I wanted to use the full thrust of my impeller. As seen in the video of the impeller boat: http://www.thingiverse.com/thing:274054
the high positioned and heavy motor capsized it already with little throttle.
So I took two long boats and put them together to get something like a two hulled boat. The one is allready puplished: http://www.thingiverse.com/thing:284692
The second one is the enlarged impeller boat.
Both needs a bridge to mount the impeller housing which connects the boats.
Actually it needs only one rudder. This should be on the motor boat with the keel.
Of course two bords also need more power. So you can only make speed if you use a pretty strong motor.
Sometimes you hear a sibilant noise. Then splash water comes into the turbine. And at the end there was also some water in the boat :-)
The big advantage: it will hardly capsize ;-)
http://youtu.be/VkcLYyyEtxc
And don't miss to close the stern tube. I used M2 srews covered with heat shrink tube. Otherwise you will not only get splash water into the boat...
| bridge_left.stl | 100.5KB | |
| bridge_right.stl | 100.5KB | |
| bridge_right_plus_3_mm.stl | 100.5KB | |
| impeller_boat_extension_100_mm.stl | 47.5KB | |
| impeller_boat_interface_aft.stl | 92.8KB | |
| impeller_boat_interface_bow.stl | 96.4KB |
