Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
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copterplt
 Post subject: Re: Wing Tips
PostPosted: Sat Jun 20, 2020 7:56 pm 
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Joined: Tue Oct 27, 2009 12:38 am
Posts: 21
Location: USA
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.


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dickwolff
 Post subject: Re: Wing Tips
PostPosted: Sun Jun 21, 2020 6:35 am 
Sr. Member
Sr. Member

Joined: Tue Nov 24, 2009 7:40 pm
Posts: 489
Images: 6
Location: Canada
You really can’t make them for what Cubes is asking. Any fibreglass I’ve seen from Thorp Central has been top notch quality.


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