I have a 1969 Evinrude Sportwin 9.5HP Model 9922S that seems to be running at about half the speed that other users have reported.
I am running it on a 12 1/2' fiberglass v-hull that I estimate around 250lbs with around 500lbs people/gear/fuel/motor and it runs at about 6mph most of the time.
It...
