Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

A Speed NOMOGRAPH for you all to use

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Old 09-13-2009, 02:42 AM
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mk1spitfire
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Default A Speed NOMOGRAPH for you all to use

Some may have seen before,appologies.
Fellow speeders,useful graph for calculating estimated speed(excluding plane drag) from desired prop and static rpm. Just run a straight line accross rpm and pitch to get speed.

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Old 09-13-2009, 09:07 PM
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MJD
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Default RE: A Speed NOMOGRAPH for you all to use


ORIGINAL: mk1spitfire

Some may have seen before,appologies.
Fellow speeders,useful graph for calculating estimated speed(excluding plane drag) from desired prop and static rpm. Just run a straight line accross rpm and pitch to get speed.

Mk1
What good is that? The rpm scale only goes to 25k.



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Old 09-14-2009, 05:11 AM
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Ha, yer and speed only 500... !!!
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Old 09-14-2009, 01:25 PM
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Mike Connor
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Default RE: A Speed NOMOGRAPH for you all to use

Published in "Model Airplane News" in the June 2001 issue.
The article was written by Andy Lennon and the title is "Choose the right prop for your engine".
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