Shark Bait - K-10 Hydrospeeder DPV. I designed, engineered, and piloted this diver propulsion vehicle for National Geographic. These pictures are from a Nat'l Geo. expedition off the southern coast of Australia to film Great White sharks. I got a little more than I bargained for on this design project. That's me on the left with the "you want me to do what?" look on my face.