After seing a pop bottle recovery boat and a yacht on here some time ago and thought could i build one .
So into the workshop and came up with this ,
basicly its 4 75cl water bottles , a direct drive motor/shaft,brass kort prop(what i had to hand at the time) , battery and radio gear mounted on an alloy board with alloy struts ,well it looked ok on the bench but on the water it sank , so a bit of ballast (styrene foam) and it was ok .Yes it moved under its own power like a submarine , all it wanted to do was either dive or make froth.
So back in the workshop i swapped the 4 small bottles with 3 big ones and ended up with this,
basicly the same set up but a smaller battery and a longer shaft and 2 blade 65mm plastic prop, it went ok , as well as 3 pop bottles can go .
But i still aint happy so the next thing is to get 2 2ltr pop bottles cut and join them together on length and fit the radio motor etc in that with a keel and see what happens .
Still waiting for the tablets to take effect ,
daz