First of two TF-15A two seater prototypes. First flew as 71-0290 in 1973. Redesignated as an F-15B in 1977. To McDonnell-Douglas as a test aircraft in 1984. Redesignated as an NF-15B in 1988 following modifications. To NASA in 1993. Registered as NASA 837 by 1996 and N837NA in 2001. Last flew in 2009. Preserved at Edwards AFB, CA.

First two-seater F-15 produced; on loan to NASA from the USAF. At the time known as the F-15 ACTIVE - Advanced Control Technology for Integrated Vehicles (a program that runned from 1993-1999).

First two-seater F-15 produced; on loan to NASA from the USAF. At the time known as the F-15 ACTIVE - Advanced Control Technology for Integrated Vehicles (1993-1999). Now on display at Edwards AFB.

Early Eagle operated by NASA, fitted with canards for aerodynamic trials.

F-15B taxis to runway 05 following completion of the 78' Norton show. This aircraft was modified about 6 years later in the 'Agile Eagle' program where forward canards were added plus other mods.

pre-production Eagle. used for various tests. 71-0286 behind.