Mike Theo Barry and Surly.
Power boats, motorbikes and two stroke engines. Gardening on clay by putting a raised bed over the clay. Lightweight Linux for old computer.
WW2 minesweeping with wellington bomber “Vickers engineers then removed the bomb racks, bombsight, guns and all unnecessary equipment to reduce weight and free up space for a Ford V8 automobile engine driving a 35-kilowatt Mawdsley electric generator. The former gun positions were faired over to streamline the fuselage. Also, because the magnetic coil rendered normal compasses useless, the Wellington was fitted with a gyrocompass.” https://www.historynet.com/aerial-minesweeping/