Wondering if there are some outboards well suited to a 10' sailing dinghy. Honda used to make a 2 hp lightweight, but the current model is more powerful and heavier. The idea of hanging 30 lbs on a motor mount projecting behind the transom of this tiny boat, which you sail from the stern anyway, does not seem like the best solution.
On the net I found some small, probably Chinese manufactured outboards here: http://www.smalloutboardengines.com/
and here: http://www.ioutboardmotors.com/20hp-4-cycle.html
These might be sites from the same company. The motors are small and light at about 18 lbs, but I wonder about their track record, reliability.
I also looked at Torqueedo (too costly) and Electric Paddle, which is more reasonable but still a substantial expense. The beauty of the Electric paddle is that it only weighs about 8 lbs.
Finally, I have thought about using a trolling motor, either with a battery or in combination with a small generator mounted forward in the boat. Here is one example. http://salestores.com/sunpen172.html...FYje4AodkwEA6g
In effect, the 2 stroke gas generator plus trolling motor distributes forward the weight of the powerplant, might add some range, and doesn't cost much. (Incidentally, I have another application for the 12 volt generator on shore.)
Not clear to me if a trolling motor with a gasoline powered generator would require a battery in the circuit as well, though in principle I suspect it could be avoided.
The last thing I thought of is to buy and restore an old Seagull.
Net, there are lot of improvised solutions aloft here, but the reason seems to be there aren't any new lightweight outboards in the 2 hp range from established manufacturers.
Seems like such a basic problem, powering a rigid dinghy, but maybe the market is too small, or maybe I am missing something important.
Thank you for your recommendations and insights.