RE: FLYING SAUCER
The counter Rotating Rotor Blades are being used on available Models now.You could use most of the toy except the tail rotor.I think you said you were going to vector the thrust for control.You could cover the rotor blades with your saucer shape making sure to have plenty of air intake on top and vector the bottom side.Just thought I might give you some food for thought? I have re-invented the Helicopter and have a High Performance version nearly complete after getting the Bugs out of the 1st. one.I should have pictures of it in flight soon! Good Luck on the Saucer