When did V1, VR, and speed bugs come into use?
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Join Date: Sep 2010
Location: San Diego CA USA
Age: 71
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thanks - this is amazingly specific
Thanks to everyone for this information. Especially to IGH - I am tracking down Joop W's book and article, and indeed they will save me a lot of research! It's interesting that the criteria originated 50 years ago, but at least they are slowly being rethought (judging by what I have read so far).