Dec 14, 2009, 02:13 AM
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www.dhrc.rchomepage.com Gloucester/Cheltenham Gloucester, Great Britain (UK)
Joined Oct 2004
2,161 Posts
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Keep it large?
May be try keeping the standard configuration rotor size, motor and pinion on 4s (requiring a 4s compatible ESC). Cheaper than shrinking. With a Ricco at 3.2K RPM a max FF of about 70mph should be achievable  (stock is ~50mph) and about 6-7mins of hard flying (depending on pack choice and flying demands). Not very practicle indoors  .
I think the reason why going smaller with increased RPM is appealing because the relative dimensions of the shafts and materials seem to better handle the faster rotating smaller rotor mass. Where as increasing the stock size rotor past 3K rpm does require good balancing and the tail may be less possible to balance tune due to the relative forces involved on the materials in use.
But when shrunk, the weight of the components will be more noticeable on performance and handling on a smaller disk and expect a lot more problems to pop out of the wood work.
Would be interested to see whatever you try  .
Edit: I see I probably missed the point  . Yes try it.
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Last edited by DarkHorse; Dec 14, 2009 at 02:20 AM.
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