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BoS Stall Comparisons


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#1 Barton

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Posted 12 April 2017 - 02:54 AM


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#2 danudet

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Posted 12 April 2017 - 03:19 PM

Just one word of note, during the late 30's, 40's and early 50s, all the countries were experimenting with different wing configurations.  While in flight school, Aero-Physics, we were discussing some of these issues and experimentations.  I would have to find my notes on this to know 100%,  but one of the German fighters (could have been the 190?) was designed with a slightly different, angle of Incidence on one wing, which would change the angle of attack of that wing, causing the airplane to stall on the same wing, no matter the attitude.  When I saw your stall tests of the 190, it reminded me of that discussion in class, and the pros and cons of the idea.  What I saw in both cases with the 190 (BoS/DCS) was in the left turn stall, the airplane did rotate around the CG, kinda weird, but again I'd have to find my A-P notes.


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#3 danudet

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Posted 12 April 2017 - 03:43 PM

In regards to a FW 190 allied flight test in 1944:

"A good dogfighter and a good gun platform called for just the characteristics that this German fighter possessed in all important matters of stability and control. At the normal cruise of 330 mph (530 km/h) at 8000 ft (2400 m), the stability was very good directionally, unstable laterally, and neutral longitudinally."


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#4 danudet

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Posted 12 April 2017 - 03:48 PM

The stalling speed of the Fw 190A-4 in clean configuration was 127 mph (204 km/h) and the stall came suddenly and virtually without warning, the port wing dropping so violently that the aircraft almost inverted itself. In fact, if the German fighter was pulled into a g stall in a right turn, it would flick out into the opposite bank and an incipient spin was the inevitable outcome if the pilot did not have its wits about him.


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#5 danudet

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Posted 12 April 2017 - 03:59 PM

The perceived rotation around the CG in external view, would be explained in the last quote from the book, its probably the start of an incipient spin.


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