Zenith Aircraft Builders and Flyers
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Anti oil canning T-bar on CH 750
To stiffen up to top and bottom skins added T-bar its 1/16 thick-3/4" wide and 1/2" high-riveted every 2" alternating from side to side. Did the bottom first some improvement then the top skin-that did the trick. You can feel buffeting but hear no oil canning.
Comment
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Comment by John Waldrip on July 2, 2024 at 4:23pm
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Bill
Thanks for the clarification. I have ordered some T-bar. Should be in next week. The 801 gets pretty noisy sometimes. especially when lowering the nose on final or base.
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Comment by Bill Alexander on July 2, 2024 at 2:33pm
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John, the T bar runs parallel to the center line, photo is an illusion.
Bill
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Bill
I'm about to add this T bar to my 801. It looks like the short pieces are at an angle. Is there a reason for this that I should be made aware of?
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Joe, the T bar came from Brunner Enterprises.
brunnerent.com
Bill
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Comment by Joe Stephens on February 14, 2024 at 4:23am
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This looks like a great idea, the source for the alum t-bar would be greatly appreciated.
Joe
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Comment by Michael P. Slevin III on January 28, 2023 at 8:27pm
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Thanks Bill, that was the info I got on the SD page also. Still your fix actually looks pretty cool.
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Michael,
My plane is a version1 that does not have the newer cabin roof design. So at a slow high angle of attack the air would separate from the roof and then buffet down on the top of the fuselage somewhat. Do not know for sure but doubt that it is an issue with any of the newer planes with the air foul roof design.
Bill
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Getting ready to start 750 SD build, does anyone know if oil canning is an issue with the SD, and if so has anyone done a mod internally during the build rather than externally after?
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Comment by Terry Watson on February 9, 2020 at 12:32pm
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Bill, where did you get the T-Bars. I think it's my next project.
Terry (twatson47@yahoo.com)
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