Achilles KSB-116 2007 boat specs
Achilles
Achilles KSB-116 2007
2007
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VS
Achilles LSI-310 2011 boat specs
Achilles
Achilles LSI-310 2011
2011
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Achilles KSB-116 2007 vs Achilles LSI-310 2011 — Same Brand, Different Boat

The Achilles KSB-116 2007 vs Achilles LSI-310 2011 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 KSB-116 2007 at 11,0 ft versus Achilles LSI-310 2011 at 10,2 ft. At 46 lbs and 79 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.

The Achilles LSI-310 2011 tops out at 10 hp. Engine specs for the Achilles KSB-116 2007 aren't listed — confirm with a dealer before selecting an outboard.

For family outings this is probably the sharpest distinction between the two. The Achilles LSI-310 2011 is rated for 4 passengers, while the Achilles KSB-116 2007 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles LSI-310 2011 could be the deciding factor.

The Achilles LSI-310 2011 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Achilles KSB-116 2007 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.

Bottom line: Choose the Achilles LSI-310 2011 if your priority is putting more people on the water — it handles 4 passengers and at 10,2 ft it has the deck room to back that rating up comfortably. The Achilles KSB-116 2007 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
MakeAchilles
MakeAchilles
ModelKSB-116
ModelLSI-31
Model Year2007
Model Year2011
Measurements / Dimensions
Beam3 ft. 1 in
Beam5 ft. 2 in. (158 cm) 2 ft. 4 in. (72 cm) inside
Beam - Meters0.94
Beam - Meters1.57
Beam - Inches37
Beam - Inches62
Weight - Detail46 lbs
Weight - Detail79 lbs. (36 kg)
Weight - kg20.87
Weight - kg35.83
Weight - lbs.46
Weight - lbs.79
Length - Feet11
Length - Feet10.17
Length - Inches6
Length - Inchesnot available
Length overall - Detail11 ft. 6 in
Length overall - Detail10 ft. 2 in. (310 cm)
Length overall - Meters3.51
Length overall - Meters3.1
Length overall - Inches138
Length overall - Inches122
Length [deck]not available
Length [deck]7 ft. 3 in. (220 cm) inside
Pontoon and Inflatable Specific
Tube diameter11.2 in
Tube diameter17 in. (43 cm)
Number of tubesnot available
Number of tubes3 air chambers, plus keel and floor
Body / Hull
Hull materialnot available
Hull materialInflatable
Hull typenot available
Hull typeInflatable Non Rigid
Engine and Drivetrain
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Engine maxnot available
Engine max10 hp
Operational Info
Maximum capacitynot available
Maximum capacity1,320 lbs. (600 kg)
Maximum peoplenot available
Maximum people4

Achilles KSB-116 2007 vs Achilles LSI-310 2011 — Common Questions

Which is the larger boat — the Achilles KSB-116 2007 or the Achilles LSI-310 2011?
The Achilles KSB-116 2007 is the longer of the two at 11,0 feet overall. The Achilles LSI-310 2011 comes in at 10,2 feet, making it roughly 0,8 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Achilles KSB-116 2007 or the Achilles LSI-310 2011?
For trailering, the Achilles KSB-116 2007 has the edge at 46 lbs dry weight versus 79 lbs for the Achilles LSI-310 2011. 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.
What is the maximum horsepower rating for these boats?
The Achilles LSI-310 2011 has a documented max rating of 10 hp. Engine specifications for the Achilles KSB-116 2007 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Achilles KSB-116 2007 is Coast Guard rated for 3 passengers, while the Achilles LSI-310 2011 is certified for 4. 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 Achilles LSI-310 2011 measures 62" wide, compared to 37" for the Achilles KSB-116 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 Achilles KSB-116 2007 and Achilles LSI-310 2011 from the same manufacturer?
Yes — both the Achilles KSB-116 2007 and the Achilles LSI-310 2011 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.