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#1
posted to rec.boats
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approx outboard speeds question
16’ Wahoo with a 90hp Suzuki 4 stroke and 23” SS Prop?
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#2
posted to rec.boats
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approx outboard speeds question
On Sun, 31 May 2020 15:03:51 -0700 (PDT), wrote:
16’ Wahoo with a 90hp Suzuki 4 stroke and 23” SS Prop? ~45 ? |
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#3
posted to rec.boats
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approx outboard speeds question
wrote:
On Sun, 31 May 2020 15:03:51 -0700 (PDT), wrote: 16’ Wahoo with a 90hp Suzuki 4 stroke and 23” SS Prop? ~45 ? 23” per revolution, 4000 rpm, doesn’t that work out to a little over a 1000 mph?  |
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#4
posted to rec.boats
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approx outboard speeds question
On Mon, 1 Jun 2020 00:45:19 -0000 (UTC), Bill
wrote: wrote: On Sun, 31 May 2020 15:03:51 -0700 (PDT), wrote: 16’ Wahoo with a 90hp Suzuki 4 stroke and 23” SS Prop? ~45 ? 23” per revolution, 4000 rpm, doesn’t that work out to a little over a 1000 mph? Actually a little over 50 MPH at 6000 RPM (minus the slip) DF90A WOT RPM should be 5300-6300 with a 2.59 gear reduction. When you do the math you end up around 50. 10% slip gets you 45. |
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