RE: What is 3D?
DBCherry is the closest... 3D aerobatics describes certain aerobatic moves that can only be performed in stalled and/or thrust vectored flight. However, I'd like to point out that the wing is still VERY important in 3D flight. A common assumption is that stalled wings don't generate lift. This is incorrect... stalled wings still generate lift. This stalled wing lift is critical for most 3D, such as harriers, elevators, parachutes, blenders, etc.