NASA Armstrong Flight Research Center test pilots Jim "Clue" Less (front) and Wayne "Ringo" Ringelberg (back) taxi out in a NASA F/A-18 at Ellington Field in Houston, Texas, in preparation of a training flight for the Quiet Supersonic Flights 2018 series, or QSF18. The QSF18 flights will provide NASA with feedback necessary to validate community response techniques for future quiet supersonic research flights for the X-59 Quiet SuperSonic Technology, or QueSST.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo"Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue"Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo"Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA test pilots Jim "Clue" Less and Wayne "Ringo" Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

Part of the mission criteria that led to the decision to fly off the coast of Galveston for QSF18 was the convenience of having NASA Johnson Space Center’s facilities at Ellington Field.

NASA test pilots Jim “Clue” Less and Wayne “Ringo” Ringelberg step to the F/A-18 research aircraft at Ellington Field and conduct pre-flight safety checks on the aircraft prior to a supersonic research flight for the QSF18 series.

NASA Armstrong Chief Pilot Nils Larson presents NASA’s aeronautics research to students from Austin Middle School in Galveston, Texas during the QSF18 flight series.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA's F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

NASA’s F/A-18 research aircraft stands ready prior to a QSF18 supersonic research flight off the coast of Galveston, Texas.

A contrail of the NASA F/A-18 research aircraft is seen off the coast of Galveston, performing the quiet supersonic dive maneuver in support of the QSF18 flight series.

A contrail of the NASA F/A-18 research aircraft is seen off the coast of Galveston, performing the quiet supersonic dive maneuver in support of the QSF18 flight series.

A contrail of the NASA F/A-18 research aircraft is seen off the coast of Galveston, performing the quiet supersonic dive maneuver in support of the QSF18 flight series.

A contrail of the NASA F/A-18 research aircraft is seen off the coast of Galveston, performing the quiet supersonic dive maneuver in support of the QSF18 flight series.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

NASA pilots, engineers, and communications specialists brief the day's operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA's techniques and technology for gather community feedback data for X-59's Low-Boom Flight Demonstration mission.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

The flight operations crew for NASA's QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter "thumps" on land.

The flight operations crew for NASA’s QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter “thumps” on land.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

NASA pilots, engineers, and communications specialists brief the day’s operations prior to a supersonic research flight for QSF18, taking off from Ellington Field in Houston, Texas. The flights are meant to validate NASA’s techniques and technology for gather community feedback data for X-59’s Low-Boom Flight Demonstration mission.

The flight operations crew for NASA's QSF18 flight series debriefs following a flight with the F/A-18 research aircraft. The flight included a quiet supersonic dive maneuver at high altitudes off the coast to produce a sonic boom out over the ocean, with the intention of producing quieter "thumps" on land.

NASA ground and maintenance crews prepare the F/A-18 research aircraft for a supersonic research flight off the coast of Galveston, Texas in support of the QSF18 flight campaign. These crews are vital to making sure the aircraft is ready to operate safely and efficiently for NASA’s research.

NASA ground and maintenance crews prepare the F/A-18 research aircraft for a supersonic research flight off the coast of Galveston, Texas in support of the QSF18 flight campaign. These crews are vital to making sure the aircraft is ready to operate safely and efficiently for NASA’s research.

NASA’s F/A-18 research aircraft takes off from Ellington Field in Houston, Texas for a quiet supersonic research flight off the coast of Galveston, as part of the QSF18 flight series. The F/A-18 will climb to 50,000 feet over the Gulf of Mexico, where it will perform the quiet supersonic dive maneuver.

NASA ground and maintenance crews prepare the F/A-18 research aircraft for a supersonic research flight off the coast of Galveston, Texas in support of the QSF18 flight campaign. These crews are vital to making sure the aircraft is ready to operate safely and efficiently for NASA’s research.

NASA ground and maintenance crews prepare the F/A-18 research aircraft for a supersonic research flight off the coast of Galveston, Texas in support of the QSF18 flight campaign. These crews are vital to making sure the aircraft is ready to operate safely and efficiently for NASA’s research.

NASA’s F/A-18 research aircraft takes off from Ellington Field in Houston, Texas for a quiet supersonic research flight off the coast of Galveston, as part of the QSF18 flight series. The F/A-18 will climb to 50,000 feet over the Gulf of Mexico, where it will perform the quiet supersonic dive maneuver.

NASA’s F/A-18 research aircraft takes off from Ellington Field in Houston, Texas for a quiet supersonic research flight off the coast of Galveston, as part of the QSF18 flight series. The F/A-18 will climb to 50,000 feet over the Gulf of Mexico, where it will perform the quiet supersonic dive maneuver.

NASA ground and maintenance crews prepare the F/A-18 research aircraft for a supersonic research flight off the coast of Galveston, Texas in support of the QSF18 flight campaign. These crews are vital to making sure the aircraft is ready to operate safely and efficiently for NASA’s research.

NASA’s F/A-18 research aircraft takes off from Ellington Field in Houston, Texas for a quiet supersonic research flight off the coast of Galveston, as part of the QSF18 flight series. The F/A-18 will climb to 50,000 feet over the Gulf of Mexico, where it will perform the quiet supersonic dive maneuver.

NASA’s F/A-18 research aircraft takes off from Ellington Field in Houston, Texas for a quiet supersonic research flight off the coast of Galveston, as part of the QSF18 flight series. The F/A-18 will climb to 50,000 feet over the Gulf of Mexico, where it will perform the quiet supersonic dive maneuver.