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Thread: What exactly does a Tacho count?
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Old 21st August 2003 | 13:16
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LowNSlow
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Joined: Aug 2000
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From: Just South of the last ice sheet
dublinpilot as FFF says, unless you are flying a Rotax powered aeroplane or a Cessna 175 (C172 with a geared Continental O-300 engine), your engine rpm is the same as your prop rpm cos it's bolted onto the end of the crankshaft.
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