Beneteau First 21.7 Swing keel 2004 boat specs
Beneteau
Beneteau First 21.7 Swing keel 2004
2004
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VS
Beneteau First 27.7 S 2002 boat specs
Beneteau
Beneteau First 27.7 S 2002
2002
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Beneteau First 21.7 Swing keel 2004 vs Beneteau First 27.7 S 2002 — Same Brand, Different Boat

The Beneteau First 21.7 Swing keel 2004 vs Beneteau First 27.7 S 2002 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 Beneteau First 27.7 S 2002 measures 27,2 feet overall (2002), giving it roughly 6,2 additional feet of deck space compared to the Beneteau First 21.7 Swing keel 2004 at 21,0 feet (2004). Weight tells a clearer story for trailering families: the Beneteau First 27.7 S 2002 tips the scales at 6 603 lbs — 3 858 lbs less than the Beneteau First 21.7 Swing keel 2004 at 2 745 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 — 11 hp for the Beneteau First 21.7 Swing keel 2004 and 14 hp for the Beneteau First 27.7 S 2002. 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 Beneteau First 27.7 S 2002 is rated for 8 passengers, while the Beneteau First 21.7 Swing keel 2004 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau First 27.7 S 2002 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau First 27.7 S 2002 displaces 6 603 lbs — a 3 858-lb difference over the Beneteau First 21.7 Swing keel 2004 at 2 745 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 Beneteau First 21.7 Swing keel 2004 draws 5,1 ft, compared to 4,1 ft for the Beneteau First 27.7 S 2002. That 1,0-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 Beneteau First 21.7 Swing keel 2004 uses Sloop rigging.

The Beneteau First 21.7 Swing keel 2004 is trailerable, giving it a significant lifestyle advantage for sailors who want to move between lakes, rivers, and coastal waters without committing to a marina slip. Hull speed is rated at 7,0 knots for the Beneteau First 27.7 S 2002 and 6,0 knots for the Beneteau First 21.7 Swing keel 2004.

Bottom line: The Beneteau First 27.7 S 2002 is the offshore and bluewater choice — at 6 603 lbs displacement and 27 ft it has the load capacity, range, and seakeeping for extended passages. The Beneteau First 21.7 Swing keel 2004 at 2 745 lbs is the more nimble, accessible option and is trailerable — easier to single-hand and better suited to coastal and inland sailing.
Measurements / Dimensions
Length overall - Detail21.00 ft
Length overall - Detail27.20 ft
Length - Feet21
Length - Feet27.2
Length overall - Meters6.4
Length overall - Meters8.29
Length overall - Inches252
Length overall - Inches326
Beam8.10 ft
Beam9.10 ft
Beam - Meters2.47
Beam - Meters2.77
Beam - Inches97
Beam - Inches109
Draft [max] - Detail5.11 ft
Draft [max] - Detail4.10 ft
Draft [max] - Meters1.56
Draft [max] - Meters1.25
Draft [max] - Inches61
Draft [max] - Inches49
Displacement2745.00 lbs
Displacement6603.00 lbs
Body / Hull
Rudder2 spade rudders
Rudder1 transom hung rudder
Helm1 tiller
Helm1 tiller
Engine and Drivetrain
Horsepower11 hp
Horsepower14 hp
Fuel typeGas
Fuel typeDiesel
Drive typeoutboard
Drive typeinboard
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal7.9
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters29.9
Performance
Maximum speed5.95
Maximum speed6.99
Maximum speed measureknots
Maximum speed measureknots
Operational Info
Sleeping capacity4
Sleeping capacity4
Water capacity9.2
Water capacity13.2
TrailerableYes
Trailerablenot available
RiggingSloop
RiggingSloop
Mast ConfigurationDeck stepped mast
Mast ConfigurationDeck stepped mast
Boat typeSail
Boat typeSail
Cabinsnot available
Cabins1
Headnot available
Head1
Holding tank capacity - Galnot available
Holding tank capacity - Gal13.2
Holding tank capacity - Litersnot available
Holding tank capacity - Liters49.97

Beneteau First 21.7 Swing keel 2004 vs Beneteau First 27.7 S 2002 — Common Questions

Which is the larger boat — the Beneteau First 21.7 Swing keel 2004 or the Beneteau First 27.7 S 2002?
The Beneteau First 27.7 S 2002 is the longer of the two at 27,2 feet overall. The Beneteau First 21.7 Swing keel 2004 comes in at 21,0 feet, making it roughly 6,2 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Beneteau First 21.7 Swing keel 2004 or the Beneteau First 27.7 S 2002?
For trailering, the Beneteau First 21.7 Swing keel 2004 has the edge at 2 745 lbs dry weight versus 6 603 lbs for the Beneteau First 27.7 S 2002. 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 Beneteau First 21.7 Swing keel 2004 is Coast Guard rated for 6 passengers, while the Beneteau First 27.7 S 2002 is certified for 8. 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 Beneteau First 21.7 Swing keel 2004 or the Beneteau First 27.7 S 2002?
The Beneteau First 21.7 Swing keel 2004 has the deeper draft at 5,1 ft, versus 4,1 ft for the Beneteau First 27.7 S 2002. 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 Beneteau First 21.7 Swing keel 2004 or the Beneteau First 27.7 S 2002 better suited for offshore sailing?
For offshore work, displacement and construction are the primary indicators. The Beneteau First 27.7 S 2002 at 6 603 lbs displacement is the heavier, more load-carrying design — generally better suited to extended passages where seakeeping and provisioning capacity matter most. The Beneteau First 21.7 Swing keel 2004 at 2 745 lbs will typically be livelier and more responsive in lighter conditions.
Can the Beneteau First 21.7 Swing keel 2004 be trailered?
The Beneteau First 21.7 Swing keel 2004 is listed as trailerable, giving owners the flexibility to launch from any suitable ramp and avoid permanent berthing costs. The Beneteau First 27.7 S 2002 is not listed as trailerable — it will need a marina berth or mooring.
Which is the faster sailboat — the Beneteau First 21.7 Swing keel 2004 or the Beneteau First 27.7 S 2002?
Based on rated hull speed, the Beneteau First 27.7 S 2002 has an edge at 7,0 knots versus 6,0 knots for the Beneteau First 21.7 Swing keel 2004. 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.
Which boat is wider, and does it affect trailering?
The Beneteau First 27.7 S 2002 measures 109" wide, compared to 97" for the Beneteau First 21.7 Swing keel 2004. 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 Beneteau First 21.7 Swing keel 2004 and Beneteau First 27.7 S 2002 from the same manufacturer?
Yes — both the Beneteau First 21.7 Swing keel 2004 and the Beneteau First 27.7 S 2002 are built by Beneteau. 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.