General Dynamics X-62 VISTA

The General Dynamics X-62 VISTA ("Variable Stability In-flight Simulator Test Aircraft") is an experimental aircraft used since 1992 by the United States Air Force (USAF). The aircraft, originally designated NF-16D, is an F-16D Fighting Falcon modified as a joint venture of General Dynamics and Calspan. In 2021, it was redesignated X-62A as part of an upgrade for use in the Skyborg program with System for Autonomous Control of Simulation (SACS).
The X-62A is also used by the Air Force Test Pilot School as a practice aircraft for test pilots.