Hi there ,
William Fraser used to be at H4H, moved to Port Elizabeth a few years back, running a big CNC router in the back room.
He's an aero-engineer, very involved with the design/manufacture of SA's "Sling" planes but now mostly builds boats, sails well and fishes even better.
William started a youtube channel of his exploits, not least... being a series how to build a Kayak from single sheet of plywood. Good watching.
Recently he built a waterproof underwater motor-drive onto his home-built kayak, and kitted it out with solar panels and some pontoons.
Every year NMMU has a race for such electric boats on inland water. This year, William put in a good showing on his first attempt.
Enjoy!