On Apr 9, 9:41*am, Tim wrote:
This pontoon I just got has a v-4 evinrude with a power trim . Besides
using it to raise the lower end for transport, is a power trim really
of any effective use on a pontoon boat? especially of one of this size
and loaded down with people? *I mean it's gong to be a cruise
platform, not a rocket sled.

My old Bennington was a 25' tritoon with lifting strakes and a 150hp
Johnson. The trim on it did make some difference... in a straight
line you could affect the speed and bow lift a bit. However, when set
at the most efficient for running in a straight line, it would
ventilate the prop in anything over a gentle turn. When skiing or
pulling a tube, I'd have to work the trim a lot.

The new Premier is also a 25' tritoon, but it has a different center
pontoon design. With the Yamaha 250 on it, the trim has virtually no
effect on the bow lift or speed... it seems that it's planed out and
doing all it will do. Nice thing is that it's hooked up solid with no
ventilation in the turns, and it'll turn nearly as sharp as a V hull.

With your boat's length and having two 'toons, I'd be surprised if you
see much of an effect with the trim, but I may be wrong. Let us know
what it does.