Achilles LS4-RU 2007 boat specs
Achilles
Achilles LS4-RU 2007
2007
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Achilles LT-4 2009 boat specs
Achilles
Achilles LT-4 2009
2009
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Achilles LS4-RU 2007 vs Achilles LT-4 2009 — Same Brand, Different Boat

The Achilles LS4-RU 2007 vs Achilles LT-4 2009 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 LS4-RU 2007 at 8,0 ft versus Achilles LT-4 2009 at 8,5 ft. At 63 lbs and 57 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 — 6 hp for the Achilles LS4-RU 2007 and 3 hp for the Achilles LT-4 2009. 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 4 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 LS4-RU 2007 comes in at 11 lbs per hp versus 19 lbs per hp for the Achilles LT-4 2009. 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: The Achilles LS4-RU 2007 and Achilles LT-4 2009 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
ModelLS4-RU
ModelLT-4
Model Year2007
Model Year2009
Measurements / Dimensions
Beam4 ft. 8 in. (142 cm)
Beam4 ft. 8 in. (142 cm) 2 ft. 2 in. (66 cm) inside
Beam - Meters1.42
Beam - Meters1.42
Beam - Inches56
Beam - Inches56
Weight - Detail63 lbs. (28.5 kg)
Weight - Detail57 lbs. (26 kg)
Weight - kg28.58
Weight - kg25.85
Weight - lbs.63
Weight - lbs.57
Length - Feet8
Length - Feet8.5
Length - Inches8
Length - Inchesnot available
Length overall - Detail8 ft. 8 in. (265 cm)
Length overall - Detail8 ft. 6 in. (260 cm)
Length overall - Meters2.64
Length overall - Meters2.59
Length overall - Inches104
Length overall - Inches102
Pontoon and Inflatable Specific
Tube diameter15 in. (38 cm)
Tube diameter15 in. (38 cm)
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max6 hp
Engine max3 hp
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity840 lbs. (380 kg)
Maximum capacity990 lbs. (450 kg)
Maximum people4
Maximum people4
Body / Hull
Hull materialnot available
Hull materialInflatable
Hull typenot available
Hull typeInflatable Non Rigid

Achilles LS4-RU 2007 vs Achilles LT-4 2009 — Common Questions

Which is the larger boat — the Achilles LS4-RU 2007 or the Achilles LT-4 2009?
The Achilles LT-4 2009 is the longer of the two at 8,5 feet overall. The Achilles LS4-RU 2007 comes in at 8,0 feet, making it roughly 0,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Achilles LS4-RU 2007 or the Achilles LT-4 2009?
For trailering, the Achilles LT-4 2009 has the edge at 57 lbs dry weight versus 63 lbs for the Achilles LS4-RU 2007. 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 LS4-RU 2007 is Coast Guard rated for 4 passengers, while the Achilles LT-4 2009 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 has the better power-to-weight ratio?
The Achilles LS4-RU 2007 has a better power-to-weight ratio at 11 lbs per hp compared to 19 lbs per hp for the Achilles LT-4 2009. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Achilles LS4-RU 2007 and Achilles LT-4 2009 share an 4 ft. 8 in. (142 cm) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Are the Achilles LS4-RU 2007 and Achilles LT-4 2009 from the same manufacturer?
Yes — both the Achilles LS4-RU 2007 and the Achilles LT-4 2009 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.