Yep. Somebody's beat you to that as well:I'll try to make a scuba-tank-powered DPV. Imagine an inexpensive DPV, powered by air, rather than shelling-out $3K for an X-scooter. (Range, power, and buoyancy compensation issues: TBD.)
Golden Rock Dive Center | St. Eustatius, Dutch West Indies | Dive Glide