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An aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always a type of lightweight internal combustion engine. This article is an overview of the basic types of aircraft engines and the design concepts employed in engine development for aircraft.

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Wikipedia about aircraft engine

An aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always a type of lightweight internal combustion engine. This article is an overview of the basic types of aircraft engines and the design concepts employed in engine development for aircraft.

Engine design considerations

The process of developing an engine is one of compromises. Engineers design specific attributes into engines to achieve specific goals. Aircraft are one of the most demanding applications for an engine, presenting multiple design requirements, many of which conflict with each other. An aircraft engine must be:

  • reliable, as losing power in an airplane is a substantially greater problem than an automobile engine seizing. Aircraft engines operate at temperature, pressure, and speed extremes, and therefore need to operate reliably and safely under all these conditions.
  • lightweight, as a heavy engine increases the empty weight of the aircraft & reduces its payload.
  • powerful, to overcome the weight and drag of the aircraft.
  • small and easily streamlined; large engines with substantial surface area, when installed, create too much drag, wasting fuel and reducing power output.
  • repairable, to keep the cost of replacement down. Minor repairs should be relatively inexpensive.
  • fuel efficient to give the aircraft the range the design requires.
  • capable of operating at sufficient altitude for the aircraft

Unlike automobile engines, aircraft engines run at high power settings for extended periods of time. In general, the engine runs at maximum power for a few minutes during taking off, then power is slightly reduced for climb, and then spends the majority of its time at a cruise settingtypically 65% to 75% of full power. In contrast, a car engine might spend 20% of its time at 65% power accelerating, followed by 80% of its time at 20% power while cruising. The power of an internal combustion reciprocating or turbine aircraft engine is rated in units of power delivered to the propeller (typically horsepower) which is torque multiplied by crankshaft revolutions per minute (RPM). The propeller converts the engine power to thrust horsepower or thp in which the thrust is a function of the blade pitch of the propeller relative to the velocity of the aircraft. Jet engines are rated in terms of thrust, usually the maximum amount achieved during takeoff.

The design of aircraft engines tends to favor reliability over performance. Long engine operation times and high power settings, combined with the requirement for high-reliability means that engines must be constructed to support this type of operation with ease. Aircraft engines tend to use the simplest parts possible and include two sets of anything needed for reliability. Independence of function lessens the likelihood of a single malfunction causing an entire engine to fail. For example, reciprocating engines have two independent magneto ignition systems, and the engine's mechanical engine-driven fuel pump is always backed-up by an electric pump.

Search results for aircraft engine

Aircraft engine - Wikipedia, the free encyclopedia

Aircraft engines are almost always a type of lightweight internal combustion engine. ... engines used in small general aviation aircraft requiring up to 400 ...en.wikipedia.org/wiki/Aircraft_engine

List of aircraft engines - Wikipedia, the free encyclopedia

List of aircraft engines. From Wikipedia, the free encyclopedia ... Salmson B 11 engine crank 90° to propshaft. Salmson C 12 W-12. Salmson C Swash plate engine ...en.wikipedia.org/wiki/List_of_aircraft_engines

GE - Aviation

Headquarters for the production of jet engines, marine engines, turbofans and aircraft engines. ... GE's CF6-80C2 Engine Marks 150 Million Flight-Hours. More News ...www.geae.com/

aircraft engine: Definition from Answers.com

aircraft engine ( ′er′kraft ′enjən ) ( aerospace engineering ) A component of an aircraft that develops ... to-horsepower ratio than other aircraft engines. ...www.answers.com/topic/aircraft-engine-2

Honda Worldwide | Aircraft Engines

Honda Worldwide - Visit the official Honda global web site and find ... GE Honda Aero Engines LLC >Aircraft Engine R&D Center >Honda Aero, Inc. >HondaJet ...world.honda.com/AircraftEngines/

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News about aircraft engine

Microchannel material cuts engine noise

UPI ATLANTA, Oct. 2 (UPI) -- A U.S. research engineer says he's developed microchanneled material that reduces aircraft engine noise through a process called viscous shear.http://www.upi.com/Science_News/2008/10/02/Microchannel_mate...

IndiGo opts for new engine to cut fuel costs

Hindustan TimesCOMMENT ON THIS ! Your Views! Major aircraft engine manufacturer International Aero Engines (IAE) launched its new engine into commercial service with no-frill Indian carrier IndiGo, claiming it would enable considerable saving of jet fuel and reduce costs.http://www.hindustantimes.com/Redir.aspx?ID=c39bf649-fa5a-46...

Microchannel material cuts engine noise

Moldova.orgA U.S. research engineer says he's developed microchanneled material that reduces aircraft engine noise through a process called viscous shear.Noise from commercial and military jet aircraft causes environmental problems for communities near airports, requiring airplanes to follow often complex noise-abatement procedures on takeoffs and landings.But Jason Nadler of the Georgia Tech Research ...http://it.moldova.org/stiri/eng/154473/

Honeycomb-like materials to reduce aircraft engine noise developed

New KeralaWashington, Sept 30 : Engineers from Georgia Tech Research Institute have developed a new honeycomb like materials that can reduce aircraft engine noise more effectively than conventional methods.http://www.newkerala.com/topstory-fullnews-27854.html

IndiGo opts for new engine to cut fuel costs

Chennai OnlineNew Delhi, Oct 2 Major aircraft engine manufacturer International Aero Engines (IAE) launched its new engine into commercial service with no-frill Indian carrier IndiGo, claiming it would enable considerable saving of jet fuel and reduce costs.http://www.chennaionline.com/colnews/newsitem.asp?NEWSID=%7b...

News about aircraft engine

Research and Markets: A Collection of Reports on Aircraft Leasing ...

PR InsideLegal considerations for aircraft engine financiers - Airfinance Journal The diversity of legal issues which apply to aircraft engines is potentially far wider than those which apply to aircraft, writes Daniel French of Freshfields Bruckhaus Deringer ... http://www.pr-inside.com/research-and-markets-a-collection-o...

Lorraine Bolsinger Named President and CEO of GE Aviation Systems ...

MSN MoneyCentralIn 1994 he launched GE Aircraft Engine's Marine & Industrial business across Asia. In 1998 he led GE Energy Services' business in north Asia. Fludder was appointed General Manager of GE Energy Services for the Northeast ... http://news.moneycentral.msn.com/provider/providerarticle.as...

XOJET Signs Citation X Fleet to Rolls-Royce CorporateCare(R)

ForbesCollier Trophy in 1996. In 2007, Rolls-Royce and Cessna celebrated the delivery of an AE 3007 powered Citation X, marking the 5,000th Cessna Citation aircraft. Today, the AE 3007C engine has surpassed two million engine flying hours on the Citation X ... http://www.forbes.com/businesswire/feeds/businesswire/2008/1...

Fire alert aboard Hercules aircraft

StuffAn engine fire aboard a Hercules military plane at Christchurch International Airport has been brought under control by airport staff. Christchurch International Airport spokesperson Chelsea Halliwell said the fire was contained before emergency ... http://www.stuff.co.nz/4717925a11.html

Pratt & Whitney Canada Signs Engine Maintenance Agreement With ...

TMCnetNBAA 2008 - Pratt & Whitney Canada (P&WC) has signed an 11-year Fleet Management Program agreement with private jet charter company JetSuite to maintain its new fleet of PW617F-powered Embraer Phenom 100 aircraft. Pratt & Whitney Canada is a United ... http://www.tmcnet.com/usubmit/-pratt-whitney-canada-signs-en...

Search results for aircraft engine

Aircraft engine - Wikipedia, the free encyclopedia

An aircraft engine is a propulsion system for an aircraft. Aircraft engines are almost always a type of lightweight internal combustion engine. This article is an overview of the ... http://en.wikipedia.org/wiki/Aircraft_engine

GE Aircraft Engines

Headquarters for the production of jet engines, marine engines, turbofans and aircraft engines.http://www.geae.com/

Aircraft - Home

http://www.rotax-aircraft-engines.com/

List of aircraft engines - Wikipedia, the free encyclopedia

Piston engines. Two- and four-stroke rotary, radial, inline. A to E ABC Motors. ABC Dragonfly; ABC Scorpion; ABC Wasp; Aeronca. Aeronca E-113; Aerosport-Rockwellhttp://en.wikipedia.org/wiki/List_of_aircraft_engines

AEHS Home

The Aircraft Engine Historical Society is a non-profit educational and historical society, open to the public, which fosters an appreciation of the people, art, and ... http://www.enginehistory.org/
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Answers for aircraft engi...

Tyler

Aircraft engine?

TylerThe engines of commercial jet aircraft are not mounted ahead of the wing - I have no idea where you came up with that. Next time you have a look at say a B767, you will see that the front of the engi...
julio_slsc

What is smoother, a v6 engine or a water cooled, radial aircraft engine? I know it is nutty question.?

julio_slscAs has been stated, I think you meant "Air-cooled " radial engine, liquid cooled in-line engines. And most are right, the Merlin is extremely loud and runs somewhat rough, those Horses need to go som...
vinay m

Can we use poluyuethane Aerosol materail in the making of aircraft engine parts?

vinay mSince you ask the question, I assume that you are building a plane under the Experimental rule. I don't know in which country you live nor the specific experimental rules for that country but ... do y...
aussiegal

Where can I buy a Rolls Royce Merlin aircraft engine?

aussiegallook in trade-a plane classifieds under war-birds parts. un-airworthy Merlin's can also be found around hydro boat and tractor pull enthusiasts. John Dilly out of Auborn Ind. could probably give you a...
arreaflah_85

how is the turbo propeller for aircraft engine is design? how they designed it's bearing, shaft and gear?

arreaflah_85It is designed through sheer concentration of observing and experimenting. Okay, some sites. Go on some eboards of teachers, especially science teahcers. They have sites which of what you'll ne...

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