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

rpm question?

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Old 08-09-2008, 09:21 PM
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zero-cool
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Default rpm question?

I got an old picco 40 se.with low run time on rcu.it looks like a rossi 45 too me.it is taching 15,500 with an apc 9x7 is that a better then a os 46ax will turn with the same prop? not sure what engine I should use for my mach racer delta
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Old 08-09-2008, 10:47 PM
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combatpigg
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Default RE: rpm question?

15,500 with a 9x7 is enough to have a good time, but nothing to write home about. It will fly the Mach racer OK.
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