Marquis Yachts 50 LS 2007 boat specs
Marquis Yachts
Marquis Yachts 50 LS 2007
2007
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Marquis Yachts Marquis 70 Tri-Deck 2008 boat specs
Marquis Yachts
Marquis Yachts Marquis 70 Tri-Deck 2008
2008
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Marquis Yachts 50 LS 2007 vs Marquis Yachts Marquis 70 Tri-Deck 2008: Which Semi-Displacement Boat Fits Your Needs?

Both the Marquis Yachts 50 LS 2007 and the Marquis Yachts Marquis 70 Tri-Deck 2008 are semi-displacement designs, both built in fibreglass, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

The power gap is worth calling out. Rated to 1 676 hp, the Marquis Yachts Marquis 70 Tri-Deck 2008 has a 961-hp advantage over the Marquis Yachts 50 LS 2007's 715-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Marquis Yachts Marquis 70 Tri-Deck 2008 carries 1 300 gallons versus 600 gallons in the Marquis Yachts 50 LS 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Bottom line: The Marquis Yachts Marquis 70 Tri-Deck 2008 at 72,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Marquis Yachts 50 LS 2007 at 51,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeMarquis Yachts
MakeMarquis Yachts
Model50 LS
ModelMarquis? 70 Tri-Deck
Model Year2007
Model Year2008
Measurements / Dimensions
BeamWith Gunnel Molding: 15 ft. (4.6 m)
Beam18 ft. 4 in. (5.5 m)
Beam - Meters4.57
Beam - Meters5.59
Beam - Inches180
Beam - Inches220
Bridge clearance - DetailWaterline to Arch: 19 ft. 11 in. (5.8 m)
Bridge clearance - Detail24 ft. 5 in. (7.4 m) with arch
Bridge clearance - Meters6.07
Bridge clearance - Meters7.44
Bridge clearance - Inches239
Bridge clearance - Inches293
Draft [max] - Detail57 in. (1.4 m)
Draft [max] - Detail4 ft. 11 in. (1.5 m) with CAT C18 engines
Draft [max] - Meters1.45
Draft [max] - Meters1.5
Draft [max] - Inches57
Draft [max] - Inches59
Length - Meters15.7
Length - Meters22
Length - Feet51
Length - Feet72
Length - Inches6
Length - Inchesnot available
Length [over all with swim platform]51 ft. 6 in. (15.7 m)
Length [over all with swim platform]72 ft. (22 m)
Weight - Detailnot available
Weight - Detail54.5 tons (49.4 t) with fuel, water and CAT C18 engines
Weight - kgnot available
Weight - kg49441.53
Weight - lbs.not available
Weight - lbs.109000
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeSemi Displacement
Hull typeSemi Displacement
Engine and Drivetrain
Engine/s standardVolvo Penta? D9, 500 hp
Engine/s standardCAT? C18, 1,000 hp
Fuel tank capacity - Detail600 gal. (2,271 l)
Fuel tank capacity - Detail1,300 gal. (4,921 l)
Fuel tank capacity - Liters2271.25
Fuel tank capacity - Liters4921.03
Fuel tank capacity - Gal600
Fuel tank capacity - Gal1300
Fuel typeDiesel
Fuel typeDiesel
Drive typePod Drive
Drive typeInboard
Engine max715 hp
Engine max1,676 hp
Operational Info
Headroom6 ft. 6 in. (2 m)
Headroom6 ft. 8 in. (2.0 m) cabin
Sleeping capacity4 (6 optional)
Sleeping capacity3 standard cabins, crew quarters optional
Water capacity150 gal. (568 l)
Water capacity200 gal. (757 l)
Water heater capacity20 gal. (75.7 l)
Water heater capacity32 gal. (121.1 l)
Holding tank capacity - Detail80 gal. (303 l)
Holding tank capacity - Detail153 gal. (580 l)
Holding tank capacity - Liters302.83
Holding tank capacity - Liters579.17
Holding tank capacity - Gal80
Holding tank capacity - Gal153

Marquis Yachts 50 LS 2007 vs Marquis Yachts Marquis 70 Tri-Deck 2008 - Common Questions

Which is the larger boat - the Marquis Yachts 50 LS 2007 or the Marquis Yachts Marquis 70 Tri-Deck 2008?
The Marquis Yachts Marquis 70 Tri-Deck 2008 is the longer of the two at 72,0 feet overall. The Marquis Yachts 50 LS 2007 comes in at 51,0 feet, making it roughly 21,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Marquis Yachts Marquis 70 Tri-Deck 2008 is rated to a maximum of 1 676 hp, giving it the larger power ceiling. The Marquis Yachts 50 LS 2007 tops out at 715 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.
Which boat is wider, and does it affect trailering?
The Marquis Yachts Marquis 70 Tri-Deck 2008 measures 220" wide, compared to 180" for the Marquis Yachts 50 LS 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 Marquis Yachts 50 LS 2007 or the Marquis Yachts Marquis 70 Tri-Deck 2008?
The Marquis Yachts Marquis 70 Tri-Deck 2008 has the bigger tank at 1 300 gallons, versus 600 gallons on the Marquis Yachts 50 LS 2007. That 700-gallon difference translates to roughly 2100–3500 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Marquis Yachts 50 LS 2007 and Marquis Yachts Marquis 70 Tri-Deck 2008 from the same manufacturer?
Yes - both the Marquis Yachts 50 LS 2007 and the Marquis Yachts Marquis 70 Tri-Deck 2008 are built by Marquis Yachts. 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.