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General control line discussion => Open Forum => Topic started by: bob whitney on June 02, 2016, 11:05:18 AM

Title: 15-4 super thrust
Post by: bob whitney on June 02, 2016, 11:05:18 AM: anyone have any experience with a Super thrust 15-4 looks like a big old Top Flight ,could do it in Carbon
Title: Re: 15-4 super thrust
Post by: FLOYD CARTER on June 02, 2016, 01:13:55 PM: Please give a few examples where a 15 inch prop would be useful in CLPA.

Now, a decent 13-4 might get a few customers.
Title: Re: 15-4 super thrust
Post by: Motorman on June 02, 2016, 01:19:43 PM: 3D prop
Title: Re: 15-4 super thrust
Post by: Jeff Traxler on June 02, 2016, 01:54:41 PM: Quote from: FLOYD CARTER on June 02, 2016, 01:13:55 PM
Please give a few examples where a 15 inch prop would be useful in CLPA.

Now, a decent 13-4 might get a few customers.
I am making a nice 13x5 CF prop these days.It's from my "Billy's Toolbox" collection.Actually I am making several different CF props for Mr.Werwage and this is the only one I have permission to sell to others......so far.I am working on a proprietary 3 blade for him and Chris Rud and will be making molds for several more props that the master came right out of Billy's toolbox.I'm thinkin' if Mr Werwage worked it over and did the testing it has to be good!
Title: Re: 15-4 super thrust
Post by: bob whitney on June 02, 2016, 03:10:09 PM: i have a nice 13.75x4 two blade
Title: Re: 15-4 super thrust
Post by: Dennis Toth on June 02, 2016, 04:02:34 PM: Bob,
Windy had a bunch of these. He gave me some 12x5's that I used on my OS 52 four stroke. They are a decent prop and very stiff. Don't know if the 15x4 would work on common length landing gear.

Best, DennisT
Title: Re: 15-4 super thrust
Post by: Brett Buck on June 02, 2016, 05:12:25 PM: Quote from: FLOYD CARTER on June 02, 2016, 01:13:55 PM
Please give a few examples where a 15 inch prop would be useful in CLPA.

Now, a decent 13-4 might get a few customers.

Well, a lot of people still use older methods, where the way to get more performance was to increase the diameter. That used to be true, but it isn't any more. I know for certain that competent and well-known modelers have in the recent past used 16-6 2-blades.

I don't think there is any way that you will get that to corner in a way necessary to compete at the highest levels, but you can make it work to some degree.

Brett
Title: Re: 15-4 super thrust
Post by: Motorman on June 03, 2016, 08:34:28 AM: ::)
Title: Re: 15-4 super thrust
Post by: Paul Walker on June 03, 2016, 02:35:02 PM: Please, please, please, every Nat's contestant, other than me, please use a 15" prop. Your results may vary. ::)
Title: Re: 15-4 super thrust
Post by: Mark Scarborough on June 03, 2016, 02:52:26 PM: Quote from: Paul Walker on June 03, 2016, 02:35:02 PM
Please, please, please, every Nat's contestant, other than me, please use a 15" prop. Your results may vary. ::)
Paul, maybe if you provided them with a sample to try during qualifications day? H^^
Title: Re: 15-4 super thrust
Post by: Brett Buck on June 03, 2016, 05:11:14 PM: Quote from: Paul Walker on June 03, 2016, 02:35:02 PM
Please, please, please, every Nat's contestant, other than me, please use a 15" prop. Your results may vary. ::)

Actually, I think the results might not vary all that much.

Brett
Title: Re: 15-4 super thrust
Post by: Paul Walker on June 03, 2016, 06:02:38 PM: Quote from: Brett Buck on June 03, 2016, 05:11:14 PM

Actually, I think the results might not vary all that much.

Brett

Vary.....as in their actual performance might not be what they expected.