On 12 June 1965, the second prototype, "X-2", conducted its first flight. On 22 October 1965, the "X-2" performed a successful transition with a new autopilot system installed. The tests were subsequently continued with "X-2", which in contrast to "X-1" was fitted with afterburners. However, the project was cancelled in 1968. The proposed VJ 101 D Mach 2 interceptor was never completed. Today, VJ 101 C "X-2" is on public display at the Deutsches Museum in Munich. While the VJ 101C did not proceed to production status, various other projects of the era to develop supersonic-capable VTOL fighter aircraft, including the Mirage IIIV and the Hawker Siddeley P.1154 (a supersonic parallel to what would become the Hawker Siddeley Harrier, a subsonic VTOL combat aircraft that reached operational service), ultimately met similar fates. The Harrier jump jet and, substantially later, the Lockheed Martin F-35 Lightning II, has since demonstrated the potential of VTOL fighters.