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Warp Drive Hub

 
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Guy Buchanan
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Joined: 16 Jul 2006
Posts: 1197
Location: Ramona, CA

PostPosted: Sat Oct 14, 2006 8:54 am    Post subject: Warp Drive Hub Reply with quote

All,
Donny, one of the locals, suggested that I was over-propped and
that was why my performance was off. (I'm running a 70" Warp 3-blade on my
Rotax 582 with a 3:1 "C" box.) He suggested I go to two blades, or change
the ratio to 3.47:1. Toward that end, I'm looking to see if anyone has a
Warp two blade hub or some 3.47:1 "C" box gears that I might beg/borrow/buy.

Thanks,
Guy Buchanan
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.


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PostPosted: Sat Oct 14, 2006 9:47 am    Post subject: Warp Drive Hub Reply with quote

Not sure what aircraft you're using this on, but by way of comparison I have
seen a 72" 3-blade Warp Drive used with 582 and C-box (3:1) on an Avid
Speedwind. It worked well.

The difference may have been in the backtaper on hte blades, which was
fairly extreme such that the chord length at hte tip was only about 1".
However, Warp Drive themselves set this up. So it might be worthwhile asking
them.

Duncan McF.
---


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Roger Lee



Joined: 10 Jan 2006
Posts: 1461
Location: Tucson, Az.

PostPosted: Sun Dec 10, 2006 7:49 am    Post subject: Re: Warp Drive Hub Reply with quote

Hi,

You do not mention what your max rpm is proped to. You should not have too large a prop, just make sure you are getting the correct max rpm for your engine.


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