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Cox Engines Forum  :: General Discussion :: Flying Discussions

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Post  oldguy Thu Dec 22, 2016 2:42 pm

Will the .09 medallion fly a 9.6 oz c/L well ?
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Post  Cribbs74 Thu Dec 22, 2016 3:53 pm

Yes, it will be more than enough.
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Post  oldguy Thu Dec 22, 2016 5:43 pm

Thank you Cribb's
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Post  oldguy Fri Dec 23, 2016 1:58 pm

Is a 7 x 3 prop a good starting point for the .09 Med?
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Post  66 Malibu Fri Dec 23, 2016 4:37 pm

Yes.
The 7X3 prop will turn at 15,200 rpm and 15,000 rpm for the Cox 7 X 3.5 prop per The Cox instructions packed with the engine.
Interesting, Cox also states 15,200 for the 6X5 and a maximum of 16,000 for  a 6X4 prop.

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Post  oldguy Fri Dec 23, 2016 5:03 pm

66 Malibu wrote:Yes.
The 7X3 prop will turn at 15,200 rpm and 15,000 rpm for the Cox 7 X 3.5 prop per The Cox instructions packed with the engine.
Interesting, Cox also states 15,200 for the 6X5 and a maximum of 16,000 for  a 6X4 prop.

Steve..


Thank you Steve for that info. Christmas Tree
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