Many times we tried to combine a lightweight, removable motor boats. With the engine oil, so simple and easy to work instantly, the thing is very possible, especially if, instead of a fixed propeller, located under the stern, we use a device reminiscent of sculling. The device known as a "motorcycle sculling" the engine built by Buchet, allows immediate conversion of any ordinary boat motor boat.

The driving mechanism consists of a small engine water circulation, we put the unit on by a crank positioned on the side. The motor shaft extends into a tube ending in a helix with three branches, the rotational movement in the water produces the advancement of embarkation. The outer tube supports at the front, reservoirs and ends with a handle that can maneuver in the hand of the back seat of a boat engine 2 and a half horse gives a speed of 12 km per hour at a canoe 4 meters long fitted by four. The direction of the boat is simply given by the operation of the rod supporting the propeller. Henri Desmarest