Achilles LSI-77 2007 boat specs
Achilles
Achilles LSI-77 2007
2007
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Achilles LT-2 2012 boat specs
Achilles
Achilles LT-2 2012
2012
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Achilles LSI-77 2007 vs Achilles LT-2 2012 — Same Brand, Different Boat

The Achilles LSI-77 2007 vs Achilles LT-2 2012 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 — Achilles LSI-77 2007 at 7,0 ft versus Achilles LT-2 2012 at 7,3 ft. At 6 lbs and 37 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling — 4 hp for the Achilles LSI-77 2007 and 3 hp for the Achilles LT-2 2012. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

Both boats are rated for 2 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

At this size, power-to-weight ratio matters more than outright horsepower. The Achilles LSI-77 2007 comes in at 2 lbs per hp versus 12 lbs per hp for the Achilles LT-2 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.

The Achilles LT-2 2012 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Achilles LSI-77 2007 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.

Bottom line: The Achilles LSI-77 2007 and Achilles LT-2 2012 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeAchilles
MakeAchilles
ModelLSI-77
ModelLT-2
Model Year2007
Model Year2012
Measurements / Dimensions
Beam4 ft. 9 in. (144 cm)
Beam4 ft. 1 in. (124 cm) 1 ft. 11 in. (58 cm) inside
Beam - Meters1.45
Beam - Meters1.24
Beam - Inches57
Beam - Inches49
Weight - Detail60 lbs. (27 kg)
Weight - Detail37 lbs. (16.5 kg)
Weight - kg27.22
Weight - kg16.78
Weight - lbs.6
Weight - lbs.37
Length - Feet7
Length - Feet7.25
Length - Inches7
Length - Inchesnot available
Length overall - Detail7 ft. 7 in. (230 cm)
Length overall - Detail7 ft. 3 in. (220 cm)
Length overall - Meters2.31
Length overall - Meters2.21
Length overall - Inches91
Length overall - Inches87
Length [deck]not available
Length [deck]5 ft. (153 cm) inside
Pontoon and Inflatable Specific
Tube diameter15.5 in. (39 cm)
Tube diameter13 in. (33 cm)
Number of tubesnot available
Number of tubes2 air chambers
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max4 hp
Engine max3 hp
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity770 lbs. (350 kg)
Maximum capacity640 lbs. (290 kg)
Maximum people2
Maximum people2
Body / Hull
Hull materialnot available
Hull materialInflatable
Hull typenot available
Hull typeInflatable Non Rigid

Achilles LSI-77 2007 vs Achilles LT-2 2012 — Common Questions

Which is the larger boat — the Achilles LSI-77 2007 or the Achilles LT-2 2012?
The Achilles LT-2 2012 is the longer of the two at 7,3 feet overall. The Achilles LSI-77 2007 comes in at 7,0 feet, making it roughly 0,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Achilles LSI-77 2007 or the Achilles LT-2 2012?
For trailering, the Achilles LSI-77 2007 has the edge at 6 lbs dry weight versus 37 lbs for the Achilles LT-2 2012. 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.
How many people can each boat hold?
The Achilles LSI-77 2007 is Coast Guard rated for 2 passengers, while the Achilles LT-2 2012 is certified for 2. 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 Achilles LSI-77 2007 has a better power-to-weight ratio at 2 lbs per hp compared to 12 lbs per hp for the Achilles LT-2 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 Achilles LSI-77 2007 measures 57" wide, compared to 49" for the Achilles LT-2 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 Achilles LSI-77 2007 and Achilles LT-2 2012 from the same manufacturer?
Yes — both the Achilles LSI-77 2007 and the Achilles LT-2 2012 are built by Achilles. 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.