Alumacraft 1648 NCS 2005 boat specs
Alumacraft
Alumacraft 1648 NCS 2005
2005
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Alumacraft V-Bow 1860 AW Tunnel SC 2005 boat specs
Alumacraft
Alumacraft V-Bow 1860 AW Tunnel SC 2005
2005
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Alumacraft 1648 NCS 2005 vs Alumacraft V-Bow 1860 AW Tunnel SC 2005 — Same Brand, Different Boat

The Alumacraft 1648 NCS 2005 vs Alumacraft V-Bow 1860 AW Tunnel SC 2005 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 1648 NCS 2005 at 16,0 ft versus Alumacraft V-Bow 1860 AW Tunnel SC 2005 at 18,0 ft. Weight tells a clearer story for trailering families: the Alumacraft V-Bow 1860 AW Tunnel SC 2005 tips the scales at 875 lbs — 849 lbs less than the Alumacraft 1648 NCS 2005 at 26 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 Alumacraft V-Bow 1860 AW Tunnel SC 2005 has a 80-hp advantage over the Alumacraft 1648 NCS 2005's 35-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 V-Bow 1860 AW Tunnel SC 2005 is rated for 6 passengers, while the Alumacraft 1648 NCS 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft V-Bow 1860 AW Tunnel SC 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft 1648 NCS 2005 comes in at 1 lbs per hp versus 8 lbs per hp for the Alumacraft V-Bow 1860 AW Tunnel SC 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 V-Bow 1860 AW Tunnel SC 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 1648 NCS 2005 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
Model1648 NCS
ModelV-Bow 1860 AW Tunnel SC
Model Year2005
Model Year2005
Measurements / Dimensions
Beam70 in
Beam86 in
Beam - Meters1.78
Beam - Meters2.18
Beam - Inches7
Beam - Inches86
Weight - Detail260 lbs
Weight - Detail875 lbs
Weight - kg117.93
Weight - kg396.89
Weight - lbs.26
Weight - lbs.875
Width [transom] - Detail48 in
Width [transom] - Detail60 in
Height - Detail21 in
Height - Detail25 in
Height - Meters0.53
Height - Meters0.64
Height - Inches21
Height - Inches25
Height [transom]15 in. or 20 in
Height [transom]21 in
Length - Feet16
Length - Feet18
Length overall - Detail16 ft. 0 in
Length overall - Detail18 ft. 0 in
Length overall - Meters4.88
Length overall - Meters5.49
Length overall - Inches192
Length overall - Inches216
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBottom/sides: .070 in
Hull thicknessnot available
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Engine max35 hp
Engine max115 hp
Fuel tank capacity - Detailnot available
Fuel tank capacity - DetailTwo 7.5 gal
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters30.28
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal7.5
Operational Info
Maximum people5
Maximum people6

Alumacraft 1648 NCS 2005 vs Alumacraft V-Bow 1860 AW Tunnel SC 2005 — Common Questions

Which is the larger boat — the Alumacraft 1648 NCS 2005 or the Alumacraft V-Bow 1860 AW Tunnel SC 2005?
The Alumacraft V-Bow 1860 AW Tunnel SC 2005 is the longer of the two at 18,0 feet overall. The Alumacraft 1648 NCS 2005 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 1648 NCS 2005 or the Alumacraft V-Bow 1860 AW Tunnel SC 2005?
For trailering, the Alumacraft 1648 NCS 2005 has the edge at 26 lbs dry weight versus 875 lbs for the Alumacraft V-Bow 1860 AW Tunnel SC 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 V-Bow 1860 AW Tunnel SC 2005 is rated to a maximum of 115 hp, giving it the larger power ceiling. The Alumacraft 1648 NCS 2005 tops out at 35 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 1648 NCS 2005 is Coast Guard rated for 5 passengers, while the Alumacraft V-Bow 1860 AW Tunnel SC 2005 is certified for 6. 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 1648 NCS 2005 has a better power-to-weight ratio at 1 lbs per hp compared to 8 lbs per hp for the Alumacraft V-Bow 1860 AW Tunnel SC 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 V-Bow 1860 AW Tunnel SC 2005 measures 86" wide, compared to 7" for the Alumacraft 1648 NCS 2005. 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 1648 NCS 2005 and Alumacraft V-Bow 1860 AW Tunnel SC 2005 from the same manufacturer?
Yes — both the Alumacraft 1648 NCS 2005 and the Alumacraft V-Bow 1860 AW Tunnel SC 2005 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.