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• U engine
  ...gine''' is a [[piston engine]] made up of two separate [[straight engine]] engines (complete with separate crankshafts) joined by [[gear]]s. ...interest in this design is its ability to share common parts with Straight engines.
  944 bytes (139 words) - 16:03, 12 August 2009
• H engine
  ...engines with more than 12 cylinders, their compact size being useful as [[aircraft engine]]s where their small size allows for better [[aerodynamics]] - see [ ...ier|Rapier]], [[Napier Dagger|Dagger]] and [[Napier Sabre|Sabre]] airplane engines. Unlike the BRM and the Lycoming, the Sabre eventually matured into a super
  2 KB (279 words) - 07:43, 15 July 2009
• Opposed piston engine
  [[Image:Opposed_piston_engine_1.jpg|thumb|300px|Fairbanks-Morse opposed piston [[diesel engine]]s on the [[submarine]] ''[[USS Pampanito]]''.]] ...the Opposed Piston or OP designs can use 1 crankshaft like the Doxfordship engines [http://www.oldengine.org/members/diesel/Marine/doxford.htm]
  6 KB (1,020 words) - 07:50, 14 July 2009
• Flat-4
  ...omentum. Flat engines with four or fewer cylinders are most commonly boxer engines. ...] have favored such engines and it is a common configuration for smaller [[aircraft engine]]s such as made by [[Lycoming]] or [[Continental Motors|Continental]
  3 KB (535 words) - 00:27, 8 August 2009
• Flat-H
  ...engines with more than 12 cylinders, their compact size being useful as [[aircraft engine]]s where their small size allows for better [[aerodynamics]] - see [ ===Aircraft engines===
  3 KB (449 words) - 12:23, 15 July 2008
• Radial engine
  [[Image:Rotary_Piston_Engine_8b03590r.jpg|right|thumb|280px|A radial piston engine from [[Continental engine]] is torn down after testing, 1944]] ...craft]] engines before being superseded by [[turboshaft]] and [[turbojet]] engines.
  7 KB (1,042 words) - 00:15, 8 August 2009
• Rotary combustion engine
  ...] for other uses of this term, and [[rotary engine]] for the World War I [[aircraft engine]]s by that name.'' ...'rotary engine''' is an [[internal combustion engine]] that does not use [[piston]]s in the way a [[reciprocating engine]] does, but instead uses one or more
  7 KB (1,137 words) - 20:22, 22 September 2009
• W engine
  ...otorbike]]s. It is this W3 engine which also powered the Blériot XI, the [[aircraft]] used by [[Louis Blériot]] when on the 25th of July, 1909, he made the fi The [[1917]], [[Napier Lion]] aircraft had a first [[W12 engine]].
  6 KB (935 words) - 00:15, 8 August 2009
• X engine
  ...prove [[engine vibration]] characteristics. X-engines were often [[coupled engines]] derived from existing powerplants. ...ns rather than their advantages. Overheating was a perpetual problem for X engines, and a major reason for the failure of the type.
  2 KB (305 words) - 10:26, 8 October 2009
• Flat engine
  [[Image:ULPower UL260i.jpg|thumb|[[ULPower UL260i|UL260i]] [[Flat-4]] aircraft engine]] [[Image:Boxer engine cutaway.jpg|thumb|A cutaway of an aircraft boxer engine.]]
  10 KB (1,551 words) - 10:25, 15 June 2009
• Crankshaft
  ...an [[engine]] which translates [[reciprocate|reciprocating]] [[linear]] [[piston]] motion into rotation. It typically connects to a [[flywheel]], to reduce ...he [[cylinder bore]]. In production [[V engine|V]] or [[flat engine|flat]] engines, neighboring connecting rods attach side by side to the same crank throw, s
  7 KB (1,012 words) - 23:56, 20 September 2009
• Straight engine
  ...fewer [[cylinder head|cylinder heads]] and [[camshaft|camshafts]]. Inline engines are also much smaller in volume than designs like the [[radial engine|radia ...''GM Atlas engine'' family includes straight-4, straight-5, and straight-6 engines.
  4 KB (593 words) - 08:50, 8 October 2009
• Rotary engine
  This article is about a type of piston engine. For internal combustion engines which do not use pistons, see [[pistonless rotary engine]] and [[Wankel eng ...was an early type of [[internal-combustion engine|internal combustion]] [[aircraft engine]], used mostly in the years shortly before and during [[World War I]
  12 KB (2,030 words) - 18:09, 14 September 2009
• Naturally-aspirated engine
  ...urbocharged]] nor [[supercharged]]. Most [[automobile]] gasoline (petrol) engines are naturally-aspirated, though turbochargers and superchargers have enjoye ...high-performance NA engines that benefit from higher [[internal combustion engines|compression]].
  3 KB (403 words) - 10:27, 8 October 2009
• Flathead engine
  ...at has the [[poppet valve|valves]] placed in the engine block beside the [[piston]], instead of in the [[cylinder head]], as in an overhead valve or [[OHV]] ...t's said that such an engine has poorer "breathing". In the early days all engines had poor combustion anyway, so this was a minor concern given the benefits
  3 KB (479 words) - 22:45, 8 September 2009
• Flat-6
  ...wo banks of three cylinders on each side of a central [[crankcase]]. The [[piston]]s are mounted to the [[crankshaft]] such that opposing pistons move back a ...h makes it more suitable for luxury sports cars, cruising motorcycles, and aircraft than ordinary passenger cars.
  8 KB (1,221 words) - 12:10, 11 May 2010
• Napier Deltic
  ...& Son]], and the locomotives produced by [[English Electric]] using these engines, including their [[British Rail DP1|demonstrator locomotive named ''DELTIC' Until this time, diesel engines had poor [[power-to-weight ratio]] and low speed. Before the war, Napier ha
  7 KB (1,154 words) - 23:48, 11 September 2009
• V engine
  [[Image:L V VR6 engines.png|thumb|200px|right|Three types of engine: a — straight engine, b& ...configuration|configuration]] for an [[internal combustion engine]]. The [[piston]]s are aligned so that they appear to be in a V when viewed along the line
  3 KB (481 words) - 09:27, 10 November 2009
• Delta engine
  ...& Son]], and the locomotives produced by [[English Electric]] using these engines, including their [[British Rail DP1|demonstrator locomotive named ''DELTIC' ...ft. Hitherto in the [[Royal Navy]], such boats had been driven by gasoline engines but this fuel is obviously highly flammable and made them very vulnerable t
  7 KB (1,108 words) - 21:43, 26 September 2009
• V12
  ...delivery. In a large, heavy-duty engine, a V12 can run slower than smaller engines, prolonging engine life. ...craft to make a [[transatlantic]] flight, the [[NC-4]], had a set of 4 V12 engines.
  8 KB (1,152 words) - 14:12, 4 August 2009

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