Pietenpol-List: cabane brace diagonals

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Pietenpol-List: cabane brace diagonals

Post by matronics »

Original Posted By: "Jack Philips"
Marcus=3BThe reason why the Grega does not have the diagonals is because of the geometry of the wing attachments at the top of the cabanes. The Pietenpol Air Camper wing can pivot on the four cabane struts so it either needs cable X-braces between the side cabane struts or diagonal braces to restrain everything from pivoting. The Grega Aircamper mounts the wing to the cabane struts with the bolts inserted longitudinally=2C so there is no pivoting of the wing.To see the effect on adjustable braces when you put an Air Camper over on its back=2C here's what 41CC's braces looked like after it happened: http://www.flysquirrel.net/piets/incident/PB130010.JPG . Once the assembly yields at any point=2C it folds up like a two dollar suitcase=2C thus the emphasis on connecting the diagonals to the uprights rigidly.Oscar ZunigaMedford=2C ORAir Camper NX41CC "Scout"A75 power ________________________________________________________________________________
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RE: Pietenpol-List: cabane brace diagonals

Post by matronics »

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Oscar, that is the reason I elected to replace my "adjustable" diagonalswith more rigid onesJack PhillipsNX899JPSmith Mountain Lake, Virginia
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Re: Pietenpol-List: Re: cabane brace diagonals

Post by matronics »

Original Posted By: Steven Dortch
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________________________________________________________________________________Date: Wed, 23 Mar 2016 12:41:28 -0500Subject: Re: Pietenpol-List: Re: cabane brace diagonals
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RE: Pietenpol-List: cabane brace diagonals

Post by matronics »

Original Posted By: Marcus Zechini
Subject: RE: Pietenpol-List: cabane brace diagonals
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Re: Pietenpol-List: paul's build

Post by matronics »

Original Posted By: Steven Dortch
Jack got it right. It is =9CSimplicate and add lightness.=9D Regardless, the message is the same.According to Tom Foxworth=99s book The Speed Seekers, page 82, the above quote is attributed to William (Bill) Bushnell Stout and was his lifelong doctrine.Bill Stout was responsible for the design of the all-metal Ford Trimotor transport.Cheers,Graham Hansen (builder of Pietenpol CF-AUN which I flew for nearly 43 years before donating it to a museum)
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Re: Pietenpol-List: paul's build

Post by matronics »

Original Posted By: Steven Dortch
Subject: Re: Pietenpol-List: paul's build
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