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Old 03-21-2006 | 12:59 PM
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Default RE: Different between 4 cycle prop an 2 cycle props??
Noisy props are caused by several things. Too much RPM, blade shape, tip shape and a small host of others though the 3 I mentioned are most common.

Master Airscrew props are amongts the loudest around followed by Zinger. Both flex allot so are also somewhat inefficent. For glow engines 18 inch and below I'd stick with APC. Tons quieter and much more efficent
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