One of NASA's two F-15 research aircraft gets refueled in mid-air over Lake Isabella from a USAF KC-135 tanker while NASA's other F-15 flies chase alongside.

NASA's two modified F-15B research aircraft joined up for a fly-over of NASA's Dryden Flight Research Center on Edwards AFB, Calif., after a research mission.

NASA Dryden's highly modified F-15B aircraft, tail number 837, serves as an Intelligent Flight Control System (IFCS) research testbed aircraft

Northrop Grumman Corp.'s modified F-5E Shaped Sonic Boom Demonstration (SSBD) aircraft flies off the wing of NASA's F-15B Research testbed aircraft.

NASA's highly modified NF-15B research aircraft cruises over Southern California's Tehachapi Mountains near Lake Isabella during a research mission.

NASA's F-15B conducts a local Mach investigation flight over California's Mojave Desert.

NASA's F-15B from the Dryden Flight Research Center flew in the supersonic shockwave of a modified U.S. Navy F-5E jet in support of the Shaped Sonic Boom Demonstration (SSBD) project. On Aug. 27, 2003, the F-5 SSBD aircraft demonstrated a method to reduce

NASA's F-15B carrying thermal insulation foam on its flight test fixture is shadowed by a NASA F-18B chase aircraft during a LIFT experiment research flight.

Approaching the runway after the first evaluation flight of the Quiet Spike project, NASA's F-15B testbed aircraft cruises over Roger's Dry Lakebed