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Old 02-22-2007, 12:21 PM
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
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Default RE: Can you suggest a starting prop

The reason patternflyers use high pitched props is because of noice!
The rules in F3A which is the international name for pattern flying say you must have an airplane/engine combination that will not sound more than a certain db A at a certain distance.

For your .91 fourstroke a 14x6 is good propsize to start with both for running in and for flying.
There are naturally other propsize that will work good too but it all depends on what model you intend to use it in. If it is in a slow flying model a 15x4 or 15x6 APC might be best. In a faster, smaller model a 13x8 or 14x6 APC might be best.