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Old Jun 21, 2006, 11:03 AM
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source for tri blade prop.

we're thinking of using a tri blade prop on our AP/UAV for the added torque, quieter, and also the smaller diameter. This is in a pusher config. Can any of you recomend a good source for tri blade props? My LHS's don't carry them, and I want to get some decent quality ones. If you all have tips on using a tri blade prop. please feel free to toss them my way. The plane will be about 30 inch span, weigh around 3-4lbs. and have a little over 900 sq. inches wing area.
I'll have to figure out the right motor/prop. combos.
Thanks and have a good one.
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Old Jun 21, 2006, 04:02 PM
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winnipeg
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Here is a link for a 3-blade hub If you are going electric.

http://www.hobby-lobby.com/freudaccy.htm
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Old Jun 21, 2006, 04:22 PM
Professor of Wood
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Nampa. Idaho
Joined Nov 2004
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Quote:
Originally Posted by Medve
we're thinking of using a tri blade prop on our AP/UAV for the added torque, quieter, and also the smaller diameter. This is in a pusher config. Can any of you recomend a good source for tri blade props? My LHS's don't carry them, and I want to get some decent quality ones. If you all have tips on using a tri blade prop. please feel free to toss them my way. The plane will be about 30 inch span, weigh around 3-4lbs. and have a little over 900 sq. inches wing area.
I'll have to figure out the right motor/prop. combos.
Thanks and have a good one.

Electric or Wet Fuel? What size prop? There aren't many pushers available as three bladed props but I get mine from Tower Hobbies. A reversible motor(brushless electric) gives you more options.

Dan
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Old Jun 21, 2006, 08:36 PM
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328 Posts
sorry, I should have mentioned it was electric. Same one I'm working on 30" wing with tube fuse. Just put this in different thread in case the 2-3 bladed issue was needed by someone later, they wouldn't have to dig through some other post. I'll check those links. Thanks.
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Old Jun 21, 2006, 10:24 PM
Professor of Wood
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Nampa. Idaho
Joined Nov 2004
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It might be hard to find three bladed props optimized for electric motors. It's also more efficient to run a longer two bladed prop than a shorter three bladed one. I do use my three bladed pusher to get more ground clearance. I keep breaking the two bladed wooden ones.

Dan
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