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8 Cards in this Set
- Front
- Back
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How is engine cooling accomplished on a rotorcraft equipped with an air cooled reciprocating engine? |
Large belt driven cooling fan |
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What should be done to a cylinder with an excessive amount of the cooling fins broken off in a given area? |
Cylinder should be replaced |
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What could happen to a reciprocating engine if it was operated at high throttle settings for long periods of time with a cooling baffle missing or broken? |
The cylinder with the missing baffle will have higher than normal temperature |
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What is an augmenter cooling system? |
Stainless steel tube that uses exhaust gasses to produce a low pressure on one side of the engine that helps pull cooling air through it |
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What is the approximate percentage of air passing through a turbine engine that is used for cooling rather than combustion? |
75% |
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What is the purpose of the cowl air seals? |
to seal air in so its forced to cool the baffles and heads |
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What drawback when using collector-type exhaust systems is more than offset when used on turbocharged engines? |
On turbocharged engines, the collector-type exhaust system raises the back pressure of the exhaust system; however, the gain in horsepower offsets the loss in horsepower that results from increased back pressure |
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What happens to waste engine heat after it is transferred to a cylinder's cooling fins? |
The fins dissipate the heat |
