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Unread 16-08-2012, 14:00
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Re: using model aircraft digital optical tach on full sized aircraft

From a technical stand point it should work. You might need to put some reflective tape on your propeller. As others have said the FAA may not approve & I would be hesitant to depend on it in a life critical way.

I think the point that Alan was trying to make that even with reduction, the engine speed is directly related to the propeller speed. I have never heard of anybody using a CVT on a plane.
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