Unless you’re idea of getting a Reliant Robin off the ground involves a giant balloon, odds are you’re not going to be able to generate enough lift while also maintaining control.
There’s a reason why helicopters have two rotors. While the big one on top provides lift and directional motion, the one on the tail pushes the rear of the chopper against the torque of the main rotor, helping you steer properly.
Sure, there are workarounds, such as having two large rotors on top, albeit spinning in opposite directions, but as you can see, the engineering on this Robin isn’t exactly up to aviation standards.
Still, whoever designed the mechanism certainly got it to generate enough lift so as to pick the car up off the ground, but anything beyond that was always doomed to fail, seen as how the only things that provided directional momentum were the pick-up truck, which pulled the Robin along, and a poor excuse for a rudder.
In the end, we’re guessing the people who put all this together had fun, which is understandable. It also wasn’t going all that fast, but even so you never know how this might end up. At least, as you can see in the video that follows, the driver was OK after the impact.