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What ratio gearbox?

Old 03-14-2004, 07:48 PM
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Default What ratio gearbox?

I want to spin one of the 3-blade props provided with the Flying Styro Kits on a SPEED 400. What ratio gearbox would be able to handle it? I had a 7.7:1 gearbox for a SPEED 300 that spun the same prop. As far as I have seen, there are no gearboxes of that ratio for the SPEED 400s. Any help will be greatly appreciated.

Old 03-14-2004, 08:28 PM
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Default RE: What ratio gearbox?

A GWS I-gearbox for Speed 400 is 6.33:1 - would that do it? I don't know what the diameter and pitch of that Flying Styro prop is - if I did I'd run it through Motocalc to see what it came up with.

Cheers, Phil
Old 03-14-2004, 08:56 PM
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Default RE: What ratio gearbox?

a lotta people are saying that MotoCalc isn't very accurate
just my $.02

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