https://humanpoweredboats.com/
Human Powered Boats
The term Human Powered Boat or HPB can refer to rowboats, paddleboats, canoes, kayaks, or even rowing shells. We focus on unique and innovative home-built or...
human powered boats
https://www.boatdesign.net/threads/toroidal-propellers-e-g-sharrow-for-human-powered-boats.68232/
Toroidal Propellers (e.g. Sharrow) for Human Powered Boats? | Boat Design Net
Could developments in toroidal propellers help low-speed human-powered boats break the 20kts speed threshold? Toroidal props got a lot of press this...
human powered boatstoroidalpropellersgsharrow