Saturday, 12 January 2013

Thruster Kort Nozzle

I've just tried out a proper Kort nozzle on my thruster and it seems to work a treat, definitely more consistent thrust above 1kg, I did see over 2.3kg on the fish scale, equating to about 1.15kg from the thruster, but here's a shot of 2.22kg, or just over 1.1kg at the propeller.

Here are a couple of pictures of the new Kort nozzle mounted to the thruster.

It's a lot closer fit around the propeller than the shroud I made earlier, which is probably increasing the thrust.
Next step is to manufacture a mount for the thruster itself, so I can attach it to the frame of the ROV..... it's still only in "Martin's 3D World" at the moment, and unfortunately so is the frame of the ROV for that matter :)

Friday, 4 January 2013

ROV Block Diagram

Happy New Year!

Just thought I'd post a small block diagram to show my ideas with regards to the intended ROV build ...... as of today anyway ;)



Trying to keep it as simple as possible really, with a topside PC running the GUI, a USB joy pad to control the ROV and a USB to RS485 converter to communicate with the "Intelligent Thrusters".

Whether the +24VDC comes down the umbilical or is provided locally on the ROV by batteries will probably depend on what umbilical I can source.