takeoff power

The amount of power that an engine is allowed to produce for a limited period of time for takeoff. The use of takeoff power is usually limited to 5 min for reciprocating engines and up to 21/2 min for gas turbine engines. This may not always be the case. Specifically, with respect to reciprocating engines, it is the brake horsepower developed under standard, sea-level conditions and under the maximum conditions of the crankshaft rotational speed and the engine manifold pressure approved for the normal takeoff. It is limited in continuous use to the period of time shown in the approved engine specifications. With respect to gas turbine engines, it is the thrust developed under static conditions at a specified altitude and atmospheric conditions of the rotor shaft rotational speed and gas temperature approved for the normal take-off. It is limited in continuous use to the period of time shown in the approved engine specifications.

Aviation dictionary. 2014.

Look at other dictionaries:

  • takeoff warning system — A warning system in which an aural warning is given if the flaps, stabilizer, or speed brakes are in an unsafe position when the throttles are advanced to the takeoff power position. Takeoff warning indication system in a transport aircraft …   Aviation dictionary

  • Takeoff — is the phase of flight in which an aircraft goes through a transition from moving along the ground (taxiing) to flying in the air, usually starting on a runway. For balloons, helicopters and some specialized fixed wing aircraft (VTOL aircraft… …   Wikipedia

  • Takeoff/Go-around switches — (TO/GA) are switches activated on the autothrottle of an autopilot of a modern aircraft. It has two modes, takeoff (TO) and go around (GA).The switch is the same for both takeoff and go around modes, the autopilot throttle programming knows what… …   Wikipedia

  • power takeoff — ☆ power takeoff n. an accessory unit on a truck, tractor, etc., usually linked to the transmission, allowing engine power to be used for driving other equipment, as a winch …   English World dictionary

  • takeoff distance required — i. The horizontal distance required to accelerate from a standing start with all engines operating to achieve a safety speed at a height of 50 ft above the takeoff surface, multiplied by 1.15 for airplanes with a maximum takeoff weight of 4500 lb …   Aviation dictionary

  • power takeoff — PTO (power takeoff) part of a tractor s machinery that provides electrical power to additional equipment …   English contemporary dictionary

  • takeoff safety speed — (V 2 ) A referenced air speed obtained after takeoff at which the required one engine inoperative climb performance can be achieved. This speed is used in the determination of takeoff performance. It is a legal requirement for some commercial and …   Aviation dictionary

  • takeoff — noun Date: 1846 1. an imitation especially in the way of caricature 2. a. a spot at which one takes off b. a starting point ; point of departure 3. a. a rise or leap from a surface in making a jump or flight or an ascent in an aircraft or in the… …   New Collegiate Dictionary

  • power take off — PTO (power takeoff) part of a tractor s machinery that provides electrical power to additional equipment …   English contemporary dictionary

  • power takeoff — A shaft from which power is available to drive an accessory or other item …   Aviation dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.