Alumacraft Tournament Sport 185 2005 boat specs
Alumacraft
Alumacraft Tournament Sport 185 2005
2005
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VS
Alumacraft VS170 2007 boat specs
Alumacraft
Alumacraft VS170 2007
2007
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Alumacraft Tournament Sport 185 2005 vs Alumacraft VS170 2007 — Same Brand, Different Boat

The Alumacraft Tournament Sport 185 2005 vs Alumacraft VS170 2007 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 — Alumacraft Tournament Sport 185 2005 at 18,0 ft versus Alumacraft VS170 2007 at 17,0 ft. Weight tells a clearer story for trailering families: the Alumacraft VS170 2007 tips the scales at 852 lbs — 836 lbs less than the Alumacraft Tournament Sport 185 2005 at 16 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 200 hp, the Alumacraft Tournament Sport 185 2005 has a 130-hp advantage over the Alumacraft VS170 2007's 70-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Alumacraft Tournament Sport 185 2005 carries 41 gallons versus 16 gallons in the Alumacraft VS170 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 Alumacraft Tournament Sport 185 2005 is rated for 6 passengers, while the Alumacraft VS170 2007 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Tournament Sport 185 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft Tournament Sport 185 2005 comes in at 0 lbs per hp versus 12 lbs per hp for the Alumacraft VS170 2007. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: Choose the Alumacraft Tournament Sport 185 2005 if your priority is putting more people on the water — it handles 6 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Alumacraft VS170 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelTournament Sport 185
ModelVS17
Model Year2005
Model Year2007
Measurements / Dimensions
Beam96 in. (2.43 m)
Beam74 in. (1.88 m) Bottom: 52 in. (1.32 m)
Beam - Meters2.44
Beam - Meters1.88
Beam - Inches96
Beam - Inches74
Depth - Detail43 in. (1.1 m) Maximum to floor: 22 in. (.56 m)
Depth - Detail22 in. (0.56 m)
Depth - Centimeters109.22
Depth - Centimeters55.88
Depth - Inches43
Depth - Inches22
Weight - Detail1600 lbs. (725 kg)
Weight - Detail852 lbs. (387 kg)
Weight - kg725.75
Weight - kg386.46
Weight - lbs.16
Weight - lbs.852
Width [transom] - Detail95 in. (2.41 m)
Width [transom] - Detail74 in. (1.88 m)
Height [transom]25 in. (.64 m)
Height [transom]22 in. (0.6 m)
Length - Meters5.76
Length - Meters5.18
Length - Feet18
Length - Feet17
Length - Inches11
Length - Inchesnot available
Length overall - Detail18 ft. 11 in. (5.76 m)
Length overall - Detail17 ft. 0 in. (5.18 m)
Length overall - Meters5.77
Length overall - Meters5.18
Length overall - Inches227
Length overall - Inches204
Body / Hull
Hull thicknessBottom: .100 in. (2.5 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd plate: .100 in. 2XB Bottom?2nd plate: .080 in
Hull thickness0.102 in. (2.5 mm)
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail41 gal. with reserve (155 l)
Fuel tank capacity - Detail16 gal. (68 l)
Fuel tank capacity - Liters155.2
Fuel tank capacity - Liters60.57
Fuel tank capacity - Gal41
Fuel tank capacity - Gal16
Engine max200 hp (148 kw)
Engine max70 hp (51 kw)
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum people6
Maximum people4
Maximum capacitynot available
Maximum capacity1,100 lbs. (499 kg)

Alumacraft Tournament Sport 185 2005 vs Alumacraft VS170 2007 — Common Questions

Which is the larger boat — the Alumacraft Tournament Sport 185 2005 or the Alumacraft VS170 2007?
The Alumacraft Tournament Sport 185 2005 is the longer of the two at 18,0 feet overall. The Alumacraft VS170 2007 comes in at 17,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Tournament Sport 185 2005 or the Alumacraft VS170 2007?
For trailering, the Alumacraft Tournament Sport 185 2005 has the edge at 16 lbs dry weight versus 852 lbs for the Alumacraft VS170 2007. 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 Alumacraft Tournament Sport 185 2005 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Alumacraft VS170 2007 tops out at 70 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 Alumacraft Tournament Sport 185 2005 is Coast Guard rated for 6 passengers, while the Alumacraft VS170 2007 is certified for 4. 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 has the better power-to-weight ratio?
The Alumacraft Tournament Sport 185 2005 has a better power-to-weight ratio at 0 lbs per hp compared to 12 lbs per hp for the Alumacraft VS170 2007. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Alumacraft Tournament Sport 185 2005 measures 96" wide, compared to 74" for the Alumacraft VS170 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 Alumacraft Tournament Sport 185 2005 or the Alumacraft VS170 2007?
The Alumacraft Tournament Sport 185 2005 has the bigger tank at 41 gallons, versus 16 gallons on the Alumacraft VS170 2007. That 25-gallon difference translates to roughly 75–125 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Alumacraft Tournament Sport 185 2005 and Alumacraft VS170 2007 from the same manufacturer?
Yes — both the Alumacraft Tournament Sport 185 2005 and the Alumacraft VS170 2007 are built by Alumacraft. 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.