X-62/NF-16D VISTA

The General Dynamics X-62 VISTA ("Variable Stability In-flight Simulator Test Aircraft") is an experimental aircraft, derived from the F-16D Fighting Falcon, which was modified as a joint venture between General Dynamics and Calspan for use by the United States Air Force (USAF). The NF-16D VISTA is a Block 30 F-16D based on the airframe design of the Israeli Air Force version, which incorporates a dorsal fairing running the length of the fuselage aft of the canopy and a heavyweight landing gear derived from the Block 40 F-16C/D. The fairing houses most of the variable-stability equipment and test instrumentation. The heavyweight gear permits simulation of aircraft with higher landing sink rates than a standard F-16.
The aircraft was redesignated X-62A on 14 June 2021 as part of an upgrade to a Skyborg, with System for Autonomous Control of Simulation (SACS).
X-62A remains on the curriculum of the Air Force Test Pilot School as a practice aircraft for test pilots.