Data from Spike[10] General characteristics Capacity: 18 passengers Length: 122 ft (37 m) Wingspan: 58 ft (18 m) Empty weight: 47,250 lb (21,432 kg) Max takeoff weight: 115,000 lb (52,163 kg) Fuel capacity: 56,000 lb Powerplant: 2 × engines , 20,000 lbf (89 kN) thrust each Performance Maximum speed: 1,033 kn (1,189 mph, 1,913 km/h) Mach 1.8 Cruise speed: 918 kn (1,056 mph, 1,700 km/h) Mach 1.6 Range: 6,200 nmi (7,100 mi, 11,500 km) Service ceiling: 50,000 ft (15,000 m)