I owned a 2006 Mainship 34T with the 370 hp Yanmar
which is a lower cost competitor to the Beneteau. Some contra observations to the above complaints:
1. The engine
was relatively quiet. Mainship designed it with no cabin
floor access, so soundproofing wasn't compromised, but had easy access from a flip up ladder from the aft cockpit
2. Engine access for the single
engine was great. You couldn't stand up in the engine room but you could sit on an overturned bucket and work from each side.
3. Fuel consumption
was high. At 12 kts it got 1 NM per gallon. But at 7 kts it burned about 3 gph or about 2+ NM/gal.This is definitely higher than a round bottom displacement hull
. You can run these engines slow for extended periods with no problem. Ask Tony Athens who runs a Cummins/Yanmar dealership in SoCal that question. He is one of the moderator/gurus on boatdiesel.
But when we wanted to go fast, maybe one third of our usage, we could. So the extra hp wasn't wasted on us. But I do appreciate the go slow/efficient perspective.
4. It was reasonably well built. No rattling underway.
5. The layout was ideal for a couple- queen size berth forward, large cabin, galley
down, huge, full beam width flybridge. We could party 8 people on the flybridge- but only at anchor!!! The Beneteau has a different layout, not to my liking.
So I would never consider it a boat built to be sold, but not used. We used ours for trips back and forth to Catalina
very succesfully for 4 years.