• Br tag
• Generator
• His tag 1
• Keyword
• Link
• Link popularity
• Meta
• Meta analysis
• Meta search
• Meta tag
• Optimization
• Popularity
• Search engine 1
• Search engine optimization
• Subzero
• Tag
• Tag 1
• The link
• Traffic analysis
• V engine
• W engine
• Web search engines
• Web traffic
• Website promotion

H engine

An H engine can be viewed as two flat engines, one atop the other. The "two engines" each have their own crankshaft, which are then geared together at one end for power-take-off. This leads to a worse power-to-weight ratio than simpler configurations with only one shaft. The only obvious advantage of the H configuration is to allow the building of reasonably short engines with more than 12 cylinders, their compact size being useful as aircraft engines where their small size allows for better aerodynamics - see Lycoming.

The H configuration is therefore very uncommon. Known examples are:

• The BRM H-16 Formula One engine, which was a major failure. This engine was powerful but heavy and unreliable, had low torque and a high center of gravity. Jackie Stewart is believed to have said "This piece of metal is better used as a ship's anchor than as a power plant".
• The Lycoming H 2470 hyper engine.
• The Napier Rapier, Dagger and Sabre airplane engines. Unlike the BRM, the Sabre eventually matured into a superb design.

Also Saab has an 'H' engine designation in the 99 and 900, which is really a 4 in line engine.

Source | Copyright