Dassault MD.750

The Dassault MD.750, also known as the Mirage 6000, Mega Mirage or Spectre, was a single-seat twinjet tailless delta interceptor concept developed by Dassault Aviation from 1958 and periodically reworked through the 1960s. Its design goals included a maximum speed of Mach 3.5 and a climb to 16,000 metres in about five or six minutes. The low-mounted delta wing ran most of the length of the fuselage behind the intakes, as on other Mirage fighters, and it had a single vertical tail, but it used square-section intake ramps with a linear shock plate rather than shock cones, like the North American A-5 Vigilante and the MiG-25, giving a boxy intake section. The existence of the Spectre project was later confirmed by a Dassault Aviation vice-president.