Achilles HB-385 2006 boat specs
Achilles
Achilles HB-385 2006
2006
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VS
Achilles SPD-290 2008 boat specs
Achilles
Achilles SPD-290 2008
2008
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Achilles HB-385 2006 vs Achilles SPD-290 2008 — Same Brand, Different Boat

The Achilles HB-385 2006 vs Achilles SPD-290 2008 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 HB-385 2006 at 12,0 ft versus Achilles SPD-290 2008 at 9,0 ft. Weight tells a clearer story for trailering families: the Achilles HB-385 2006 tips the scales at 211 lbs — 116 lbs more than the Achilles SPD-290 2008 at 95 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 40 hp, the Achilles HB-385 2006 has a 32-hp advantage over the Achilles SPD-290 2008's 8-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 Achilles HB-385 2006 is rated for 6 passengers, while the Achilles SPD-290 2008 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles HB-385 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Achilles HB-385 2006 comes in at 5 lbs per hp versus 12 lbs per hp for the Achilles SPD-290 2008. 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 Achilles HB-385 2006 if your priority is putting more people on the water — it handles 6 passengers and at 12,0 ft it has the deck room to back that rating up comfortably. The Achilles SPD-290 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeAchilles
MakeAchilles
ModelHB-385
ModelSPD-29
Model Year2006
Model Year2008
Measurements / Dimensions
Beam5 ft. 11 in. (163 cm)
Beam5 ft. 2 in. (158 cm)
Beam - Meters1.8
Beam - Meters1.57
Beam - Inches71
Beam - Inches62
Weight - Detail211 lbs. (96 kg)
Weight - Detail95 lbs. (43 kg)
Weight - kg95.71
Weight - kg43.09
Weight - lbs.211
Weight - lbs.95
Length - Feet12
Length - Feet9
Length - Inches8
Length - Inches6
Length overall - Detail12 ft. 8 in. (385 cm)
Length overall - Detail9 ft. 6 in. (290 cm)
Length overall - Meters3.86
Length overall - Meters2.9
Length overall - Inches152
Length overall - Inches114
Pontoon and Inflatable Specific
Tube diameter18 in. (45 cm)
Tube diameter17 in. (43 cm)
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max40 hp (long)
Engine max8 hp
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity1,579 lbs. (718 kg)
Maximum capacity1,230 lbs. (560 kg)
Maximum people6
Maximum people4
Body / Hull
Hull materialnot available
Hull materialInflatable
Hull typenot available
Hull typeInflatable Non Rigid

Achilles HB-385 2006 vs Achilles SPD-290 2008 — Common Questions

Which is the larger boat — the Achilles HB-385 2006 or the Achilles SPD-290 2008?
The Achilles HB-385 2006 is the longer of the two at 12,0 feet overall. The Achilles SPD-290 2008 comes in at 9,0 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 Achilles HB-385 2006 or the Achilles SPD-290 2008?
For trailering, the Achilles SPD-290 2008 has the edge at 95 lbs dry weight versus 211 lbs for the Achilles HB-385 2006. 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 Achilles HB-385 2006 is rated to a maximum of 40 hp, giving it the larger power ceiling. The Achilles SPD-290 2008 tops out at 8 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 Achilles HB-385 2006 is Coast Guard rated for 6 passengers, while the Achilles SPD-290 2008 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 HB-385 2006 has a better power-to-weight ratio at 5 lbs per hp compared to 12 lbs per hp for the Achilles SPD-290 2008. 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 HB-385 2006 measures 71" wide, compared to 62" for the Achilles SPD-290 2008. 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 HB-385 2006 and Achilles SPD-290 2008 from the same manufacturer?
Yes — both the Achilles HB-385 2006 and the Achilles SPD-290 2008 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.