Mainship 34 Trawler 2007 boat specs
Mainship
Mainship 34 Trawler 2007
2007
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Mainship 45 Trawler 2009 boat specs
Mainship
Mainship 45 Trawler 2009
2009
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Mainship 34 Trawler 2007 vs Mainship 45 Trawler 2009 — Same Brand, Different Boat

The Mainship 34 Trawler 2007 vs Mainship 45 Trawler 2009 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Mainship 45 Trawler 2009 measures 43,0 feet overall (2009), giving it roughly 7,0 additional feet of deck space compared to the Mainship 34 Trawler 2007 at 36,0 feet (2007). At 2 lbs and 4 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The Mainship 45 Trawler 2009 tops out at 440 hp. Engine specs for the Mainship 34 Trawler 2007 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Mainship 45 Trawler 2009 carries 777 gallons versus 25 gallons in the Mainship 34 Trawler 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Mainship 45 Trawler 2009 is rated for 13 passengers, while the Mainship 34 Trawler 2007 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mainship 45 Trawler 2009 could be the deciding factor.

Bottom line: Choose the Mainship 45 Trawler 2009 if your priority is putting more people on the water — it handles 13 passengers and at 43,0 ft it has the deck room to back that rating up comfortably. The Mainship 34 Trawler 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 11 that costs less to run day-to-day.
General Boat Info
MakeMainship
MakeMainship
Model34 Trawler
Model45 Trawler
Model Year2007
Model Year2009
Measurements / Dimensions
Beam14 ft. 2 in. (4.32 m)
Beam15 ft. 6 in. (4.72 m)
Beam - Meters4.32
Beam - Meters4.72
Beam - Inches17
Beam - Inches186
Bridge clearance - DetailTrawler/Flybridge (Air Draft): 15 ft. 0 in. (4.57 m)
Bridge clearance - Detailnot available
Bridge clearance - Meters4.57
Bridge clearance - Metersnot available
Bridge clearance - Inches18
Bridge clearance - Inchesnot available
Draft [max] - Detail3 ft. 3 in. (0.99 m)
Draft [max] - Detail3 ft. 8 in. (1.12 m)
Draft [max] - Meters0.99
Draft [max] - Meters1.12
Draft [max] - Inches39
Draft [max] - Inches44
Weight - Detail20,000 lbs. (9,080 kg)
Weight - Detail40,000 lbs. (18,160 kg)
Weight - kg9071.84
Weight - kg18143.68
Weight - lbs.2
Weight - lbs.4
Length - Meters11
Length - Meters13.11
Length - Feet36
Length - Feet43
Length - Inches1
Length - Inchesnot available
Length overall - Detail36 ft. 1 in. (11.00 m)
Length overall - Detail43 ft. 0 in. (13.11 m)
Length overall - Meters11
Length overall - Meters13.11
Length overall - Inches433
Length overall - Inches516
Height - Detailnot available
Height - DetailClearance (Air Draft): 18 ft. 8 in. (5.69 m)
Height - Metersnot available
Height - Meters5.69
Height - Inchesnot available
Height - Inches224
Length [over all with swim platform]not available
Length [over all with swim platform]47 ft. 9 in. (14.55 m) with pulpit
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement
Engine and Drivetrain
Fuel tank capacity - Detail250 gal. (946 l)
Fuel tank capacity - Detail777 gal. (2,941 l)
Fuel tank capacity - Liters946.35
Fuel tank capacity - Liters2941.26
Fuel tank capacity - Gal25
Fuel tank capacity - Gal777
Fuel typeDiesel
Fuel typeElectric
Drive typeInboard
Drive typeInboard - Twin
Engine maxTwin Yanmar, 240 hp (179 kW)
Engine maxTwin: 440 hp ea. (328 kW ea.)
Max no of enginesnot available
Max no of engines2
Operational Info
Headroom6 ft. 4 in. (1.93 m)
Headroom6 ft. 3 in. (1.91 m)
Sleeping capacity4
Sleeping capacity4-6
Water capacity70 gal. (265 l)
Water capacity200 gal. (757 l)
Holding tank capacity - Detail34 gal. (129 l)
Holding tank capacity - Detail56 gal. (212 l)
Holding tank capacity - Liters128.7
Holding tank capacity - Liters211.98
Holding tank capacity - Gal34
Holding tank capacity - Gal56

Mainship 34 Trawler 2007 vs Mainship 45 Trawler 2009 — Common Questions

Which is the larger boat — the Mainship 34 Trawler 2007 or the Mainship 45 Trawler 2009?
The Mainship 45 Trawler 2009 is the longer of the two at 43,0 feet overall. The Mainship 34 Trawler 2007 comes in at 36,0 feet, making it roughly 7,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Mainship 34 Trawler 2007 or the Mainship 45 Trawler 2009?
For trailering, the Mainship 34 Trawler 2007 has the edge at 2 lbs dry weight versus 4 lbs for the Mainship 45 Trawler 2009. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
What is the maximum horsepower rating for these boats?
The Mainship 45 Trawler 2009 has a documented max rating of 440 hp. Engine specifications for the Mainship 34 Trawler 2007 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Mainship 34 Trawler 2007 is Coast Guard rated for 11 passengers, while the Mainship 45 Trawler 2009 is certified for 13. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Mainship 45 Trawler 2009 measures 186" wide, compared to 17" for the Mainship 34 Trawler 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Mainship 34 Trawler 2007 or the Mainship 45 Trawler 2009?
The Mainship 45 Trawler 2009 has the bigger tank at 777 gallons, versus 25 gallons on the Mainship 34 Trawler 2007. That 752-gallon difference translates to roughly 2256–3760 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mainship 34 Trawler 2007 and Mainship 45 Trawler 2009 from the same manufacturer?
Yes — both the Mainship 34 Trawler 2007 and the Mainship 45 Trawler 2009 are built by Mainship. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.