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Indianapolis RC South > Building Tips and Tricks > Engines (Moderators: Fred Whatley, Barb Middleton, jeudaley) > Topic: How to Chose 3 Bladed Props?
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ILv2Xlr8
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« on: November 13, 2007, 09:50:24 PM »
Anyone have any experience choosing a 3 bladed prop for their 2 or 4 stroke engine?

What are the rules of thumb in choosing size and pitch relative to the recommended 2 bladed props?
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jsharp
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« Reply #1 on: December 08, 2007, 10:30:40 PM »
Not sure where I saw/read this; decrease diameter by 1", increase pitch by 1.
Seems to work on a ST 90 this way; 2 blade was 14 x 6; 3 blade is 13 x 8 (closest I could get) and I'm taching 10,000 static. Have not flown w/ this set-up yet, but do not expect to have problems caused by this 3 blade choice. Good luck
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Indianapolis RC South > Building Tips and Tricks > Engines (Moderators: Fred Whatley, Barb Middleton, jeudaley) > Topic: How to Chose 3 Bladed Props?
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