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Forum: Gas Engines

07-29-2013, 10:36 PM

Replies: 226

O.S. GF40 4st gas

Views: 91,245

Posted By AeroFinn

RE: O.S. GF40 4st gas

Ok thanks!

Have you tried, by ever chance, any 19x8 prop?

Forum: Gas Engines

07-29-2013, 02:21 PM

Replies: 226

O.S. GF40 4st gas

Views: 91,245

Posted By AeroFinn

RE: O.S. GF40 4st gas

Congrats for the maiden!

Did you measure the thrust with a fish scale? What was the peak rpm?

Forum: Gas Engines

07-19-2013, 10:35 AM

Replies: 226

O.S. GF40 4st gas

Views: 91,245

Posted By AeroFinn

RE: O.S. GF40 4st gas

And preferably a twin cylinder version..

Forum: Gas Engines

07-06-2013, 10:49 PM

Replies: 226

O.S. GF40 4st gas

Views: 91,245

Posted By AeroFinn

RE: O.S. GF40 4st gas

I still do not get it how some people get 8200 rpm with an 18X10 CF prop while others get 7700-7900 rpm on a wooden prop? Even though carbon props are much more efficient there's still a 2 inch...

Forum: Gas Engines

06-24-2013, 10:45 PM

Replies: 226

O.S. GF40 4st gas

Views: 91,245

Posted By AeroFinn

RE: O.S. GF40 4st gas

Hi Mark

Are you sure about the Mejzlik? So is it really an 18x10 and not an 18x8? I'm asking as you got 7900 with Xoar 18x8 so a couple of hundreds rpm more with a same size CF prop is what you...

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