A backyard engineering experiment goes wildly off the rails in this clip, featuring two men testing a homemade twin-tank jetpack on an elevated wooden platform. Dressed in a full navy jumpsuit and red helmet, the test pilot stands ready while his assistant finishes adjusting safety straps and puts on ear protection. At 0:38, pressurized gas erupts from the rear thrusters with a loud, violent roar, instantly engulfing the stage in white clouds of vapor.
Instead of a controlled lift, the rig acts like a wild pendulum around 0:48, flinging the pilot through the air in erratic, high-speed arcs as he flails wildly over the platform and near tree branches. Miraculously, he comes back down on his feet on the wooden deck around 1:07. As the fog clears, his assistant casually strolls back over and deadpans, "I think we need a new throttle, mate," just before a female voice off-camera asks at 1:14, "Is everyone alright?"
It has all the classic hallmarks of British amateur stunt comedy, with calm, understated reactions following absolute chaos. Watching someone get catapulted around a lawn on a tethered CO2 rig looks genuinely dangerous, but the assistant's understated commentary at the end makes the entire clip well worth a watch.