Rc Boat
thingiverse | Free
CAD model: https://grabcad.com/library/rc-boat-7prop and shaft (007):https://ru.aliexpress.com/item/Boat-4mm-Stainless-Steel-Ship-Shaft-Drive-Shaft-Two-Blade-propeller-Copper-Shaft-Sleeve-Gasket-set/32561651297.html?spm=a2g0s.9042311.0.0.274233edDnEezMBattary ...