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NASA Meatball NASA Dryden F-15 ACTIVE Aircraft banner
F-15B ACTIVE test stand F-15B ACTIVE test stand

Photo Number: EC95-43338-3
Photo Date: 13 Nov 1995

Formats: 558x480 JPEG Image (102 KBytes)
1191x1024 JPEG Image (740 KBytes)
2000x1720 JPEG Image (984 KBytes)

Description:

This November 13, 1995, photograph of the underside of the F-15 Advanced Controls Technology for Integrated Vehicles (ACTIVE) at NASA's Dryden Flight Research Center, Edwards, California, shows the thrust stand being used for ground testing of a new thrust-vectoring concept.

The twin-engine F-15 research aircraft is equipped with new Pratt & Whitney nozzles that can turn up to 20 degrees in any direction. They give the aircraft thrust control in the pitch (up and down) and yaw (left and right) directions. This will reduce drag and increase fuel economy or range as compared with conventional aerodynamic controls, which increase the retarding forces (drag) acting upon the aircraft.

Ground testing during the first two weeks of November 1995 went well, and flight tests began in March 1996. These tests could result in significant performance increases for military and commercial aircraft. The research program is the product of a collaborative effort by NASA, the Air Force's Wright Laboratory, Pratt & Whitney, and McDonnell Douglas Aerospace.


Keywords: F-15; ACTIVE; Advanced Controls Technology for Integrated Vehicles; thrust vectoring; thrust stand; ground test


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