Alumacraft Navigator 185 Sport 2006 boat specs
Alumacraft
Alumacraft Navigator 185 Sport 2006
2006
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VS
Alumacraft Trophy 205 2010 boat specs
Alumacraft
Alumacraft Trophy 205 2010
2010
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Alumacraft Navigator 185 Sport 2006 vs Alumacraft Trophy 205 2010 — Same Brand, Different Boat

Matching a modified vee Alumacraft Navigator 185 Sport 2006 against a deep vee Alumacraft Trophy 205 2010 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department — Alumacraft Navigator 185 Sport 2006 at 18,0 ft versus Alumacraft Trophy 205 2010 at 20,7 ft. Weight tells a clearer story for trailering families: the Alumacraft Trophy 205 2010 tips the scales at 1 915 lbs — 1 771 lbs less than the Alumacraft Navigator 185 Sport 2006 at 144 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 225 hp, the Alumacraft Trophy 205 2010 has a 75-hp advantage over the Alumacraft Navigator 185 Sport 2006's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 4 gal and 6 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Trophy 205 2010 is rated for 9 passengers, while the Alumacraft Navigator 185 Sport 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Trophy 205 2010 could be the deciding factor.

Bottom line: Choose the Alumacraft Trophy 205 2010 if your priority is putting more people on the water — it handles 9 passengers and at 20,7 ft it has the deck room to back that rating up comfortably. The Alumacraft Navigator 185 Sport 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelNavigator 185 Sport
ModelTrophy 205
Model Year2006
Model Year201
Measurements / Dimensions
Beam96 in. (2.44 m)
Beam98 in. (2.5 m)
Beam - Meters2.44
Beam - Meters2.49
Beam - Inches96
Beam - Inches98
Depth - DetailMaximum: 39 in. (.99 m) To Floor: 22 in. (.56 m)
Depth - DetailMaximum: 47 in. (1.2 m) To Floor: 27 in. (0.69 m)
Depth - Centimeters99.06
Depth - Centimeters119.38
Depth - Inches39
Depth - Inches47
Weight - Detail1,440 lbs. (653 kg)
Weight - Detail1,915 lbs. (869 kg)
Weight - kg653.17
Weight - kg868.63
Weight - lbs.144
Weight - lbs.1915
Width [transom] - Detail93 in. (2.36 m)
Width [transom] - Detail96 in. (2.45 m)
Height [transom]25 in. (.51 m)
Height [transom]25 in. (0.64 m)
Length - Meters5.66
Length - Meters6.3
Length - Feet18
Length - Feet20.67
Length - Inches7
Length - Inchesnot available
Length overall - Detail18 ft. 7 in. (5.66 m)
Length overall - Detail20 ft. 8 in. (6.3 m)
Length overall - Meters5.66
Length overall - Meters6.3
Length overall - Inches223
Length overall - Inches248
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom: .098 in. (2.5 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd Plate: .098 in
Hull thicknessBottom: 0.100 in. (2.5 mm)
Hull typeModified Vee
Hull typeDeep Vee
Engine and Drivetrain
Fuel tank capacity - Detail40 gal. (151 l)
Fuel tank capacity - Detail60 gal. (227 l)
Fuel tank capacity - Liters151.42
Fuel tank capacity - Liters227.12
Fuel tank capacity - Gal4
Fuel tank capacity - Gal6
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max150 hp (111 kw)
Engine max225 hp (167 kW)
Operational Info
Maximum capacity1,550 lbs. (703 kg)
Maximum capacity2,350 lbs. (1,066 kg)
Maximum people6
Maximum people9

Alumacraft Navigator 185 Sport 2006 vs Alumacraft Trophy 205 2010 — Common Questions

Which is the larger boat — the Alumacraft Navigator 185 Sport 2006 or the Alumacraft Trophy 205 2010?
The Alumacraft Trophy 205 2010 is the longer of the two at 20,7 feet overall. The Alumacraft Navigator 185 Sport 2006 comes in at 18,0 feet, making it roughly 2,7 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Navigator 185 Sport 2006 or the Alumacraft Trophy 205 2010?
For trailering, the Alumacraft Navigator 185 Sport 2006 has the edge at 144 lbs dry weight versus 1 915 lbs for the Alumacraft Trophy 205 2010. 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 Trophy 205 2010 is rated to a maximum of 225 hp, giving it the larger power ceiling. The Alumacraft Navigator 185 Sport 2006 tops out at 150 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 Navigator 185 Sport 2006 is Coast Guard rated for 6 passengers, while the Alumacraft Trophy 205 2010 is certified for 9. 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 Alumacraft Trophy 205 2010 measures 98" wide, compared to 96" for the Alumacraft Navigator 185 Sport 2006. 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.
How do the fuel tanks compare on the Alumacraft Navigator 185 Sport 2006 and Alumacraft Trophy 205 2010?
Both boats carry similar fuel loads — 4 gallons and 6 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Alumacraft Navigator 185 Sport 2006 and Alumacraft Trophy 205 2010 from the same manufacturer?
Yes — both the Alumacraft Navigator 185 Sport 2006 and the Alumacraft Trophy 205 2010 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.