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Thread: A carb heat trick
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Old 14th Jun 2015, 20:16
  #52 (permalink)  
abgd
 
Join Date: Sep 2011
Location: The Wild West (UK)
Age: 45
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The power needed to spin a propeller goes up roughly with the cube of the RPM, so that 4% drop equates to a much greater loss in output - about 12%.

There's also a risk of overheating the engine if you forget to turn the carb heat off.
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