The modification of the Nazi rotary propulsion vehicle, which Gary Hudson dubs the "Roton", will be the basis of the design of the first amateur rocket to make orbit, and this will occur by the year 2000.
See http://yellow.ccs.uky.edu/~danforth/Space_Archives/_Vehicles,_SSTO/SSTO_Helicopter.txt
I will judge based on the wording of the claim unless it is found to be ambiguous. Such ambiguities will be resolved based on my perception of the author's intent.
