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Old 05-21-2017, 10:34 PM   #21
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Originally Posted by 43-29080 View Post
Bobrath1 was being facetious. I hope.
Only works in a glider where the slipstream is not influenced by a propeller generating air flow perpendicular to the forward movement of the aircraft.

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Old 05-22-2017, 02:27 AM   #22
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Or a pusher aircraft. Even the Wright Brothers used a string / yarn on the Wright Flyers. See at 1:56

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Old 05-22-2017, 07:06 AM   #23
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That's definitely a string. The Wright Brothers hadn't developed the yarn yet

Beautiful film, this must have been from Wilbur's visit to Europe in 1908 and the first aerial filming is said to have been taken in Italy. But you can see how the forward elevator necessitated constant inputs so PIO must have been an issue.

Getting back to the original topic- I think the real explanation you haven't missed the slip indicator is that a reasonably proficient "fliegerarsch" is more sensitive than the balls....

Just (L-)4 fun/ Jörgen
1944 Piper L-4H, shipped to UK july 1944, now dressed as a J-3. Sold as war surplus to Sweden after WW2.

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Old 05-22-2017, 09:10 AM   #24
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The Wright Flyer looks very sensitive in pitch. I'm glad I fly a cub.
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Old 06-19-2017, 01:54 PM   #25
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Flying with a piece of yarn tied to the float wire is only a little "colorful". The bubble indicators are certainly better looking. All true about propwash, but.... Turns out that there is a fair amount of lateral flow when the airplane is flying sideways behind a small Continental at relatively low speeds. Kinda cool, actually. Cheers.

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