1978 - White Tailed Dart v1 flown by Larry Mansberger at Warren Dunes in Bridgeman, MI.
"the luffing occilation from the wing tips must accelerate ahead of the glider like the crack of a wip and arrive ahead of the c/g so it is virile and not earthing into the pilots mass divergent [womans gent]imputant ..this we find happens after the nose angle is greater than 130 degrees hence modern gliders all have 130 degrees or less but since you have gone over this you need a small activating cannard so your tail can come alive and its incidence to counter the pitch .. skeatesy" --skeatesy, 02/07/14
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