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canadianice · 09-15-2011, 05:27 AM

I need to know how big of a 3 bladed prop I can put on my Supertiger 90
thanks in advance Jeff.
Ps its going on a topflite P 39 aircobra weight is 9 lbs. 5 oz.

Crass · 09-15-2011, 06:28 AM

take the largest 2 blade you can run then drop the diameter by one
so it its a 13-6 than an 12-6, 3 blade is the biggest .

DO335 · 09-15-2011, 07:03 AM

Starting point is usually drop diameter one size and increase pitch one size.

For instance, my OS FX 1.60 usually worked best with a two blade 18-8 or a 3 blade 16-10 prop.

You still need to experiment to achieve the optimum set up for your particular application.

Crass · 09-15-2011, 12:05 PM

here is a chart for 2 to 3 to 4 blade put out by zinger.

09-15-2011, 05:27 AM	#1
canadianice RCC Master Contributor I am: jeff t Join Date: May 2004 Location: london ontario Radio of choice: Specktrum DX18 # of RCs: 15 Feedback: 10 / 100% Posts: 1,242 Total Props: 12	how big a three bladed prop Remove this ad - become a site supporter! I need to know how big of a 3 bladed prop I can put on my Supertiger 90 thanks in advance Jeff. Ps its going on a topflite P 39 aircobra weight is 9 lbs. 5 oz. __________________ Green side is definitely not up
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09-15-2011, 06:28 AM	#2
Crass RCC Junior Contributor I am: Steve P Join Date: Sep 2008 Location: Winnipeg MB / St John's NL Radio of choice: SpeKtrum # of RCs: 19 Feedback: 6 / 100% Posts: 138 Total Props: 0	Re: how big a three bladed prop take the largest 2 blade you can run then drop the diameter by one so it its a 13-6 than an 12-6, 3 blade is the biggest .
	.

09-15-2011, 07:03 AM	#3
DO335 RCC Pro Contributor I am: Cheshire C Join Date: Jan 2004 Location: Newmarket Ontario Feedback: 23 / 100% Posts: 1,586 Total Props: 6	Re: how big a three bladed prop Starting point is usually drop diameter one size and increase pitch one size. For instance, my OS FX 1.60 usually worked best with a two blade 18-8 or a 3 blade 16-10 prop. You still need to experiment to achieve the optimum set up for your particular application.
	.

09-15-2011, 12:05 PM	#4
Crass RCC Junior Contributor I am: Steve P Join Date: Sep 2008 Location: Winnipeg MB / St John's NL Radio of choice: SpeKtrum # of RCs: 19 Feedback: 6 / 100% Posts: 138 Total Props: 0	Re: how big a three bladed prop here is a chart for 2 to 3 to 4 blade put out by zinger. Attached Thumbnails
	.

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