Ralph E. Wishart's Blog – August 2012 Archive (1)

750´s stabilizer spars

Hi folks,

I´m about to bend the H-tail feather spars to my plans built 750. The manual gives me a dl for the stabilzer front spar blank of 141mm while the flanges are 20mm and web 107mm. As I suspected the dimmentions didn´t add up when I ran a test piece. I ended up 3 mm short on the web after compensating 1mm for each of the flanges. The next time I tried, I had the web + flanges -2mm compensation for the bend radii (107+(2x20)-2=145 dl) now I am 1mm on the plus side on the web. All…

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Added by Ralph E. Wishart on August 4, 2012 at 2:34pm — 3 Comments

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