Boston Whaler 235 Conquest 2011 boat specs
Boston Whaler
Boston Whaler 235 Conquest 2011
2011
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VS
Boston Whaler 270 Vantage 2015 boat specs
Boston Whaler
Boston Whaler 270 Vantage 2015
2015
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Boston Whaler 235 Conquest 2011 vs Boston Whaler 270 Vantage 2015 — Same Brand, Different Boat

The Boston Whaler 235 Conquest 2011 vs Boston Whaler 270 Vantage 2015 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.

The power gap is worth calling out. Rated to 300 hp, the Boston Whaler 235 Conquest 2011 has a 75-hp advantage over the Boston Whaler 270 Vantage 2015's 225-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Boston Whaler 270 Vantage 2015 carries 175 gallons versus 122 gallons in the Boston Whaler 235 Conquest 2011. 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 Boston Whaler 235 Conquest 2011 is rated for 12 passengers, while the Boston Whaler 270 Vantage 2015 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Boston Whaler 235 Conquest 2011 could be the deciding factor.

Bottom line: Choose the Boston Whaler 235 Conquest 2011 if your priority is putting more people on the water — it handles 12 passengers and at 25,2 ft it has the deck room to back that rating up comfortably. The Boston Whaler 270 Vantage 2015 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakeBoston Whaler
Makenot available
Model235 Conquest?
Modelnot available
Model Year2011
Model Yearnot available
Measurements / Dimensions
Beam8 ft. 6 in. (2.59 m)
Beam9.00 ft
Beam - Meters2.59
Beam - Meters2.74
Beam - Inches102
Beam - Inches108
Bridge clearance - Detail6 ft. 2 in. (1.8 m) 8 ft. 8 in. (2.64 m) with hardtop
Bridge clearance - Detailnot available
Bridge clearance - Meters2.64
Bridge clearance - Metersnot available
Bridge clearance - Inches104
Bridge clearance - Inchesnot available
Deadrise20°
Deadrisenot available
Depth - Detail25 in. (0.63 m) cockpit depth
Depth - Detailnot available
Depth - Centimeters63.5
Depth - Centimetersnot available
Depth - Inches25
Depth - Inchesnot available
Draft [max] - Detail15 in. (0.38 m) boat only
Draft [max] - Detailnot available
Draft [max] - Meters0.38
Draft [max] - Metersnot available
Draft [max] - Inches15
Draft [max] - Inchesnot available
Weight - Detail3,730 lbs. (1,692 kg) no engine
Weight - Detailnot available
Weight - kg1691.9
Weight - kgnot available
Weight - lbs.373
Weight - lbs.not available
Height [transom]30 in. (0.76 m)
Height [transom]not available
Length - Feet25.17
Length - Feet28.3
Length overall - Detail25 ft. 2 in. (7.67 m) with pulpit 23 ft. (7.01 m) hull length
Length overall - Detail28.30 ft
Length overall - Meters7.67
Length overall - Meters8.63
Length overall - Inches302
Length overall - Inches340
Draft Minnot available
Draft Min1.80 ft
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardMercury? 225 XXL DTS Verado? FourStroke with Vessel View Display and hydraulic power steering
Engine/s standardnot available
Fuel tank capacity - Detail122 gal. (462 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters461.82
Fuel tank capacity - Liters662.45
Fuel tank capacity - Gal122
Fuel tank capacity - Gal175
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeoutboard
Horsepower225 hp (165 kW)
Horsepower225 hp
Engine max300 hp (224 kW)
Engine maxnot available
Engine makenot available
Engine makeMercury
Engine 2 Engine Makenot available
Engine 2 Engine MakeMercury
Engine 2 Horsepowernot available
Engine 2 Horsepower225 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeGas
Engine 2 Drive Typenot available
Engine 2 Drive Typeoutboard
Operational Info
Headroom5 ft. (1.52 m) cabin headroom
Headroomnot available
Water capacity12 gal. (45 l)
Water capacity2
Maximum capacity3,500 lbs. (1,588 kg) Swamped Capacity: 4,400 lbs. (1,996 kg)
Maximum capacitynot available
Maximum people12
Maximum peoplenot available
Cabinsnot available
Cabins1
Headnot available
Head1
Boat typenot available
Boat typePower

Boston Whaler 235 Conquest 2011 vs Boston Whaler 270 Vantage 2015 — Common Questions

Which is the larger boat — the Boston Whaler 235 Conquest 2011 or the Boston Whaler 270 Vantage 2015?
The Boston Whaler 270 Vantage 2015 is the longer of the two at 28,3 feet overall. The Boston Whaler 235 Conquest 2011 comes in at 25,2 feet, making it roughly 3,1 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Boston Whaler 235 Conquest 2011 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Boston Whaler 270 Vantage 2015 tops out at 225 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Boston Whaler 235 Conquest 2011 is Coast Guard rated for 12 passengers, while the Boston Whaler 270 Vantage 2015 is certified for 8. 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 Boston Whaler 270 Vantage 2015 measures 108" wide, compared to 102" for the Boston Whaler 235 Conquest 2011. 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 Boston Whaler 235 Conquest 2011 or the Boston Whaler 270 Vantage 2015?
The Boston Whaler 270 Vantage 2015 has the bigger tank at 175 gallons, versus 122 gallons on the Boston Whaler 235 Conquest 2011. That 53-gallon difference translates to roughly 159–265 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Boston Whaler 235 Conquest 2011 and Boston Whaler 270 Vantage 2015 from the same manufacturer?
Yes — both the Boston Whaler 235 Conquest 2011 and the Boston Whaler 270 Vantage 2015 are built by Boston Whaler. 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.