McLay 531 Fortress Wide Body 2027 boat specs
McLay
McLay 531 Fortress Wide Body 2027
2027
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VS
McLay 571 Sportsman HT 2026 boat specs
McLay
McLay 571 Sportsman HT 2026
2026
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McLay 531 Fortress Wide Body 2027 vs McLay 571 Sportsman HT 2026: Same Brand, Different Boat

The McLay 531 Fortress Wide Body 2027 vs McLay 571 Sportsman HT 2026 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.

On paper these two are close siblings in the size department - McLay 531 Fortress Wide Body 2027 at 17,4 ft versus McLay 571 Sportsman HT 2026 at 18,5 ft. Weight tells a clearer story for trailering families: the McLay 571 Sportsman HT 2026 tips the scales at 2 535 lbs - 1 323 lbs less than the McLay 531 Fortress Wide Body 2027 at 1 213 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 115 hp, the McLay 531 Fortress Wide Body 2027 has a 25-hp advantage over the McLay 571 Sportsman HT 2026's 90-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 5 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the McLay 531 Fortress Wide Body 2027 and its 115-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the McLay 571 Sportsman HT 2026 with its 90-hp rating is the more economical daily driver.
General Boat Info
MakeMcLay
MakeMcLay
Model531 Fortress Wide Body
Model571 Sportsman HT
Model Year2027
Model Year2026
Weight - Detail1212.54 lbs. (550 kg)
Weight - Detail2535.31 lbs. (1150 kg)
Weight - kg550
Weight - kg1150
Weight - lbs.1212.54
Weight - lbs.2535.31
Measurements / Dimensions
Length overall - Detail17 ft. 5 in. (5.3 m)
Length overall - Detail18 ft. 6 in. (5.65 m)
Length overall - Inches208.66
Length overall - Inches222.44
Length overall - Meters5.3
Length overall - Meters5.65
Length - Feet17.39
Length - Feet18.54
Beam86.61 in. (2.2 m)
Beam86.61 in. (2.2 m)
Beam - Inches86.61
Beam - Inches86.61
Beam - Meters2.2
Beam - Meters2.2
Weight - DetailApproximate hull weight
Weight - DetailApproximate hull weight incl. 90 HP motor and trailer
Weight - kg550
Weight - kg1150
Weight - lbs.1212.54
Weight - lbs.2535.32
Height - DetailTransom 20in; Freeboard 680mm
Height - DetailFreeboard 680mm; transom 25in
Height - Inches20
Height - Inches25
Height - Meters0.51
Height - Meters0.64
Body / Hull
Hull materialAluminium
Hull materialAluminium
Engine and Drivetrain
Engine max115 HP
Engine max90-115 HP
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters130
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal34.34
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail34.34 gal. (130 l)
Horsepowernot available
Horsepower75
Engine/s standardnot available
Engine/s standardFour-stroke
Engine makenot available
Engine makeYamaha
Engine modelnot available
Engine modelF75XB
Operational Info
Boat typeSide console
Boat typeHardtop cuddy cabin
Warranty Info
Warranty5 years hull warranty; 3 years materials
Warranty5 years hull warranty; 3 years materials
Options / Other
OptionsOptions (manufacturer, 531 Fortress Wide Body): console variants; U-Deck; rod-holder upgrades; bait board; full keel strip; Minn Kota plate; ski pole; sounder mount; underfloor 130L tank; buoyancy platforms; screen/rail; storage seat; trailer.
OptionsOptions (manufacturer, Sportsman 571 HT): bait board/rod holders; extra rod holders; auxiliary bracket; cabin windows; foam buoyancy gunnels; bow rail; keel protection; lined cabin; live-bait tank/pump; seat upgrade; ski pole; walk-through transom; drum/capstan winch; deck wash; Fusion audio; lights; paint; steering; hardtop canopy; bunk upgrades.

McLay 531 Fortress Wide Body 2027 vs McLay 571 Sportsman HT 2026 - Common Questions

Which is the larger boat - the McLay 531 Fortress Wide Body 2027 or the McLay 571 Sportsman HT 2026?
The McLay 571 Sportsman HT 2026 is the longer of the two at 18,5 feet overall. The McLay 531 Fortress Wide Body 2027 comes in at 17,4 feet, making it roughly 1,2 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the McLay 531 Fortress Wide Body 2027 or the McLay 571 Sportsman HT 2026?
For trailering, the McLay 531 Fortress Wide Body 2027 has the edge at 1 213 lbs dry weight versus 2 535 lbs for the McLay 571 Sportsman HT 2026. 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.
Which boat can handle a bigger outboard?
The McLay 531 Fortress Wide Body 2027 is rated to a maximum of 115 hp, giving it the larger power ceiling. The McLay 571 Sportsman HT 2026 tops out at 90 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 McLay 531 Fortress Wide Body 2027 is Coast Guard rated for 5 passengers, while the McLay 571 Sportsman HT 2026 is certified for 5. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the McLay 531 Fortress Wide Body 2027 and McLay 571 Sportsman HT 2026 share an 86.61 in. (2.2 m) beam - meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Are the McLay 531 Fortress Wide Body 2027 and McLay 571 Sportsman HT 2026 from the same manufacturer?
Yes - both the McLay 531 Fortress Wide Body 2027 and the McLay 571 Sportsman HT 2026 are built by McLay. 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.