The F-14 has a top speed of Mach 2.34 (1.544 mph, 2.485 km/h) at 40.000 feet. The high speed of the F-14 is primarily due to the aircraft's two engines. The F-14 features two General Electric F110-GE-400 afterburning turbofans. Each engine delivers 23.400 pounds of force (104 kN) with afterburner at sea level.