There is a small 13' long x 6' wide, 1,000 lbs (total weight of everything) all-fiberglass white pontoon boat with dual flat-bottom fiberglass pontoons. (Each flat pontoon bottom is 2' in width, with an empty 2' space between the two, running the length of the pontoon boat). The boat is in a lake and sits with 2.5" of it being below the waterline. There is a 2 HP electric motor mounted on the back of the boat. It is tiltable and extends beyond the 13' length of the boat itself. Its propeller is on shaft that places it nearly two feet below the water line when submerged.
The boat needs to be driven on to a foam-filled drive-on/drive-off floating dock. The floating dock is secured to a bulkhead at one end and tapers/slopes downward for about a foot at its loading end, where the two pontoon noses of the boat would commence movement on to the dock. The dock has a flat top surface area of 13' x 8' and has 3" of freeboard (i.e., height of dock that is above the water line) without the boat on it. The rigid top surface area of the floating dock has a permanent friction-reducing industrial coating or surface. (The co-efficient of friction would approximate that of outdoor carpeting.)
QUESTION: Will the 2 HP electric motor be sufficient to power/drive the 1,000 lbs, 13' boat on to the floating dock? If so, how much of the computed capacity margin to do so will be needed to do the work?
(1) The 2 HP motor must drive at least 12' of the 13' long boat on to the floating dock. Power is controlled with a throttle handle.
(2) Although the boat could approach the dock with some kinetic energy, moving at 2 or 3 MPH, the worst case scenario is that the boat is static in the water, with its nose only several feet from the sloped end of the dock, before the 2 HP motor starts its attempt to drive the boat on to the dock.
(3) The expanded polystyrene (EPS) foam filled dock is rated to keep up to a 1,500 lbs load entirely above the water line. With a 1,000 lbs boat on it, the dock would still have freeboard of 1".