[Graham Boak]

I believe the basic test limitations described above can only a matter of production test flying, and even then some checks on stability and handling would have been included. The matter of spin behaviour will have been covered during the test flying stage under the general heading of handling behaviour (stability and control) as opposed to just performance. A number of types, particularly it seems the lighter twins, suffered major problems in this area - notably the Me 210 and Ar 240, although the Hs 129 has also been mentioned. Certainly such matters had gone far ahead of mere pilot skills.

The Germans certainly had a comprehensive set of airworthiness requirements, with variations for different classes of aircraft (as would be expected). I would expect this to be available to the manufacturers in a similar format the the British AvP 970, but I've not seen reference to anything specific.