SCAT-15F supersonic transport model, lower 3/4 front view.

Supersonic Transport Model mounted in the Ames 40x80 Foot Wind Tunnel.

3/4 rear view of SCAT-17 supersonic transport with thrust reverser installed and trailing edge flaps deflected at 30 deg.

SCAT-17 Supersonic Transport in the 40x80 foot wind tunnel at NASA Ames.

Low Speed investigation of a supersonic transport model in the 40x80 Wind Tunnel. 03/01/1961 R 975 T Zero angel of attack. Supersonic transport with delta wing and delta conard. 3/4 front view.

Low Speed Investigation of a Supersonic Transport Model in the 40x80 Wind Tunnel at NASA Ames.

Supersonic transport model test in 40x80 foot wind tunnel, 3/4 overhead view of model in shop floor. 04/06/1961 R 975 T

Supersonic Transport Model in the shop of the Ames 40x80 Foot Wind Tunnel.

Low Speed investigation of a supersonic transport model with delta wing and delta conard, in the 40x80 Wind Tunnel. R 975 T Zero angel of attack. 3/4 rear view from below.

Low Speed Investigation of a Supersonic Transport Model in the 40x80 Foot Wind Tunnel.

Advanced Technology Transport Model in the 8- by 6-Foot Supersonic Wind Tunnel

A researcher examines an Advanced Technology Transport model installed in the 8- by 6-Foot Supersonic Wind Tunnel at the National Aeronautics and Space Administration (NASA) Lewis Research Center. The Advanced Technology Transport concept was a 200-person supersonic transport aircraft that could cruise at Mach 0.9 to 0.98 with low noise and pollution outputs. General Electric and Pratt and Whitney responded to NASA Lewis’ call to design a propulsion system for the aircraft. The integration of the propulsion system with the airframe was one of the greatest challenges facing the designers of supersonic aircraft. The aircraft’s flow patterns and engine nacelles could significantly affect the performance of the engines. NASA Lewis researchers undertook a study of this 0.30-scale model of the Advanced Technology Transport in the 8- by 6-foot tunnel. The flow-through nacelles were located near the rear of the fuselage during the initial tests, seen here, and then moved under the wings for ensuing runs. Different engine cowl shapes were also analyzed. The researchers determined that nacelles mounted at the rear of the aircraft produced more efficient airflow patterns during cruising conditions at the desired velocities. The concept of the Advanced Technology Transport, nor any other US supersonic transport, has ever come to fruition. The energy crisis, environmental concerns, and inadequate turbofan technology of the 1970s were among the most significant reasons.

Commercial Supersonic Transport, CST Project, X-59 Sonic Boom Test Model, in the 8x6-foot Supersonic Wind Tunnel, SWT

An aerospace research engineer and technicians inspect the X-59 Commercial Supersonic Transport model’s installation and alignment before testing. The blade hanging from the top of the tunnel will be measuring the shock waves coming from the model during testing. The intent is to develop a supersonic aircraft with less sonic boom. Commercial Supersonic Transport, CST Project, X-59 Sonic Boom Test Model, in the 8x6-foot Supersonic Wind Tunnel, SWT

GRC-2021-C-02732

The X-59 Commercial Supersonic Transport model is installed upside down in the test section of the GRC 8x6 Supersonic wind tunnel. The blade hanging from the top of the tunnel will be measuring the shock waves coming from the bottom of the model during testing. The shock waves coming from the bottom of the model represent the sonic boom reaching the ground during flight. The shape of the model is designed so as to greatly reduce the shock waves to prevent the typical boom coming from a supersonic aircraft. Commercial Supersonic Transport, CST Project, X-59 Sonic Boom Test Model, in the 8x6-foot Supersonic Wind Tunnel, SWT

Fixed Wing Supersonic Transport in Ames 40x80 Foot Wind Tunnel.

A-5A on lakebed.

A North American Aviation A-5A Vigilante (Navy serial number 147858/NASA tail number 858) arrived from the Naval Air Test Center, Patuxent River, MD, on December 19, 1962, at the NASA Flight Research Center (now, Dryden Flight Research Center, Edwards, CA). The Center flew the A-5A in a year-long series of flights in support of the U.S. supersonic transport program. The Center flew the aircraft to determine the let-down and approach conditions of a supersonic transport flying into a dense air traffic network. With the completion of the research flights, the Center sent the A-5A back to the Navy on December 20, 1963.

A-5A on lakebed.

A North American Aviation A-5A Vigilante (Navy serial number 147858/NASA tail number 858) arrived from the Naval Air Test Center, Patuxent River, MD, on December 19, 1962, at the NASA Flight Research Center (now, Dryden Flight Research Center, Edwards, CA). The Center flew the A-5A in a year-long series of flights in support of the U.S. supersonic transport program. The Center flew the aircraft to determine the let-down and approach conditions of a supersonic transport flying into a dense air traffic network. With the completion of the research flights, the Center sent the A-5A back to the Navy on December 20, 1963.