The Citation X has a maximum height of 19 feet, 3 inches from the ground to the top of the tail. The aircraft's length overall is 72 feet, 4 inches with a wingspan of 63 feet, 11 inches. The interior cabin height is 5 feet, 8 inches with a width of 5 feet, 6 inches and a length of 23 feet, 11 inches. The area available for baggage is 72 cubic feet aft of the passenger cabin in the heated, pressurized tail cone.
The Citation X has a maximum ramp weight of 36,400 lbs. and a takeoff weight 36,100 lbs. allowing for a 300-lb. fuel burn in engine runup, taxi and ground maneuvering. The maximum landing weight of the aircraft is 31,800 lbs. The zero-fuel weight, or the total permissible laden weight of the plane without any fuel, is 24,400 lbs. Usable fuel capacity weight is 12,931 lbs. A typically equipped Citation X has an empty weight of 22,100 lbs. with a useful load of 14,300 lbs., although the actual empty weight will vary depending on options of the plane. The maximum payload is 2,300 lbs. and the full-fuel payload is 1,369 lbs.
Power is supplied by two Rolls Royce AE3007C1 jet engines providing 6,764 lbs. of thrust from each. Engines are pylon-mounted on the fuselage near the tail.
The Citation X requires 5,140 feet to become airborne when operating at maximum takeoff weight on a level, dry, paved runway at sea level with 15 degrees of flaps deployed. To land on the same runway at maximum landing weight, the jet requires at least 3,400 feet.
Flight speeds from sea level to 8,000 feet altitude are restricted to a maximum 270 knots indicated air speed. From 8,000 feet to 30,650 feet the never-exceed speed is 350 knots and from 30,650 feet to 51,000 feet the maximum allowable indicated speed is mach 0.92, just below the speed of sound. Maximum allowable speeds on takeoff and approach, with flaps deployed, are 250 knots with 5 degrees of flaps, 210 knots with 15 degrees of flaps and 180 knots with full flaps. Never-exceed speed while operating or deploying landing gear is 210 knots.
