friction horsepower

The amount of horsepower required to turn the crankshaft, pistons, gears, and accessories in a reciprocating engine and to compress the air into the cylinders. The brake horsepower actually delivered at the output shaft of the engine is the total horsepower developed by the engine, less the friction horsepower.
Friction horsepower.

Aviation dictionary. 2014.

Look at other dictionaries:

  • friction horsepower — (FHP) The amount of power consumed by an engine in driving itself. It includes the power absorbed in mechanical friction and in driving auxiliaries plus, in the case of four stroke engines, some pumping power …   Dictionary of automotive terms

  • friction horsepower — noun : power lost especially in an internal combustion engine through friction between parts of the machine itself …   Useful english dictionary

  • horsepower — (HP) A measurement of the engine s ability to perform work. One horsepower is defined as the ability to lift 33,000 pounds one foot in one minute. To find horsepower, the total rate of work in foot pounds accomplished is divided by 33,000. If a… …   Dictionary of automotive terms

  • horsepower — /hawrs pow euhr/, n. 1. a foot pound second unit of power, equivalent to 550 foot pounds per second, or 745.7 watts. 2. Informal. the capacity to achieve or produce; strength or talent: The university s history faculty is noted for its… …   Universalium

  • Tax horsepower — The tax horsepower or taxable horsepower was an early system by which taxation rates for automobiles were reckoned in some European countries, like Britain, Belgium, Germany, France, Italy and certain US states, (such as Illinois), where license… …   Wikipedia

  • effective horsepower — noun : the net horsepower required to move a vehicle or boat that is the part of the total propelling engine horsepower that remains after deducting losses due to engine friction and propeller and other inefficiencies * * * effective horsepower …   Useful english dictionary

  • brake horsepower — The power delivered to the propeller shaft (main drive or main output) of an aircraft engine. It is the difference between the horsepower delivered by the engine and that consumed by friction. The actual horsepower received by the propeller of an …   Aviation dictionary

  • indicated horsepower — /ˌɪndəkeɪtəd ˈhɔspaʊə/ (say .induhkaytuhd hawspowuh) noun the horsepower developed by a reciprocating engine as calculated from the indicator diagram; it exceeds the brake horsepower by the power lost in the engine by friction, pumping, etc …   Australian English dictionary

  • brake horsepower — noun The useful horsepower of an engine as measured using a friction brake (or dynamometer) attached to the drive shaft …   Wiktionary

  • road load horsepower — The amount of power at the driving wheels needed to move a vehicle down the road at a steady speed. This power varies according to the vehicle s speed, aerodynamic drag, mechanical friction, and the tires rolling resistance. Road load horsepower… …   Dictionary of automotive terms

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