Working out HP
11-04-2013, 03:18 PM
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Working out HP
Hi All,
I am after the formula to work out HP of an engine. It involved the prop dia/pitch ratio by rpm and an other number. I used to have it but can not find it, any help would be appreciated.
Cheers
I am after the formula to work out HP of an engine. It involved the prop dia/pitch ratio by rpm and an other number. I used to have it but can not find it, any help would be appreciated.
Cheers
11-05-2013, 02:53 PM
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11-05-2013, 07:49 PM
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The late P.E.Rievers created an excellent spreadsheet which calculated HP based on prop size, rpm, temp etc.
I tried to attach it here but the site won't allow me to add .xls or .zip files.
Send a PM if you want a copy.
I tried to attach it here but the site won't allow me to add .xls or .zip files.
Send a PM if you want a copy.
