Alumacraft Navigator 185 CS 2005 boat specs
Alumacraft
Alumacraft Navigator 185 CS 2005
2005
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Alumacraft V-Bow 1650 AW Tunnel SC 2007 boat specs
Alumacraft
Alumacraft V-Bow 1650 AW Tunnel SC 2007
2007
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Alumacraft Navigator 185 CS 2005 vs Alumacraft V-Bow 1650 AW Tunnel SC 2007 — Same Brand, Different Boat

The Alumacraft Navigator 185 CS 2005 vs Alumacraft V-Bow 1650 AW Tunnel SC 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 Navigator 185 CS 2005 at 18,0 ft versus Alumacraft V-Bow 1650 AW Tunnel SC 2007 at 16,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Navigator 185 CS 2005 tips the scales at 1 351 lbs — 1 283 lbs more than the Alumacraft V-Bow 1650 AW Tunnel SC 2007 at 68 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 150 hp, the Alumacraft Navigator 185 CS 2005 has a 90-hp advantage over the Alumacraft V-Bow 1650 AW Tunnel SC 2007's 60-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Alumacraft Navigator 185 CS 2005 is rated for 6 passengers, while the Alumacraft V-Bow 1650 AW Tunnel SC 2007 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Navigator 185 CS 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft V-Bow 1650 AW Tunnel SC 2007 comes in at 1 lbs per hp versus 9 lbs per hp for the Alumacraft Navigator 185 CS 2005. 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 Navigator 185 CS 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 V-Bow 1650 AW Tunnel SC 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelNavigator 185 CS
ModelV-Bow 1650 AW Tunnel SC
Model Year2005
Model Year2007
Measurements / Dimensions
Beam96 in. (2.44 m)
Beam74 in
Beam - Meters2.44
Beam - Meters1.88
Beam - Inches96
Beam - Inches74
Depth - Detail39 in. (.99 m) Maximum to floor: 22 in. (.56 m)
Depth - Detailnot available
Depth - Centimeters99.06
Depth - Centimetersnot available
Depth - Inches39
Depth - Inchesnot available
Weight - Detail1351 lbs. (613 kg)
Weight - Detail680 lbs
Weight - kg612.8
Weight - kg308.44
Weight - lbs.1351
Weight - lbs.68
Width [transom] - Detail93 in. (2.36 m)
Width [transom] - Detail50 in
Height [transom]20 in. (.51 m)
Height [transom]21 in
Length - Meters5.66
Length - Metersnot available
Length - Feet18
Length - Feet16
Length - Inches7
Length - Inchesnot available
Length overall - Detail18 ft. 7 in. (5.66 m)
Length overall - Detail16 ft. 0 in
Length overall - Meters5.66
Length overall - Meters4.88
Length overall - Inches223
Length overall - Inches192
Height - Detailnot available
Height - Detail22 in
Height - Metersnot available
Height - Meters0.56
Height - Inchesnot available
Height - Inches22
Body / Hull
Hull thicknessBottom: .098 in. (2.5 mm) Sides: .80 in. (2.0 mm) 2XB Bow?2nd plate: .098 in. 2XB Bottom?2nd plate: .080 in
Hull thickness0.102 in
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail40 gal. (151 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters151.42
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal4
Fuel tank capacity - Galnot available
Engine max150 hp (111 kw)
Engine max60 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum people6
Maximum people5
Maximum capacitynot available
Maximum capacity855 lbs

Alumacraft Navigator 185 CS 2005 vs Alumacraft V-Bow 1650 AW Tunnel SC 2007 — Common Questions

Which is the larger boat — the Alumacraft Navigator 185 CS 2005 or the Alumacraft V-Bow 1650 AW Tunnel SC 2007?
The Alumacraft Navigator 185 CS 2005 is the longer of the two at 18,0 feet overall. The Alumacraft V-Bow 1650 AW Tunnel SC 2007 comes in at 16,0 feet, making it roughly 2,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Navigator 185 CS 2005 or the Alumacraft V-Bow 1650 AW Tunnel SC 2007?
For trailering, the Alumacraft V-Bow 1650 AW Tunnel SC 2007 has the edge at 68 lbs dry weight versus 1 351 lbs for the Alumacraft Navigator 185 CS 2005. 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 Navigator 185 CS 2005 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Alumacraft V-Bow 1650 AW Tunnel SC 2007 tops out at 60 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 CS 2005 is Coast Guard rated for 6 passengers, while the Alumacraft V-Bow 1650 AW Tunnel SC 2007 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.
Which boat has the better power-to-weight ratio?
The Alumacraft V-Bow 1650 AW Tunnel SC 2007 has a better power-to-weight ratio at 1 lbs per hp compared to 9 lbs per hp for the Alumacraft Navigator 185 CS 2005. 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 Navigator 185 CS 2005 measures 96" wide, compared to 74" for the Alumacraft V-Bow 1650 AW Tunnel SC 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.
Are the Alumacraft Navigator 185 CS 2005 and Alumacraft V-Bow 1650 AW Tunnel SC 2007 from the same manufacturer?
Yes — both the Alumacraft Navigator 185 CS 2005 and the Alumacraft V-Bow 1650 AW Tunnel SC 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.