Alumacraft Sierra 1436 LT 2012 boat specs
Alumacraft
Alumacraft Sierra 1436 LT 2012
2012
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VS
Alumacraft Trophy 180 2005 boat specs
Alumacraft
Alumacraft Trophy 180 2005
2005
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Alumacraft Sierra 1436 LT 2012 vs Alumacraft Trophy 180 2005 — Same Brand, Different Boat

The Alumacraft Sierra 1436 LT 2012 vs Alumacraft Trophy 180 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 Sierra 1436 LT 2012 at 14,0 ft versus Alumacraft Trophy 180 2005 at 17,0 ft. Weight tells a clearer story for trailering families: the Alumacraft Trophy 180 2005 tips the scales at 1 392 lbs — 1 257 lbs less than the Alumacraft Sierra 1436 LT 2012 at 135 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 175 hp, the Alumacraft Trophy 180 2005 has a 160-hp advantage over the Alumacraft Sierra 1436 LT 2012's 15-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 Trophy 180 2005 is rated for 6 passengers, while the Alumacraft Sierra 1436 LT 2012 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Alumacraft Trophy 180 2005 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Alumacraft Trophy 180 2005 comes in at 8 lbs per hp versus 9 lbs per hp for the Alumacraft Sierra 1436 LT 2012. 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 Trophy 180 2005 if your priority is putting more people on the water — it handles 6 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Alumacraft Sierra 1436 LT 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.
General Boat Info
MakeAlumacraft
MakeAlumacraft
ModelSierra 1436 LT
ModelTrophy 18
Model Year2012
Model Year2005
Measurements / Dimensions
Beam55 in
Beam96 in. (2.43 m)
Beam - Meters1.4
Beam - Meters2.44
Beam - Inches55
Beam - Inches96
Weight - Detail135 lbs
Weight - Detail1,392 lbs. (631 kg)
Weight - kg61.23
Weight - kg631.4
Weight - lbs.135
Weight - lbs.1392
Height - DetailSide: 19 in
Height - Detailnot available
Height - Meters0.48
Height - Metersnot available
Height - Inches19
Height - Inchesnot available
Height [transom]15 in
Height [transom]20 in. (0.51 m)
Length - Feet14
Length - Feet17
Length overall - Detail14 ft
Length overall - Detail17 ft. 10 in. (5.43 m)
Length overall - Meters4.27
Length overall - Meters5.44
Length overall - Inches168
Length overall - Inches214
Depth - Detailnot available
Depth - Detail44 in. (1.12 m) Maximum to floor: 25.5 in. (0.65 m)
Depth - Centimetersnot available
Depth - Centimeters111.76
Depth - Inchesnot available
Depth - Inches44
Width [transom] - Detailnot available
Width [transom] - Detail96 in. (2.43 m)
Length - Metersnot available
Length - Meters5.43
Length - Inchesnot available
Length - Inches1
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thickness0.053 in
Hull thicknessBottom: .100 in. (.25 mm) Sides: .080 in. (2.0 mm) 2XB Bow?2nd plate: .100 in. 2XB Bottom?2nd plate: .080 in
Hull typeFlat
Hull typenot available
Engine and Drivetrain
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Horsepower15 hp
Horsepowernot available
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail40 gal. with reserve (169 l)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters151.42
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal4
Engine maxnot available
Engine max175 hp (130 kw)
Operational Info
Maximum capacity625 lbs
Maximum capacitynot available
Maximum people3
Maximum people6

Alumacraft Sierra 1436 LT 2012 vs Alumacraft Trophy 180 2005 — Common Questions

Which is the larger boat — the Alumacraft Sierra 1436 LT 2012 or the Alumacraft Trophy 180 2005?
The Alumacraft Trophy 180 2005 is the longer of the two at 17,0 feet overall. The Alumacraft Sierra 1436 LT 2012 comes in at 14,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Alumacraft Sierra 1436 LT 2012 or the Alumacraft Trophy 180 2005?
For trailering, the Alumacraft Sierra 1436 LT 2012 has the edge at 135 lbs dry weight versus 1 392 lbs for the Alumacraft Trophy 180 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 Trophy 180 2005 is rated to a maximum of 175 hp, giving it the larger power ceiling. The Alumacraft Sierra 1436 LT 2012 tops out at 15 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 Sierra 1436 LT 2012 is Coast Guard rated for 3 passengers, while the Alumacraft Trophy 180 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 Trophy 180 2005 has a better power-to-weight ratio at 8 lbs per hp compared to 9 lbs per hp for the Alumacraft Sierra 1436 LT 2012. 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 Trophy 180 2005 measures 96" wide, compared to 55" for the Alumacraft Sierra 1436 LT 2012. 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 Sierra 1436 LT 2012 and Alumacraft Trophy 180 2005 from the same manufacturer?
Yes — both the Alumacraft Sierra 1436 LT 2012 and the Alumacraft Trophy 180 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.