This photograph shows STS-61 crewmemmbers training for the Hubble Space Telescope (HST) servicing mission in the Marshall Space Flight Center's (MSFC's) Neutral Buoyancy Simulator (NBS). Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. A scheduled Space Service servicing mission (STS-61) in 1993 permitted scientists to correct the problem. The MSFC NBS provided an excellent environment for testing hardware to examine how it would operate in space and for evaluating techniques for space construction and spacecraft servicing.

Test subject wearing jet-shoe apparatus and resting in sling support. The cables are not attached. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers, 1966 Winter Meeting, New York, NY, November 27 - December 1, 1966. "As mentioned previously, Langley is conducting in-house and contract studies of extra-vehicular activities wherein zero gravity is simulated by the water-immersion technique. ... Water immersion is a very useful technique where motions are slow. When more rapid motion is required, as in studying one-man propulsion systems, other approaches are required. For these studies Langley has been using the RDS [Rendezvous Docking Simulator] in a manner similar to the LLRF [Lunar Landing Research Facility] technique. The test subjects are suspended in a sling support from a single RDS cable. As they translate about, the RDS tracks them, keeping the cable vertical. The test subjects operate in an effectively zero g environment in the horizontal plane. Tracking was originally done visually using closed-circuit TV, but recently a fast-response servo system using cable angle sensors has provided better operation. Some results of tests where subjects moved about merely by jumping and also where propulsion in the form of simple "jet-shoes" was provided are given in reference 20. Both methods, within limits, appear feasible. Full six-degree-of-freedom equipment for studies of more sophisticated one-man propulsion systems is now being procured. Called OMPRA (One-Man Propulsion Research Apparatus), the device will provide a gimbal system for rotational freedom, a quick response vertical servo for this translational freedom that is not now feasible with the RDS, and a versatile maneuvering unit."

This photograph shows an STS-61 astronaut training for the Hubble Space Telescope (HST) servicing mission (STS-61) in the Marshall Space Flight Center's (MSFC's) Neutral Buoyancy Simulator (NBS). Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. A scheduled Space Service servicing mission (STS-61) in 1993 permitted scientists to correct the problem. The MSFC NBS provided an excellent environment for testing hardware to examine how it would operate in space and for evaluating techniques for space construction and spacecraft servicing.

Vehicle for Lunar Landing Research Facility at Langley Research Center, Hampton, Virginia.

Astronaut Hoffman held the Hubble Space Telescope (HST) Wide Field/Planetary Camera-1 (WF/PC1) that was replaced by WF/PC2 in the cargo bay of the Space Shuttle orbiter Endeavour during Extravehicular Activity (EVA). The STS-61 mission was the first of the series of the HST servicing missions. Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. During four spacewalks, the STS-61 crew replaced the solar panel with its flexing problems; the WF/PC1 with WF/PC2, with built-in corrective optics; and the High-Speed Photometer with the Corrective Optics Space Telescope Axial Replacement (COSTAR) to correct the aberration for the remaining instruments. The purpose of the HST, the most complex and sensitive optical telescope ever made, is to study the cosmos from a low-Earth orbit for 15 years or more. The HST provides fine detail imaging, produces ultraviolet images and spectra, and detects very faint objects. The Marshall Space Flight Center had responsibility for design, development, and construction of the HST. The Perkin-Elmer Corporation, in Danbury, Cornecticut, developed the optical system and guidance sensors.

A comparison image of the M100 Galactic Nucleus, taken by the Hubble Space Telescope (HST) Wide Field Planetary Camera-1 (WF/PC1) and Wide Field Planetary Camera-2 (WF/PC2). The HST was placed in a low-Earth orbit by the Space Shuttle Discovery, STS-31 mission, in April 1990. Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. During four spacewalks, the STS-61 crew replaced the solar panel with its flexing problems; the WF/PC1 with the WF/PC2, with built-in corrective optics; and the High-Speed Photometer with the Corrective Optics Space Telescope Axial Replacement (COSTAR), to correct the aberration for the remaining instruments. The purpose of the HST, the most complex and sensitive optical telescope ever made, is to study the cosmos from a low-Earth orbit for 15 years or more. The HST provides fine detail imaging, produces ultraviolet images and spectra, and detects very faint objects.

The National Aeronautics and Space Administration (NASA) Lewis Research Center’s Launch Vehicle Directorate in front of a full-scale model of the Centaur second-stage rocket. The photograph was taken to mark Centaur’s fiftieth launch. NASA Lewis managed the Centaur Program since 1962. At that time, the only prior launch attempt ended in failure. Lewis improved the spacecraft and tested it extensively throughout the early 1960s. In May 1966 an Atlas-Centaur sent the Surveyor spacecraft to the moon. It was the first successful soft landing on another planet. The Launch Vehicles Division was formed in 1969 to handle the increasing number of Centaur launches. The Lewis team became experts at integrating the payload with the Centaur and calculating proper trajectories for the missions. Centaur’s first 50 missions included Orbiting Astronomical Observatories, the Mariner 6 and 7 flybys of Mars, Mariner 9 which was the first spacecraft to orbit around another planet, the Pioneer 10 and 11 missions to the outer solar system, the Mariner 10 flyby of Venus and Mercury, the Viking 1 and 2 Mars landers, Voyagers 1 and 2 missions to Jupiter, Saturn, Uranus, and Neptune, and the Pioneer 12 and 13 flights to Venus.

In this photograph, the Hubble Space Telescope (HST) was being deployed on April 25, 1990. The photograph was taken by the IMAX Cargo Bay Camera (ICBC) mounted in a container on the port side of the Space Shuttle orbiter Discovery (STS-31 mission). The purpose of the HST, the most complex and sensitive optical telescope ever made, is to study the cosmos from a low-Earth orbit for 15 years or more. The HST provides fine detail imaging, produces ultraviolet images and spectra, and detects very faint objects. Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. A scheduled Space Service servicing mission (STS-61) in 1993 permitted scientists to correct the problem. During four spacewalks, new instruments were installed into the HST that had optical corrections. The Marshall Space Flight Center had responsibility for design, development, and construction of the HST. The Perkin-Elmer Corporation, in Danbury, Cornecticut, developed the optical system and guidance sensors. Photo Credit: NASA/Smithsonian Institution/Lockheed Corporation.

Gus Grissom trying on a Spacesuit; Seated with assistant; Seated with assistant putting on boots; Standing by mirror, name tag visible; Outside in suit, name tag visible. Mercury Project photo, 1961. Original negatives sent to Johnson Space Center when astronauts moved to that center. Photograph take on 03/27/1961.

Vehicle for Lunar Landing Research Facility at Langley Research Center, Hampton, Virginia.

Jet Shoe Simulator

Moon Lunar Orbiter-Lunar Orbiter II: Display Transparencies Lunar Orbiter II from Washington Press Conference. Lunar Orbiter II's telephoto lens took this picture of the floor of the crater Copernicus. -- Photograph published in Winds of Change, 75th Anniversary NASA publication (page 94), by James Schultz.

Lunar Orbiter was essentially a flying camera. The payload structure was built around a pressurized shell holding Eastman Kodak s dual-imaging photographic system, which used a camera with wide-angle and telephoto lenses that could simultaneously take two kinds of pictures on the same film. Men in in the picture are: Right to left Cliff Nelson, Calvin Broome, Israel Taback and Joe Mooreman. -- Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 329.

Gus Grissom trying on a Spacesuit; Seated with assistant; Seated with assistant putting on boots; Standing by mirror, name tag visible; Outside in suit, name tag visible. Mercury Project photo, 1961. Original negatives sent to Johnson Space Center when astronauts moved to that center. Photograph take on 03/27/1961.

This photo was taken by Lunar Orbiter IV. In it's mission to photograph areas on the new and far side of the Moon and supplemental photography of suggested Apollo landing sites.

Simulator for Apollo Rendezvous Lunar Excursion Module (LEM)

Lunar landing test of LEM at Lunar Landing Research Facility (LLRF).

The lunar module design underwent gradual evolution from the first configuration proposed by Grumman in 1962. This model is the 1964 version. Langley had the task of building a simulator for the astronauts to practice lunar landings. The configuration of the initial vehicle used with the Lunar Landing Research Facility (LLRF) was changed in 1967 to more accurately reflect the standing position of the astronauts, cockpit arrangement, instrumentation, controls and field of view.

Gus Grissom trying on a Spacesuit; Seated with assistant; Seated with assistant putting on boots; Standing by mirror, name tag visible; Outside in suit, name tag visible. Mercury Project photo, 1961. Original negatives sent to Johnson Space Center when astronauts moved to that center. Photograph take on 03/27/1961.

Walter (Wally) M. Schirra Visit to Langley Research Center to the Rendezvous Docking Simulator.

Liftoff of Lunar Orbiter III from Complex 13.

Lift off of Lunar Orbiter III from Complex 13.

1/4th Scale Model of Apollo - Impact Structures Facility Launched from an overhead pendulum device, this Apollo spacecraft was tested in the Impact Structures Facility to determine water-landing characteristics. -- Photograph published in Winds of Change, 75th Anniversary NASA publication (page 91), by James Schultz.

Saturn Model in 19 Foot Tunnel

Gus Grissom trying on a Spacesuit; Seated with assistant; Seated with assistant putting on boots; Standing by mirror, name tag visible; Outside in suit, name tag visible. Mercury Project photo, 1961. Original negatives sent to Johnson Space Center when astronauts moved to that center. Photograph take on 03/27/1961.

Vehicle for Lunar Landing Research Facility at Langley Research Center, Hampton, Virginia.

1/4th Scale Model of Apollo - Impact Structures Facility Launched from an overhead pendulum device, this Apollo spacecraft was tested in the Impact Structures Facility to determine water-landing characteristics. -- Photograph published in Winds of Change, 75th Anniversary NASA publication (page 91), by James Schultz.

Lunar Take Off Simulator: This simulator is used by scientists at the Langley Research Center ... to help determine human ability to control a lunar launch vehicle in vertical alignment during takeoff from the moon for rendezvous with a lunar satellite vehicle on the return trip to earth. The three-axis chair, a concept which allows the pilot to sit upright during launch, gives the navigator angular motion (pitch, role, and yaw) cues as he operates the vehicle through a sidearm control system. The sight apparatus in front of the pilot's face enables him to align the vehicle on a course toward a chosen star, which will be followed as a guidance reference during the lunar launch. The pilot's right hand controls angular motions, while his left hand manipulates the thrust lever. The simulator is designed for operation inside an artificial planetarium, where a star field will be projected against the ceiling during "flights". The tests are part of an extensive NASA program at Langley in the study of problems relating to a manned lunar mission. (From a NASA Langley, photo release caption.)

LOLA Cockpit and LOLA Gimbal

Astronaut Frank Borman at the controls of the Visual Docking Simulator. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator.] It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target." "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

Astronaut Charles Conrad at the controls of the Visual Docking Simulator. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator.] It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target." "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

Vehicle for Lunar Landing Research Facility at Langley Research Center, Hampton, Virginia.

Simulator for Apollo Rendezvous Lunar Excursion Module (LEM)

Multiple exposure of a test with a prototype Lunar Excursion Module. This test was one of many conducted at Langley of the structural dynamics of lunar landing.

Astronauts Charles Conrad (left) and John W. Young (right) at the controls of the Visual Docking Simulator. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator.] It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target." "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

In this photograph, the Hubble Space Telescope (HST) is clearing the cargo bay during its deployment on April 25, 1990. The photograph was taken by the IMAX Cargo Bay Camera (ICBC) mounted in a container on the port side of the Space Shuttle orbiter Discovery STS-31 mission. The purpose of the HST, the most complex and sensitive optical telescope ever made, is to study the cosmos from a low-Earth orbit for 15 years or more. The HST provides fine detail imaging, produces ultraviolet images and spectra, and detects very faint objects. Two months after its deployment in space, scientists detected a 2-micron spherical aberration in the primary mirror of the HST that affected the telescope's ability to focus faint light sources into a precise point. This imperfection was very slight, one-fiftieth of the width of a human hair. A scheduled Space servicing mission (STS-61) in 1993 permitted scientists to correct the problem. During four space walks, new instruments were installed into the HST that had optical corrections. A total of four HST servicing missions have taken place since its deployment: STS-61 in December 1993, STS-82 in February 1997, STS-103 in December 1999, and STS-109 in March 2002. The Marshall Space Flight Center had responsibility for design, development, and construction of the HST. The Perkin-Elmer Corporation, in Danbury, Cornecticut, developed the optical system and guidance sensors.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility gantry.

Astronaut James Lovell at the controls of the Visual Docking Simulator. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator.] It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target." "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

Walter (Wally) M. Schirra in Visual Docking Simulator From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator. It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target. "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Artists used paintbrushes and airbrushes to recreate the lunar surface on each of the four models comprising the LOLA simulator. Project LOLA or Lunar Orbit and Landing Approach was a simulator built at Langley to study problems related to landing on the lunar surface. It was a complex project that cost nearly $2 million dollars. James Hansen wrote: "This simulator was designed to provide a pilot with a detailed visual encounter with the lunar surface; the machine consisted primarily of a cockpit, a closed-circuit TV system, and four large murals or scale models representing portions of the lunar surface as seen from various altitudes. The pilot in the cockpit moved along a track past these murals which would accustom him to the visual cues for controlling a spacecraft in the vicinity of the moon. Unfortunately, such a simulation--although great fun and quite aesthetic--was not helpful because flight in lunar orbit posed no special problems other than the rendezvous with the LEM, which the device did not simulate. Not long after the end of Apollo, the expensive machine was dismantled." (p. 379) Ellis J. White further described LOLA in his paper "Discussion of Three Typical Langley Research Center Simulation Programs," "Model 1 is a 20-foot-diameter sphere mounted on a rotating base and is scaled 1 in. = 9 miles. Models 2,3, and 4 are approximately 15x40 feet scaled sections of model 1. Model 4 is a scaled-up section of the Crater Alphonsus and the scale is 1 in. = 200 feet. All models are in full relief except the sphere." -- Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 379; Ellis J. White, "Discussion of Three Typical Langley Research Center Simulation Programs," Paper presented at the Eastern Simulation Council (EAI's Princeton Computation Center), Princeton, NJ, October 20, 1966.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronaut Allen Bean with Lunar Landing Research Facility (LLRF) crew. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

The Lunar Landing Research Facility at Langley Research Center has been put into operation. The facility, 250 feet high and 400 feet long, provides a controlled laboratory in which NASA scientists will work with research pilots to explore and develop techniques for landing a rocket-powered vehicle on the Moon, where the gravity is only one sixth as strong as on Earth. The Lunar Landing Research Facility, a controlled laboratory for exploring and developing techniques for landing a rocket-powered vehicle on the Moon, has been put into operation at the Langley Research Center. The $3.5 million facility includes a rocket-powered piloted flight test vehicle which is operated· while partially supported from a 250-foot high, 400-foot long gantry structure to simulate the one-sixth earth gravity of the Moon in research to obtain data on the problems of lunar landing. Excerpt from Langley Researcher July 2, 1965

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility gantry.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronaut John Young (above) was one of 14 astronauts, 8 NASA test pilots, and 2 McDonnell test pilots who took part in simulator studies. Young piloted the simulator on November 12, 1963 Arthur Vogeley wrote: "Many of the astronauts have flown this simulator in support of the Gemini studies and they, without exception, appreciated the realism of the visual scene. The simulator has also been used in the development of pilot techniques to handle certain jet malfunctions in order that aborts could be avoided. In these situations large attitude changes are sometimes necessary and the false motion cues that were generated due to earth gravity were somewhat objectionable; however, the pilots were readily able to overlook these false motion cues in favor of the visual realism." Roy F. Brissenden wrote: "The basic Gemini control studies developed the necessary techniques and demonstrated the ability of human pilots to perform final space docking with the specified Gemini-Agena systems using only visual references. ... Results... showed that trained astronauts can effect the docking with direct acceleration control and even with jet malfunctions as long as good visual conditions exist.... Probably more important than data results was the early confidence that the astronauts themselves gained in their ability to perform the maneuver in the ultimate flight mission." -- Published in Barton C. Hacker and James M. Grimwood, On the Shoulders of Titans: A History of Project Gemini, NASA SP-4203; A.W. Vogeley, "Discussion of Existing and Planned Simulators For Space Research," Paper presented at the Conference on the Role of Simulation in Space Technology, August 17-21, 1964; Roy F. Brissenden, "Initial Operations with Langley's Rendezvous Docking Facility," Langley Working Paper, LWP-21, 1964.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

NASA TN D-3828 Figure 15. OPERATIONAL FEATURES OF THE LANGLEY LUNAR LANDING RESEARCH FACILITY by Thomas C. O'Bryan and Donald E. Hewes Details of vehicle gamble support assembly.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

Lunar Landing Simulator: Astronaut Roger B. Chaffee (left) receives instruction from Maxwell W. Goode, a scientist at NASA s Langley Research Center. Goode is explaining the operation of the Lunar Landing Simulator at the Lunar Landing Research Facility. Chaffee was one of the third group of astronauts selected by NASA in October 1963. In addition to participating in the overall training program, he was also tasked with working on flight control communications systems, instrumentation systems, and attitude and translation control systems in the Apollo Branch of the Astronaut office. On March 21, 1966, he was selected as one of the pilots for the AS-204 mission, the first 3-man Apollo flight. Lieutenant Commander Chaffee died on January 27, 1967, in the Apollo spacecraft flash fire during a launch pad test at Kennedy Space Center, Florida.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Artists used paintbrushes and airbrushes to recreate the lunar surface on each of the four models comprising the LOLA simulator. Project LOLA or Lunar Orbit and Landing Approach was a simulator built at Langley to study problems related to landing on the lunar surface. It was a complex project that cost nearly $2 million dollars. James Hansen wrote: "This simulator was designed to provide a pilot with a detailed visual encounter with the lunar surface; the machine consisted primarily of a cockpit, a closed-circuit TV system, and four large murals or scale models representing portions of the lunar surface as seen from various altitudes. The pilot in the cockpit moved along a track past these murals which would accustom him to the visual cues for controlling a spacecraft in the vicinity of the moon. Unfortunately, such a simulation--although great fun and quite aesthetic--was not helpful because flight in lunar orbit posed no special problems other than the rendezvous with the LEM, which the device did not simulate. Not long after the end of Apollo, the expensive machine was dismantled." (p. 379) Ellis J. White further described LOLA in his paper "Discussion of Three Typical Langley Research Center Simulation Programs," "Model 1 is a 20-foot-diameter sphere mounted on a rotating base and is scaled 1 in. = 9 miles. Models 2,3, and 4 are approximately 15x40 feet scaled sections of model 1. Model 4 is a scaled-up section of the Crater Alphonsus and the scale is 1 in. = 200 feet. All models are in full relief except the sphere." -- Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, (Washington: NASA, 1995), p. 379; From Ellis J. White, "Discussion of Three Typical Langley Research Center Simulation Programs," Paper presented at the Eastern Simulation Council (EAI's Princeton Computation Center), Princeton, NJ, October 20, 1966.

Astronaut Alan Shepard (right) was one of 14 astronauts, 8 NASA test pilots, and 2 McDonnell test pilots who took part in simulator studies. Shepard flew the simulator on November 14, 1963. A.W. Vogeley wrote: "Many of the astronauts have flown this simulator in support of the Gemini studies and they, without exception, appreciated the realism of the visual scene. The simulator has also been used in the development of pilot techniques to handle certain jet malfunctions in order that aborts could be avoided. In these situations large attitude changes are sometimes necessary and the false motion cues that were generated due to earth gravity were somewhat objectionable; however, the pilots were readily able to overlook these false motion cues in favor of the visual realism." Roy F. Brissenden noted that: "The basic Gemini control studies developed the necessary techniques and demonstrated the ability of human pilots to perform final space docking with the specified Gemini-Agena systems using only visual references. ... Results... showed that trained astronauts can effect the docking with direct acceleration control and even with jet malfunctions as long as good visual conditions exist.... Probably more important than data results was the early confidence that the astronauts themselves gained in their ability to perform the maneuver in the ultimate flight mission." Shepard commented: "I had the feeling tonight - a couple of times - that I was actually doing the space mission instead of the simulation. As I said before, I think it is a very good simulation." Shepard also commented on piloting techniques. Most astronauts arrived at this same preferred technique: Shepard: "I believe I have developed the preferred technique for these conditions and the technique appeared to me to be best was to come in slightly above the target so that I was able to use the longitudinal marks on the body of the target as a reference, particularly for a lateral translation and, of course, I used the foreshortening effect for a vertical translation, and this appeared to give me the best results. By that I mean the least number of control motions and the lowest fuel usage and the best end techniques, or the best end conditions, I should say." Engineer: "When you started to run you didn't start thrusting immediately I don't believe. It looked like you started working on your attitudes, then started closing in." Shepard: "That is correct. I did that because I felt that I wanted to get the X-axis translation in the most effective vector and for minimum fuel usage that wouldn't introduce any other lateral or vertical offsets that did not already exist." -- Published in Barton C. Hacker and James M. Grimwood, On the Shoulders of Titans: A History of Project Gemini, NASA SP-4203; A.W. Vogeley, "Discussion of Existing and Planned Simulators For Space Research," Paper presented at the Conference on the Role of Simulation in Space Technology, August 17-21, 1964; Roy F. Brissenden, "Initial Operations with Langley's Rendezvous Docking Facility," Langley Working Paper, LWP-21, 1964.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Icarus Lunar Walker,Lunar Landing Research Facility. Langley study of the backpack propulsion unit, by Bell Aerosystems. Icarus full scale test at Lunar Landing Research Facility - low gravity simulator. A NASA Langley researcher moon walks under the Lunar Landing Research Facility's gantry. More information on this can be read in the Document. "STUDIES OF PILOTING PROBLEMS OF ONE-MAN FLYING UNITS OPERATED IN SIMULATED LUNAR GRAVITY" BY Donald E. Hewes

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility gantry.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronaut Alan Shepard (right) was one of 14 astronauts, 8 NASA test pilots, and 2 McDonnell test pilots who took part in simulator studies. Shepard flew the simulator on November 14, 1963. A.W. Vogeley wrote: "Many of the astronauts have flown this simulator in support of the Gemini studies and they, without exception, appreciated the realism of the visual scene. The simulator has also been used in the development of pilot techniques to handle certain jet malfunctions in order that aborts could be avoided. In these situations large attitude changes are sometimes necessary and the false motion cues that were generated due to earth gravity were somewhat objectionable; however, the pilots were readily able to overlook these false motion cues in favor of the visual realism." Roy F. Brissenden noted that: "The basic Gemini control studies developed the necessary techniques and demonstrated the ability of human pilots to perform final space docking with the specified Gemini-Agena systems using only visual references. ... Results... showed that trained astronauts can effect the docking with direct acceleration control and even with jet malfunctions as long as good visual conditions exist.... Probably more important than data results was the early confidence that the astronauts themselves gained in their ability to perform the maneuver in the ultimate flight mission." Shepard commented: "I had the feeling tonight - a couple of times - that I was actually doing the space mission instead of the simulation. As I said before, I think it is a very good simulation." Shepard also commented on piloting techniques. Most astronauts arrived at this same preferred technique: Shepard: "I believe I have developed the preferred technique for these conditions and the technique appeared to me to be best was to come in slightly above the target so that I was able to use the longitudinal marks on the body of the target as a reference, particularly for a lateral translation and, of course, I used the foreshortening effect for a vertical translation, and this appeared to give me the best results. By that I mean the least number of control motions and the lowest fuel usage and the best end techniques, or the best end conditions, I should say." Engineer: "When you started to run you didn't start thrusting immediately I don't believe. It looked like you started working on your attitudes, then started closing in." Shepard: "That is correct. I did that because I felt that I wanted to get the X-axis translation in the most effective vector and for minimum fuel usage that wouldn't introduce any other lateral or vertical offsets that did not already exist." -- Published in Barton C. Hacker and James M. Grimwood, On the Shoulders of Titans: A History of Project Gemini, NASA SP-4203; A.W. Vogeley, "Discussion of Existing and Planned Simulators For Space Research," Paper presented at the Conference on the Role of Simulation in Space Technology, August 17-21, 1964; Roy F. Brissenden, "Initial Operations with Langley's Rendezvous Docking Facility," Langley Working Paper, LWP-21, 1964.

Alan Shepard and engineer looking at equipment, alone in Visual Docking Simulator, with engineers in Visual Docking Simulator.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Lunar landing test of LEM at LLRF Lunar Landing Research Facility: A NASA Langley research pilot flies a lunar lander in a test conducted in the Lunar Landing Research Facility.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Artist rendering of the lunar excursion module approaching the moon. The lunar module design underwent gradual evolution from the first configuration proposed by Grumman in 1962. This model is a 1964 rendering. Langley had the task of building a simulator for the astronauts to practice lunar landings. The configuration of the initial vehicle used with the Lunar Landing Research Facility (LLRF) was changed in 1967 to more accurately reflect the standing position of the astronauts, cockpit arrangement, instrumentation, controls and field of view.

Walter Cronkite in the Reduced Gravity Simulator. Various views of Cronkite in the Lunar Landing Research Facility's Reduced Gravity Simulator which was used to train the astronauts for weightlessness. L68-8308 Caption: "During a 1968 visit to Langley, then CBS News Anchorman Walter Cronkite tries out the Reduced Gravity Simulator, a series of cable-supported slings designed to approximate the Moon's gravity, 1/6th that of Earth's." Photograph published in Winds of Change, 75th Anniversary NASA publication, p 91, by James Schultz.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Group photo with crew and Astronaut Roger Chaffee at Lunar Lander Research Facility. Chaffee was one of the third group of astronauts selected by NASA in October 1963. In addition to participating in the overall training program, he was also tasked with working on flight control communications systems, instrumentation systems, and attitude and translation control systems in the Apollo Branch of the Astronaut office. On March 21, 1966, he was selected as one of the pilots for the AS-204 mission, the first 3-man Apollo flight. Lieutenant Commander Chaffee died on January 27, 1967, in the Apollo spacecraft flash fire during a launch pad test at Kennedy Space Center, Florida.

Alan Shepard and engineer looking at equipment, alone in Visual Docking Simulator, with engineers in Visual Docking Simulator.

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

Astronauts Stuart A. Roosa, and Alfred M. Worden training a tRendezvous Docking Simulator NASA Langley. Worden was one of the 19 astronauts selected by NASA in April 1966. He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. Colonel Roosa was one of the 19 astronauts selected by NASA in April 1966. He was a member of the astronaut support crew for the Apollo 9 flight.

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

Astronaut James Lovell at the controls of the Visual Docking Simulator. From A.W. Vogeley, "Piloted Space-Flight Simulation at Langley Research Center," Paper presented at the American Society of Mechanical Engineers 1966 Winter Meeting, New York, NY, November 27-December 1, 1966. "This facility was [later known as the Visual-Optical Simulator.] It presents to the pilot an out-the-window view of his target in correct 6 degrees of freedom motion. The scene is obtained by a television camera pick-up viewing a small-scale gimbaled model of the target." "For docking studies, the docking target picture was projected onto the surface of a 20-foot-diameter sphere and the pilot could, effectively, maneuver into contract. this facility was used in a comparison study with the Rendezvous Docking Simulator - one of the few comparison experiments in which conditions were carefully controlled and a reasonable sample of pilots used. All pilots preferred the more realistic RDS visual scene. The pilots generally liked the RDS angular motion cues although some objected to the false gravity cues that these motions introduced. Training time was shorter on the RDS, but final performance on both simulators was essentially equal. " "For station-keeping studies, since close approach is not required, the target was presented to the pilot through a virtual-image system which projects his view to infinity, providing a more realistic effect. In addition to the target, the system also projects a star and horizon background. "

Astronauts Conrad and Bean at Lunar Landing Research Facility. Alan Bean was one of the third group of astronauts named by NASA in October 1963. He served as backup astronaut for the Gemini 10 and Apollo 9 missions. In September of 1962, Mr. Conrad was selected as an astronaut by NASA. His first flight was Gemini V, which established the space endurance record and placed the United States in the lead for man-hours in space. As commander of Gemini XI, Mr. Conrad helped to set a world's altitude record. He then served as commander of Apollo XII, the second lunar landing. On Mr. Conrad's final mission, he served as commander of Skylab II, the first United States Space Station. https://www.nasa.gov/astronauts/biographies/former for more information.

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility gantry.

The Lunar Landing Research Facility at Langley Research Center has been put into operation. The facility, 250 feet high and 400 feet long, provides a controlled laboratory in which NASA scientists will work with research pilots to explore and develop techniques for landing a rocket-powered vehicle on the Moon, where the gravity is only one sixth as strong as on Earth. The Lunar Landing Research Facility, a controlled laboratory for exploring and developing techniques for landing a rocket-powered vehicle on the Moon, has been put into operation at the Langley Research Center. The $3.5 million facility includes a rocket-powered piloted flight test vehicle which is operated· while partially supported from a 250-foot high, 400-foot long gantry structure to simulate the one-sixth earth gravity of the Moon in research to obtain data on the problems of lunar landing. Excerpt from Langley Researcher July 2, 1965

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility gantry.

Walter Cronkite in the Reduced Gravity Simulator. Various views of Cronkite in the Lunar Landing Research Facility's Reduced Gravity Simulator which was used to train the astronauts for weightlessness. L68-8308 Caption: "During a 1968 visit to Langley, then CBS News Anchorman Walter Cronkite tries out the Reduced Gravity Simulator, a series of cable-supported slings designed to approximate the Moon's gravity, 1/6th that of Earth's." Photograph published in Winds of Change, 75th Anniversary NASA publication, p 91, by James Schultz.

Astronaut Eugene Cernan at Lunar Lander Research Facility. Cernan under gantry, in training module. Captain Cernan was one of fourteen astronauts selected by NASA in October 1963. On his second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969, the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module.

POGO is a device that uses cables connected to the ceiling to suspend an astronaut. POGO supports five-sixths of a person's weight; it mimics the one-sixth gravity of the moon. An astronaut walking around on POGO has the sensation of walking on the moon. POGO has been around since the Apollo days - in fact, the device gets its name from the way Apollo astronauts tended to bounce when suspended from it. The real name for POGO is the Partial Gravity Simulator.

ICARUS - Lunar Walker with Pilot Dick Yenni. Yenni in ICARUS rig for jet propelled lunar mobility, at Lunar Landing Research Facility or Gantry.

The original seven Mercury astronauts during training at NASA Langley Research Center Project Mercury. The original seven astronauts trained at NASA Langley Research Center. Chosen from among hundreds of applicants, the seven men were all test pilots. Standing in front of the U.S. Air Force Convair F-106B aircraft, the astronauts are, from left, Lt. M. Scott Carpenter, Capt. Gordon Cooper, Col. John H. Glenn Jr., Capt. Virgil "Gus" Grissom, Lt. Comdr. Walter Schirra, Lt. Comdr. Alan B. Shepard Jr. and Capt. Donald K. "Deke" Slayton. While familiarizing the astronauts with the Mercury set-up, Langley employees helped them to specialize in the technical areas crucial to the overall success of Project Mercury. Langley people also guided and monitored the astronauts activities through the many spaceflight simulators and other training devices built at the Center expressly for the manned space program. In less than three years, Project Mercury proved that men could be sent into space and returned safely to Earth, setting the stage for the longer duration Gemini flights and the Apollo lunar landings. This photograph was originally taken on 01/20/1961 and is published in Spaceflight Revolution NASA Langley Research Center from Sputnik to Apollo, NASA SP-4308, by James R. Hansen, 1995, page 40.