Archambault A27 - Twin keel Twin keel 2012 boat specs
Archambault
Archambault A27 - Twin keel Twin keel 2012
2012
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VS
Archambault A31 2009 boat specs
Archambault
Archambault A31 2009
2009
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Archambault A27 - Twin keel Twin keel 2012 vs Archambault A31 2009 — Same Brand, Different Boat

The Archambault A27 - Twin keel Twin keel 2012 vs Archambault A31 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.

Size is the most obvious dividing line here. The Archambault A31 2009 measures 31,4 feet overall (2009), giving it roughly 3,9 additional feet of deck space compared to the Archambault A27 - Twin keel Twin keel 2012 at 27,5 feet (2012). Weight tells a clearer story for trailering families: the Archambault A31 2009 tips the scales at 6 945 lbs — 2 205 lbs less than the Archambault A27 - Twin keel Twin keel 2012 at 4 740 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.

Both boats share a closely matched power ceiling — 13 hp for the Archambault A27 - Twin keel Twin keel 2012 and 14 hp for the Archambault A31 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 carry nearly identical fuel loads — 8 gal and 11 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Archambault A31 2009 is rated for 9 passengers, while the Archambault A27 - Twin keel Twin keel 2012 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Archambault A31 2009 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Archambault A31 2009 displaces 6 945 lbs — a 2 205-lb difference over the Archambault A27 - Twin keel Twin keel 2012 at 4 740 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Archambault A31 2009 draws 6,2 ft, compared to 3,1 ft for the Archambault A27 - Twin keel Twin keel 2012. That 3,1-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.

The Archambault A27 - Twin keel Twin keel 2012 uses Sloop rigging.

For extended cruising, water capacity matters: the Archambault A31 2009 carries 26 gallons versus 13 gallons on the Archambault A27 - Twin keel Twin keel 2012 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.

Bottom line: The Archambault A31 2009 is the offshore and bluewater choice — at 6 945 lbs displacement and 31 ft it has the load capacity, range, and seakeeping for extended passages. The Archambault A27 - Twin keel Twin keel 2012 at 4 740 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.
Measurements / Dimensions
Length overall - Detail27.50 ft
Length overall - Detail31.40 ft
Length - Feet27.5
Length - Feet31.4
Length overall - Meters8.38
Length overall - Meters9.57
Length overall - Inches330
Length overall - Inches377
Beam9.10 ft
Beam10.70 ft
Beam - Meters2.77
Beam - Meters3.26
Beam - Inches109
Beam - Inches128
Draft [max] - Detail3.10 ft
Draft [max] - Detail6.20 ft
Draft [max] - Meters0.94
Draft [max] - Meters1.89
Draft [max] - Inches37
Draft [max] - Inches74
Displacement4740.00 lbs
Displacement6945.00 lbs
Body / Hull
Rudder1 spade rudder
Rudder1 spade rudder
Helm1 tiller
Helm1 tiller
Engine and Drivetrain
Fuel tank capacity - Gal7.9
Fuel tank capacity - Gal10.6
Fuel tank capacity - Liters29.9
Fuel tank capacity - Liters40.13
Horsepower13 hp
Horsepower14 hp
Drive typeoutboard
Drive typeinboard
Performance
Maximum speed6.7
Maximum speednot available
Maximum speed measureknots
Maximum speed measurenot available
Operational Info
Water capacity13.2
Water capacity26.4
RiggingSloop
RiggingSloop
Mast ConfigurationDeck stepped mast
Mast ConfigurationKeel stepped mast
Boat typeSail
Boat typeSail

Archambault A27 - Twin keel Twin keel 2012 vs Archambault A31 2009 — Common Questions

Which is the larger boat — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault A31 2009?
The Archambault A31 2009 is the longer of the two at 31,4 feet overall. The Archambault A27 - Twin keel Twin keel 2012 comes in at 27,5 feet, making it roughly 3,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault A31 2009?
For trailering, the Archambault A27 - Twin keel Twin keel 2012 has the edge at 4 740 lbs dry weight versus 6 945 lbs for the Archambault A31 2009. 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 Archambault A27 - Twin keel Twin keel 2012 is Coast Guard rated for 8 passengers, while the Archambault A31 2009 is certified for 9. 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 deeper draft — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault A31 2009?
The Archambault A31 2009 has the deeper draft at 6,2 ft, versus 3,1 ft for the Archambault A27 - Twin keel Twin keel 2012. A deeper draft generally means better upwind performance and stability, but limits access to shallow anchorages and some marina berths. Always check the controlling depth of your home port and favourite cruising grounds before committing.
Is the Archambault A27 - Twin keel Twin keel 2012 or the Archambault A31 2009 better suited for offshore sailing?
For offshore work, displacement and construction are the primary indicators. The Archambault A31 2009 at 6 945 lbs displacement is the heavier, more load-carrying design — generally better suited to extended passages where seakeeping and provisioning capacity matter most. The Archambault A27 - Twin keel Twin keel 2012 at 4 740 lbs will typically be livelier and more responsive in lighter conditions.
Which boat is better equipped for long-distance cruising?
For extended passages, fresh water capacity is a key indicator of cruising readiness. The Archambault A31 2009 carries 26 gallons of fresh water compared to 13 gallons on the Archambault A27 - Twin keel Twin keel 2012 — a meaningful advantage when watermaker installations or port stops aren't guaranteed.
Which boat is wider, and does it affect trailering?
The Archambault A31 2009 measures 128" wide, compared to 109" for the Archambault A27 - Twin keel Twin keel 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.
Which boat has the larger fuel tank — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault A31 2009?
The Archambault A31 2009 has the bigger tank at 11 gallons, versus 8 gallons on the Archambault A27 - Twin keel Twin keel 2012. That 2-gallon difference translates to roughly 8–13 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Archambault A27 - Twin keel Twin keel 2012 and Archambault A31 2009 from the same manufacturer?
Yes — both the Archambault A27 - Twin keel Twin keel 2012 and the Archambault A31 2009 are built by Archambault. 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.