Estimate zero-wind lift-off (ground) distance for the Citation corporate jet at the maximum takeoff weight (MTOW) of 20,000 lbs at elevation of 4,000 feet in ISA conditions. Wing surface area is 320 ft 2 . Assume liftoff speed is 15% above the stalling speed in takeoff configuration. Assume zero-wind conditions (GS=TAS). Due to required ground clearance on rotation and the tail-strike possibility the maximum lift-off coefficient of lift is 1.75 with flaps in takeoff configuration. Maximum takeoff thrust is 7,000 lbs and is constant during the takeoff run and liftoff. Runway is perfectly flat (zero slope). Assume average aerodynamic and rolling drag during takeoff roll to be 3,000 lb. What is total gross takeoff distance, if the airborne distance to 35 ft height from liftoff is 1,250 ft