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Oscar Grassle's 160HP 235/320 would go 240mph/208.5k
at 3150rpm at 5500' dalt with my two-blade design; that's what you would expect
with a 187HP engine at 2700rpm. It would also go 233mph/202.4k at 3090rpm
at 10,000' dalt, or the equivalent of 183HP engine at 2700rpm! These numbers
were verified with a GPS on two-way runs. At 1000' dalt, it would go
242mph/210.3k at 3200rpm, the same as a 189.6HP engine at
2700rpm.
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