RC Jet boat pump

thingiverse

This Jet Pump was built to upgrade an old R/C boat I own, with a massive impeller diameter of 26mm that's way oversized for its tiny scale. The intake features clever Intake strakes that prevent pond weeds from getting sucked in, carefully designed around the input shaft in a snug brass sleeve just 5mm thick. The nozzle has a sharp turning angle of 50 degrees and relies on a sturdy 1.5mm steel pin that's 40mm long to pivot and control its direction precisely.