Mainship took a fresh look at the desires of cruising families as well as their own need to update the 40 Trawler. The result is today’s Mainship Expedition, the start of a new series for them. The builder has opened up the salon and it is now more inviting for that relaxing time after a day’s voyage.
Starting from the Stern
One of the smart things that Mainship does that I like is the fact they intend for the stern to be used as a platform both underway and at anchor. What I mean is, they have a transom door so you can enter and leave without climbing, if at a floating dock, and you can enjoy the swim platform as just that, a swim platform. Most trawler-type boats I have seen have the stern designed to be straddled and crossed. Mainship also uses a civilized door with beefy hinges.
For the alongside dockage, they do have a step you can flip down for that extra boost up you may need. In the cockpit you will enjoy enough room to set up a couple of deck chairs and relax with a chilly beverage as the sun sets. Stairs with a sturdy hand rail lead up to the flying bridge and boat deck.
The topside on this particular model was really set up for a couple to enjoy a quiet evening together or to entertain the dockside neighbors to an al-fresco meal. The optional summer grill also includes a sink and ice maker and there’s a table for two at the aft starboard rail for those more intimate moments. When the neighbors all show up, you can serve on a folding table under the bimini in the flying bridge with lots of bench seating. These large bench seats also provide a wealth of storage space. The upper control station is the place for driving this trawler. Views and visibility are excellent. This is one of the largest flying bridge decks in its class according to Mainship, and I believe them.
On the Bow
I found getting to the bow was fairly easy with wide side decks and rails for balance. Once there I noticed that there was plenty of room to move about, handle lines and work with the anchoring system if you needed to. If you want to get away from everyone, it is also a space you can plop down a beach towel and relax with a favorite novel.
Moving inside we begin to see where Mainship made its most significant changes. The salon and galley were rearranged to have the galley forward along the port side and a large semi-circular lounge and table to starboard behind the helm. Two lounger seats were set up to port, across from the couch, and these could easily be moved to enjoy a large flat screen 26” TV mounted in the port bulkhead. The helm bench seat back is hinged to fold it down, which opens up the view for those on the salon couch looking forward. For additional overnight guests, the lounger and table convert into a sizable guest bed.
The cabinet on the aft bulkhead has a countertop and inside room for a Bose system and sub woofer as well as an optional ice maker to keep the chilly drinks coming without having to go all the way to the galley inside or topside.
The inside steering station is the other huge change from its predecessor. Instrumentation is typical and seemed to be arranged for good view. Visibility from the inside steering station is good, although more limited, or course, than the open steering station on the bridge, yet it is certainly nice to have the option of driving from inside on those particularly nasty days. Electric DC bow thrusters are standard, stern thrusters are optional.
The engine is accessed from panels in the floor of the salon. The center panel offers the captain good access to the Yanmar engine for daily inspection. For more detailed maintenance, additional floor panels may be removed expanding the room available to work. My test model was powered with a Yanmar 380-hp electronically controlled engine. Several options are available.
Moving forward, the Expedition does have two dedicated berths for the master and guests. The guest berth can be a multi-purpose cabin. This one was set up as a twin berth. Across the foot of the bed, overhead, a clothes rod had been added to expand the hanging clothes capacity aboard.
This design only has one head shared by the master and the guest cabin. It does have a shower with separate enclosure. The floor of the shower is slightly lower than the head main sole which I thought was nice for allowing for more head room, for instance, when reaching up to wash your hair.
The Expedition measures 41’4” (12.60 m) length overall and 14’2” (4.32 m) across the beam. She weighs about 24,000lbs (10,896 kg) and has a fuel capacity of 300 gallons (1,136 L). Draft measurement is 3’8” (1.12 m) and fresh water capacity is 130 gallons (492 L). This model is rated for single or twins. Single Yanmar engines up to 440-hp or twin Yanmar 6BY-260s are available.I tested this model in Biscayne Bay south of Miami with 3 people on board and found she handled smooth, even in steady traffic. The Yanmar engine work flawlessly. I found her top speed was 19.2 mph at 3368 rpm and her best cruise was 18.3 mph at 3250. Sound levels in the salon never reached over 73 dBA, and this is noteworthy.
I did enjoy the idea of the summer grill topside as much time will likely be spent with the wind in your hair on this model. If you truly do a lot of cruising, you will probably want to add a few things, such as the 9kw generator and sea strainers, to make your life much easier aboard.
Test Result Highlights
- Top speed for the Mainship Expedition Trawler is 19.2 mph (30.9 kph), burning 18.8 gallons per hour (gph) or 71.16 liters per hour (lph).
- Best cruise for the Mainship Expedition Trawler is 18.3 mph (29.5 kph), and the boat gets 1.07 miles per gallon (mpg) or 0.45 kilometers per liter (kpl), giving the boat a cruising range of 290 miles (466.71 kilometers).
- Tested power is 1 x 380-hp Yanmar 6LY3-UTP - Diesel.
Standard and Optional Features
|Dripless Shaft Seals||Standard|
|Washdown: Fresh Water||Standard|
|Washdown: Raw Water||Optional|
|Outlet: 12-Volt Acc||Standard|
Boats More Than 30 Feet
|Oil Change System||Optional|