Yellowstone
New member
I can't cite the tests done, but I have read where a single engine will out perform twin engines of the same horsepower combined. Seems that extra mass in the water from twins creates more drag. Also, twins may weigh more than single engines of same hp. But as the old saying goes, when you have the ponies, you have to feed them. There is no free lunch when it comes to efficiency. Interestingly enough, when on plane with tabs set at 60% (down), my 22' gets its greatest speed as measured by speed over ground with the GPS. Also, in a very light chop, speed is higher. Someone told me that the "tension" is broken on the hull little bits at a time, with less wetted hull in the water??? The CD 22' is much more weight sensitive then is generally understood. I'm not sure what the "critical mass" is, but when heavily loaded, I travel a little bit over hull speed. But then everyday is late Friday afternoon to me. Yellowstone John