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6x4 "rubber ducky" propeller source? Babe_b10
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6x4 "rubber ducky" propeller source? Empty
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6x4 "rubber ducky" propeller source? Empty 6x4 "rubber ducky" propeller source?

Post  pkrankow on Mon Dec 17, 2012 10:36 pm

I have a couple Tornado 6x4 yellow (nylon?) propellers that I fly. One is on my Lil Wizard and the other is on my Jumping Bean. I have switched them to some available propellers to see what the performance difference is on these two planes, but more so on a coroplast wing I have been flying.

Compared to any other crash resistant propeller I have, the Cox "rubber ducky" 5x3 yellow safety tip, 5x4, 6x3...not even similar performance, the Tornado 6x4 is much better at pulling these 3 aircraft.

Now, if it wasn't for hard landings and lack of landing gear on my fleet I would consider the Master Airscrew 6x4 which pulls even better, but even with the prop feathering straight with the wings a soft belly landing can break the prop in "tall" grass. "Tall" being "It Could Stand To Be Mowed" tall, and most assuredly not "I Can't See My Feet" tall. A hard belly landing is a new prop, even with no other damage to the plane or lawn.

So: Where can I buy 6x4 "rubber ducky" or otherwise crash resistant props?

Phil
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Post  Mark Boesen on Mon Dec 17, 2012 11:13 pm


Tornado used to make a white 'rubber duck' prop not to long ago, you might find one at a hobby shop or on line. I also think Cox International has soft props as well. I'm not a big fan of safety tips, there safer, but also loose some RPM. Unless your running a Tee Dee, I'd think you'd be better of with a 6x3 or 5.5x3?


Last edited by Mark Boesen on Tue Dec 18, 2012 12:00 am; edited 1 time in total
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Post  JPvelo on Mon Dec 17, 2012 11:38 pm

I've been using old top flite and tornado white nylon props when I can find them and they outperform any currently available prop I can find. I wonder if Bernie or Matt have ever looked into the production of this type of prop? (hint hint)
Jim
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Post  pkrankow on Tue Dec 18, 2012 8:26 am

JPvelo wrote:I've been using old top flite and tornado white nylon props when I can find them and they outperform any currently available prop I can find. I wonder if Bernie or Matt have ever looked into the production of this type of prop? (hint hint)
Jim

Yes. Hint hint...

I suspect demand is related to supply. If nobody demands, nobody knows to supply.

I noticed ExModelEngines.com (Matt) has Cox original stock 6x4 grey competition propellers, but I don't know if these are the more pliable props or not. I might just order a couple after Christmas.

I'll start searching for the Top Flite white nylon props as well. It is not like color is very important, although I do feel partial to the yellow.

Phil
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Post  EXModelEngines on Tue Dec 18, 2012 8:41 am

JPvelo wrote:I've been using old top flite and tornado white nylon props when I can find them and they outperform any currently available prop I can find. I wonder if Bernie or Matt have ever looked into the production of this type of prop? (hint hint)
Jim

Jim,

Yes, the Top Flite props perform quite well, but there would be a substantial investment needing is making the molds. Given the other props that are currently available, it would be a lot of money to allocate to a project like this.

Matt
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Post  EXModelEngines on Tue Dec 18, 2012 8:43 am

pkrankow wrote:
JPvelo wrote:I've been using old top flite and tornado white nylon props when I can find them and they outperform any currently available prop I can find. I wonder if Bernie or Matt have ever looked into the production of this type of prop? (hint hint)
Jim

Yes. Hint hint...

I suspect demand is related to supply. If nobody demands, nobody knows to supply.

I noticed ExModelEngines.com (Matt) has Cox original stock 6x4 grey competition propellers, but I don't know if these are the more pliable props or not. I might just order a couple after Christmas.

I'll start searching for the Top Flite white nylon props as well. It is not like color is very important, although I do feel partial to the yellow.

Phil

Phil,

The gray competition props are more rigid (and less bendable) that the black ones or yellow that are currently available.

Matt
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Post  pkrankow on Tue Dec 18, 2012 8:55 am

Thanks Matt. I think I will order a pair after Christmas (but not a half dozen).

Phil
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Post  Surfer_kris on Tue Dec 18, 2012 11:22 am

The cox grey ones break very easily. The master air screw ones are fine though, I've never broken one in a landing.
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