Inverted Limbo:
A ribbon is stretched between poles that are 12' apart and 3' high. Aircraft
cannot touch the ground until the final touch down.  The pilot is permitted
to stand anywhere on the floor. No other persons may stand beyond the flight
line.
[] Take off, [Pass under ribbon inverted],

After each successful round the ribbon will be lowered and all successful
pilots from prior round will repeat flight attempts.

Last pilot to fly inverted successfully under the ribbon at its lowest point
wins!