Archambault A27 - Twin keel Twin keel 2012 boat specs
Archambault
Archambault A27 - Twin keel Twin keel 2012
2012
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VS
Archambault Grand Surprise 1999 boat specs
Archambault
Archambault Grand Surprise 1999
1999
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Archambault A27 - Twin keel Twin keel 2012 vs Archambault Grand Surprise 1999 — Same Brand, Different Boat

The Archambault A27 - Twin keel Twin keel 2012 vs Archambault Grand Surprise 1999 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 Grand Surprise 1999 measures 31,4 feet overall (1999), 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 Grand Surprise 1999 tips the scales at 5 842 lbs — 1 102 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 19 hp for the Archambault Grand Surprise 1999. 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.

For family outings this is probably the sharpest distinction between the two. The Archambault Grand Surprise 1999 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 Grand Surprise 1999 could be the deciding factor.

Both boats sit in a similar displacement bracket — 4 740 lbs for the Archambault A27 - Twin keel Twin keel 2012 and 5 842 lbs for the Archambault Grand Surprise 1999. Comparable displacement means broadly similar seakeeping behaviour and load capacity, though hull form and ballast ratio will still produce noticeably different sailing characteristics.

Draft is a practical consideration that many buyers underestimate until they're already at the marina. The Archambault Grand Surprise 1999 draws 6,8 ft, compared to 3,1 ft for the Archambault A27 - Twin keel Twin keel 2012. That 3,7-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 auxiliary power the Archambault Grand Surprise 1999 carries a 19-hp engine against 13 hp on the Archambault A27 - Twin keel Twin keel 2012. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.

Hull speed is rated at 7,3 knots for the Archambault Grand Surprise 1999 and 6,7 knots for the Archambault A27 - Twin keel Twin keel 2012.

Bottom line: The Archambault Grand Surprise 1999 at 31,4 ft offers more living space, greater range, and a more substantial offshore capability. The Archambault A27 - Twin keel Twin keel 2012 at 27,5 ft is the easier, lower-cost option — simpler to crew and a strong choice for coastal and day 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
Beam9.10 ft
Beam - Meters2.77
Beam - Meters2.77
Beam - Inches109
Beam - Inches109
Draft [max] - Detail3.10 ft
Draft [max] - Detail6.80 ft
Draft [max] - Meters0.94
Draft [max] - Meters2.07
Draft [max] - Inches37
Draft [max] - Inches82
Displacement4740.00 lbs
Displacement5842.00 lbs
Body / Hull
Rudder1 spade rudder
Rudder1 spade rudder
Helm1 tiller
Helm1 tiller
Engine and Drivetrain
Fuel tank capacity - Gal7.9
Fuel tank capacity - Galnot available
Fuel tank capacity - Liters29.9
Fuel tank capacity - Litersnot available
Horsepower13 hp
Horsepower19 hp
Drive typeoutboard
Drive typeinboard
Performance
Maximum speed6.7
Maximum speed7.25
Maximum speed measureknots
Maximum speed measureknots
Operational Info
Water capacity13.2
Water capacitynot available
RiggingSloop
RiggingSloop
Mast ConfigurationDeck stepped mast
Mast ConfigurationKeel stepped mast
Boat typeSail
Boat typeSail

Archambault A27 - Twin keel Twin keel 2012 vs Archambault Grand Surprise 1999 — Common Questions

Which is the larger boat — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault Grand Surprise 1999?
The Archambault Grand Surprise 1999 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 Grand Surprise 1999?
For trailering, the Archambault A27 - Twin keel Twin keel 2012 has the edge at 4 740 lbs dry weight versus 5 842 lbs for the Archambault Grand Surprise 1999. 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 Archambault Grand Surprise 1999 is rated to a maximum of 19 hp, giving it the larger power ceiling. The Archambault A27 - Twin keel Twin keel 2012 tops out at 13 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 Archambault A27 - Twin keel Twin keel 2012 is Coast Guard rated for 8 passengers, while the Archambault Grand Surprise 1999 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 Grand Surprise 1999?
The Archambault Grand Surprise 1999 has the deeper draft at 6,8 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 Grand Surprise 1999 better suited for offshore sailing?
For offshore work, displacement and construction are the primary indicators. The Archambault Grand Surprise 1999 at 5 842 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 is the faster sailboat — the Archambault A27 - Twin keel Twin keel 2012 or the Archambault Grand Surprise 1999?
Based on rated hull speed, the Archambault Grand Surprise 1999 has an edge at 7,3 knots versus 6,7 knots for the Archambault A27 - Twin keel Twin keel 2012. Keep in mind that actual sailing speed depends heavily on wind conditions, sail trim, bottom condition, and skipper experience — hull speed is a theoretical maximum, not a guarantee.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Archambault A27 - Twin keel Twin keel 2012 and Archambault Grand Surprise 1999 share an 9.10 ft 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 Archambault A27 - Twin keel Twin keel 2012 and Archambault Grand Surprise 1999 from the same manufacturer?
Yes — both the Archambault A27 - Twin keel Twin keel 2012 and the Archambault Grand Surprise 1999 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.