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NASA Meatball NASA Dryden F-18 High Alpha Research Vehicle (HARV) banner
F-18 HARV in flight close-up F-18 HARV in flight close-up

Photo Number: EC94-42645-9
Photo Date: June 27, 1994

Formats: 539x480 JPEG Image (131 KBytes)
1150x1024 JPEG Image (620 KBytes)
3000x2670 JPEG Image (5,478 KBytes)

Description: The modified F-18 High Alpha Research Vehicle (HARV) carries out air flow studies on a flight from the Dryden Flight Research Center, Edwards, California. Using oil, researchers were able to track the air flow across the wing at different speeds and angles of attack.

A thrust vectoring system had been installed on the engines' exhaust nozzles for the high angle of attack research program. The thrust vectoring system, linked to the aircraft's flight control system, moves a set of three paddles on each engine to redirect thrust for directional control and increased maneuverability at angles of attack at up to 70 degrees.

Keywords: F-18 High Alpha Research Vehicle; HARV; air flow studies; oil; thrust vectoring; high angle of attack

Last Modified: February 6, 2002
Responsible NASA Official: Marty Curry
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