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engine operating speed

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  • normal operating speed — i. The level flight speed of an aircraft at its design altitude, with the engine operating at no more than 75% of its rated horsepower. ii. The maximum operating speed under any condition. The speed is represented by the symbol VNO , which has… …   Aviation dictionary

  • all-engine screen speed — The speed at which the airplane is assumed to pass through the screen height with all engines operating on takeoff. Its value is usually V2 + 10 knots. V2 is the takeoff safety speed and is the lowest indicated air speed at which the directional… …   Aviation dictionary

  • Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… …   Wikipedia

  • Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …   Wikipedia

  • Engine balance — is the design, construction and tuning of an engine to run smoothly. Engine balance reduces vibration and other stresses, and may improve the performance, efficiency, cost of ownership and reliability of the engine, as well as reducing the stress …   Wikipedia

  • Operating system — Operating systems …   Wikipedia

  • Engine tuning — is the adjustment, modification or design of internal combustion engines to yield optimal performance, either in terms of power output or economy. It has a long history, almost as long as the development of the car in general, originating with… …   Wikipedia

  • speed — [spēd] n. [ME sped < OE spæd, wealth, power, success, akin to spowan, to prosper, succeed < IE base * spēi , to flourish, expand > SPACE, SPARE] 1. the act or state of moving rapidly; swiftness; quick motion 2. a) the rate of movement or …   English World dictionary

  • Engine knocking — Pinging redirects here. For other uses, see Ping (disambiguation). Knocking (also called knock, detonation, spark knock, pinging or pinking) in spark ignition internal combustion engines occurs when combustion of the air/fuel mixture in the… …   Wikipedia

  • Engine control unit — An engine control unit (ECU) is an electronic control unit which controls various aspects of an internal combustion engine s operation. The simplest ECUs control only the quantity of fuel injected into each cylinder each engine cycle. More… …   Wikipedia

  • Engine test stand — An engine test stand is a facility used to develop, characterize and test engines. The facility, often offered as a product to automotive OEMs, allows engine operation in different operating regimes and offers measurement of several physical… …   Wikipedia

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