Originally Posted by Wavewacker
Thanks guys! So, if a "small" cat were in the works to be built, one outboard would do the trick. We call those wings a whale tail around here and they do make a difference.
Gato was using two 5hp, I'd rather buy a 9.9!
A single outboard will only work if you can turn the engine to take advantage for manoeuvring. In strong winds it can be more than a little exciting as you slow down in a marina! Having the outboard turn as the rudders do is relatively easy, but this is not so effective for the manoeuvring, and also when motoring into a nasty sea, causes a reduction in thrust in the required direction as you adjust the rudder
I had a seperate steering
system similar in concept
to that used by Prout with the sillette legs. Much more effective, but not for the helm
who does not instinctively understand the interplay between thrust and rudder
A 9.9 will also have much more electricity generation than 2 x 5hp, and more grunt as well.