British student builds a cheap and efficient underwater jetpack

Archie OBrien, a student at Loughborough Design School in Leicestershire, has always dreamed of gliding underwater at the speed of its original inhabitants. But existing motorized dive packs are either too heavy or slow — and nearly all are prohibitively expensive. Therefore, Archie designed and successfully tested his version of the underwater jetpack.

Initially, the student wanted to take a conventional hydrojet engine and shrink it to the size of a backpack, but quickly abandoned the idea. Instead, he designed a new type of motor, which he immediately patented and therefore keeps the details secret. The device, called the Cuda, could go on sale very soon if OBrien finds investors.

Cuda is known to have 45 parts, all 3D-printed, including the impeller motors that Amsterdams 3D Hubs printed from carbon powder for added strength. Tightness is achieved through a continuous epoxy resin coating, all hatches and buttons have silicone inserts. It is noted that it takes no more than 10 minutes to collect the Cuda from the traveling to the working position.

A portable console is used for control, but the diver performs the main maneuvers by tilting his body. There is no data on the maximum speed and power reserve of the Cuda, but the author of the technology is pleased with the results. He has already tested his knapsack in the pool and in open water, now it is up to the organization of a commercial structure for the production of such devices. Cuda is expected to go on sale in the second half of 2019.