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Wing Tips
http://thorp18.com/thorpforum/viewtopic.php?f=3&t=8482
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Author:  copterplt [ Sat Jun 20, 2020 7:56 pm ]
Post subject:  Re: Wing Tips

As someone mentioned I made a set of the Hoerner wing tips and they looked great and added 7/8 kts as test flown along side another Thorp with whom I had flown many times. We had flown side by side at 2350 RPM for many flights and when I flew my Thorp along side his after installing the tips I was able to keep pace at 2300 RPM and pull away Quite good at 2350. We were thinking by 7/8 kts. Also seemed to have more lateral stability as well as a bit slower stall ETC.
Frankly speaking, when you see all these aircraft on the airfield with modified wing tips that go back 20 plus years, theres got to be a reason for that ???????
Before it broke I had a Aymer Demuth 68/75 prop on my 150 hp o-320 and the plane went like hell, because with the dual electronic ignition and 34 dg of advance i was able to turn a prop that big.
I have a copy of the John Evens plans which are from 2003, wish I had seen them early on. If any one wants a copy I'll try to copy and send It via E mail and if unable will mail it out. This is a great project with positive results. I think that it would be much simpler to modify a set from CUBES who has them in stock.

Author:  dickwolff [ Sun Jun 21, 2020 6:35 am ]
Post subject:  Re: Wing Tips

You really can’t make them for what Cubes is asking. Any fibreglass I’ve seen from Thorp Central has been top notch quality.

Author:  speedbird1 [ Thu Oct 01, 2020 7:33 pm ]
Post subject:  Re: Wing Tips

If anyone wants to save some time I have a pair of the standard rounded wingtips that I removed for the Hoerner type. No damage and no lights but they have the buried antennas. $250 the pair. They are from a folding Sunderland wing with wing fuel.
Speedbird 1.

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