Check out the proto type RCD (Remote Control Dolly) This unit was made with (2)...

Check out the proto type RCD (Remote Control Dolly)
This unit was made with (2) wheel chair motors, 2" aluminum frame, 1/2" plywood and gum rubber sheets. It was designed (over engineered) for 1/6-1/3 helicopters. Others custom sizes will be available to fit your weight, size and specific needs.

Design - Heli Workshop
Fabrication - Unique Aircraft
Specifications:
Size - 48"x 48"
Weight - 60lbs
Capacity - 300lbs
Motor - (2) wheel chair
motor controller - Saber tooth 2x60
Battery - (2) 6S lipo - parallel
RC - mini 4 channel car radio 2.4 HZ

https://www.youtube.com/watch?v=OrznvPttobs
https://www.youtube.com/watch?v=0lJFiFtYQbE
https://www.youtube.com/watch?v=dBImNRddtuU&t=1s
https://www.youtube.com/watch?v=cjjCx36HfIE