Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

kee-Cat best prop

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Old 03-26-2013, 03:45 PM
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Default kee-Cat best prop

Hello, I am new to fast planes and just put together an inexpensive pusher ARF called Kee-Cat it is a 60 size and I installed a new Super Tiger 75 onit. I picked a few props up to give a try Zinger 12x6 and 12x8 also got a Graupner 11x8, what prop should I start with, Thanks for the advice.
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Old 03-26-2013, 04:06 PM
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Default RE: kee-Cat best prop

The 12-6 is great for bopping around at 70-80mph - it's about halfway between a 3D prop and a fast prop. I would bolt on the 11-8 if you want any speed.
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Old 03-26-2013, 05:36 PM
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Default RE: kee-Cat best prop

have a picture of this plane?
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Old 03-26-2013, 06:00 PM
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Default RE: kee-Cat best prop

Here are a couple pics the 2nd is a heat sheild I made for it the head of the motor is very close to the wing will this help with heat or a waste of time, Thanks Daniel
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Old 03-27-2013, 07:43 AM
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Default RE: kee-Cat best prop

well you already made it..

yes 11x8 pusher prop would be best for that plane.
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Old 03-27-2013, 09:08 PM
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Default RE: kee-Cat best prop

Thanks for all the help, if weather is nice this weekend I'm going to take it up, I broke the engine in today so if all goes well will make it to the field, will give flight report if I fly,
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Old 03-28-2013, 11:19 AM
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Default RE: kee-Cat best prop

Regards the heat shield - doubt you need once it is moving and there is air flow. But it looks cool and the work is done so leave 'er there. You probably don't want to static run a pusher long enough for the radiant heat to be an issue.
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Old 03-28-2013, 04:19 PM
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Thanks, when i broke the engine in I used a standard 12x6 prop to move air over the head to help with heat. Looks like good weather here this weekwend will post how it does.

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Old 04-15-2013, 07:05 PM
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Default RE: kee-Cat best prop

Had time to fly it this past weekend, well I have to say not as fast as I was wishing, but it's a big a plane so it will only go so fast, no radar gun but was not going much over 80mph if I had to guess. The up side is it flew great and I didn't crash it.
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