Its only a tiny water Pump but Its got an enormous flow

[Nick GoodeyParticipant @nickgoodey20354]

Yelloe Boat Three 24" V hull jet boat hull number 3 Here is the boat 

Its only a tiny water Pump but Its got an enormous flow.

 

Cooling pump for Yellow Boat 3

 

Testing YB3 in the bath its totally mental on 6 cells 569 Watts flat out nearly emptied the bath should be amusing on the lake, that said at this power level it needs the motor cooling

 

Its made from an old servo motor motor a small brass impeller made from sheet brass and brass tube, soldered onto the pinion. The pinion is then secured with Locktight to the motor shaft. The shaft seal is from a non drip honey bottle glued on the end of the motor.The pump body is a part out of the top of a pump bottle soap dispenser, all held together with epoxy and Fiberglass.

The little pump shifts plenty of flow though the big pipes motor first them ESC a power test will be run to evaluate the performance of the cooling system, and seem to primes its self Ok. There is a rectangular scoop on the outside of the hull to help when the boat is traveling. Having a pump means the temp won't overshoot after a fast run and stop like it would if it were only a scoop or tap from the jet unit nozzel.

 

 

Edited By Nick Goodey on 19/12/2012 10:29:07

Edited By Nick Goodey on 19/12/2012 10:32:37

[Nick GoodeyParticipant @nickgoodey20354]

Water cooling system for 24 inch V hull jet boat

[Colin BishopModerator @colinbishop34627]

Very clever Nick. It looks as if it has potential for use as a bow thruster on a larger model. I assume it is reversible?

Colin

[Author]

Posts