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From: Simon Wright <simon@pushface.org>
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Subject: Re: Boeing 737 and 737 MAX software
Date: Thu, 18 Apr 2019 14:50:21 +0100
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tranngocduong@gmail.com writes:

> In the crashed Ethiopian 302 aircraft, ~30 seconds before impact, the
> nose points 40 deg. toward ground, and the AoA indicates 75 deg. As 40
> + 75 = 115 > 90 deg., this would imply negative airspeed.

I think that if it implied anything it would be that the speed over the
ground was negative and the aircraft was descending extremely
rapidly. Neither of which is impossible.

But, as Maciej hs been saying, what makes you think that this
caluclation was ever performed?