Thanks Dave, one of the guys have a copy of that book. Great story but absolutely no technical info. We drove up to Algonquin park and had a look at a somewhat restored one.
The slide gears were to disengage the paddles when winching, they used the winch and a large anchor to move the log booms as well as winching overland.
The engine we have has the reversing gear on it as did the one we saw.
Your right Steve, when that happens you have to bar it over centre. Then it should go, the force to move the paddle through the water is
1/2 * density of the water * the square of the velocity * the drag coefficient * the area of the paddle. So it should move the paddle at a very low speed till it builds max torque, then hopefully it has enough momentum to carry itself over the next dead spot.
The slide gears were to disengage the paddles when winching, they used the winch and a large anchor to move the log booms as well as winching overland.
The engine we have has the reversing gear on it as did the one we saw.
Your right Steve, when that happens you have to bar it over centre. Then it should go, the force to move the paddle through the water is
1/2 * density of the water * the square of the velocity * the drag coefficient * the area of the paddle. So it should move the paddle at a very low speed till it builds max torque, then hopefully it has enough momentum to carry itself over the next dead spot.
Free advice is worth exactly what you payed for it.
Greg
Greg