I reduced the piston-prop to only a few parts and recollected the mass properties and came up with this :) I started just playing around and ended up with a very unique forced air movement of up to 33-34mph with 2 small pistons and 32klb vehicle :P Not sure what else to do with it, as it has been modified to work the way it does quite well only as a user-tonrolled vehicle for strolling per-say. But, the concept is quite endless in design ideas! Will do more with this is possible.

Yaw turns and throttle makes the pistons move the blades. THe direction of the blads have to both rotate inward for forward movement, and outward goes backwards, but it was not designed for outward. Issues, hold throttle down and press b to restart throttle and repeat if needed to get both blades facing inward. A fix to this is to add rotators for the blades (remind me and ILl do that). Want to make it faster, though the design has to be completely modded but any ideas Im game :)