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The service ceiling is the maximum altitude of an aircraft during normal operations. Specifically, it is the density altitude at which flying in a clean configuration , at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a given rate of climb.
V x increases with altitude and V Y decreases with altitude until they converge at the airplane's absolute ceiling, the altitude above which the airplane cannot climb in steady flight. The Cessna 172 is a four-seat aircraft. At maximum weight it has a V Y of 75 kn (139 km/h) indicated airspeed [4] providing a rate of climb of 721 ft/min (3.66 m/s).
This is important for clearing an obstacle, and therefore is the speed a pilot uses when executing a "short field" takeoff. V X increases with altitude, and V Y decreases with altitude until they converge at the airplane's absolute ceiling. Best angle of climb (BAOC) airspeed for an airplane is the speed at which the maximum excess thrust is ...
This maximum altitude is known as the service ceiling (top limit line in the diagram), and is often quoted for aircraft performance. The area where the altitude for a given speed can no longer be increased at level flight is known as zero rate of climb and is caused by the lift of the aircraft getting smaller at higher altitudes, until it no ...
Service ceiling: 5,500 m (18,000 ft) (absolute ceiling) Rate of climb: 6.32 m/s (1,245 ft/min) ... Ross The History of New Zealand Aviation, Heinemann, 1986;
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Data from Sport Aviation General characteristics Crew: 1 Powerplant: 1 × Lycoming IO-540 horizontally opposed piston, 425 hp (317 kW) Propellers: 3-bladed Hartzell Performance Cruise speed: 210 kn (240 mph, 390 km/h) Rate of climb: 4,407 ft/min (22.39 m/s) 1999 time to climb record See also Related development Van's RV-4 References ^ "Bruce Bohannon". November 29, 2002. Retrieved August 20 ...
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