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Re: using model aircraft digital optical tach on full sized aircraft
My point was that even with speed reduction, it is a constant. So if you know one RPM you know the other.
Fixed reductions are pretty common. CVTs (constantly variable transmission) is the red herring since I do think they get used on planes. I should watch putting too many thoughts in one paragraph.
Lycoming IO series engines are direct direct drive though
Last edited by FrankJ : 16-08-2012 at 15:33.
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