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« Last post by Free wing on April 17, 2026, 04:46:01 AM »
I'm wondering is it normal to have the inner distance between the front and back spars as little as 23", also the full wing chord is 44", though I bought my plans very recently (April 2026), also spar dimensions are missing. May someone guide me what to do to correct that
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« Last post by Tom H on April 16, 2026, 05:32:56 AM »
We did install a couple inspection holes on both Leu Treehugger and DE Stubby, one near the inner aileron hinge pin and the other near the wing strut attachment to the wing spar. Pic of aileron area DE inspection hole attached.
During an annual inspection of the DE, I found the aileron inner pivot bolt slightly turning when the aileron was cycled. During construction, this bolt was epoxied in the wood block, and a safety wire was run through a hole in the bolt head and through the wood block. I was concerned that, with enough turning back and forth with aileron movement (many thousands, perhaps?) that the safety wire could break and the aileron pivot bolt could work loose, resulting in a disengaged aileron.
So, I modified the inner aileron attach bolt with a "Z" shaped metal strap, one end welded to the bolt head, the other end secured to the rib with a countersunk screw and elastic nut. Pic of this attached.
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« Last post by Vf24renegade on April 16, 2026, 03:15:33 AM »
Hes got the water drains too and stitching just like my pietenpol
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« Last post by Kamcoman77 on April 15, 2026, 05:42:37 PM »
This LEU has been flying for at least 20 years. Don't know if he's opened up any of the inspection covers, but he has quite a few installed.
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« Last post by Vf24renegade on April 15, 2026, 03:18:10 PM »
What about the spars? Especially at the strut attachments
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Basically, there's nothing to inspect. No cables, turnbuckles, etc. I *did* put one at the ailerons, though.
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« Last post by Vf24renegade on April 15, 2026, 02:50:13 PM »
Has anyone put inspection rings on their bottom wing fabric in order to insoect the spars at annual? Ive not seen any and wondered why. I dont think weight of 4 covers would be a problem or is it another issue of sacrificing some safety to make weight?
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« Last post by Vf24renegade on April 15, 2026, 02:36:33 PM »
If you go with the plexi, you may want to make it removable so you have access to the tube and fittings
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« Last post by Kamcoman77 on April 15, 2026, 07:43:21 AM »
Thanks. I was thinking about a 52D x 18P for a 30 HP that we want to prioritize climb with.
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« Last post by Tom H on April 15, 2026, 05:51:24 AM »
This is going back a bunch of years. I know your engine is a bit larger than ours was, but maybe this info is useful.
I found some notes and the props we used with our 69mm stroke x 90.5mm piston dia half-VW engine, tested to be 29hp using wood bar dyno. Mounted on a bit heavy LEU.
1st prop, Hegy, 54x22, max static was 3090rpm, was very sluggish on hi speed taxi tests, did not fly this one.
2nd prop, mfg unknown, 54x20, max static was 3160rpm, we flew this one. It was barely adequate for me, the heaviest guy around 220 lbs. It seemed to fly well with the lightest guy, about 150 lbs.
Some other notes I found from 2013 - don't know resulting performance of any of them:
- Sam Buchanan, 45 hp Casler, Tenn Prop, 58x24
- Scott Johnson, 78x92 engine, Tenn Prop, 54x24
- Alan ----, Mosler 78x92, ? mfg, 54x24
- Les Homan, Casler 94x86, Tenn prop, 58x24
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