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How could I make a Kort Nozzle for a 60mm prop? Answered

I have some thrusters on my ROV that would benefit from a nozzle of some sort. I was thinking of using PVC pipe cut into lengths and then shaped to form the nozzle. I need it to attach to the housing of the thruster, but not impede water flow too much.

Tags:ROVprop

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0
user
gmxx

9 years ago

I build rovs, and we use this flexible plastic stuff, riveted on to a ring of hdpe plastic. you could then use a coupld of strips of metal from the housing to the nozzle guard.

here is an ascii art drawing: the equal signs in the mddle are the bilge pump, and the thing next to it on the right is the prop. The 3 angled slash marks top and bottom are supports, and the dashes coming off the supports is the plastic, the |=| piece is an HDPE ring

/|=|----------
/
/ /
======|\|
\ \
\
\|=|----------

0
user
gmxxgmxx

Answer 9 years ago

dangit... instructables removed all my spacing. ill add a better image in a minute

0
user
gmxxgmxx

Answer 9 years ago

Ok, image attached... it is a cutaway view... sorry for the crappy quality

KORT.png

You can channel these things, but if you want turbojets you really need different impellers. A simple ring around the blades would do it, but jets aren't the same thing. L