S2 6.9 Sailboat Review, Specs, and Listings

Don Wennersten/Graham & Schlageter·1983 – 1986·~174 hulls·S2 Yachts
S2 6.9 drawingBuilder drawing
Hull Type
Monohull · lifting
Rig
Fractional Sloop
LOA
22' · 6.71 m
Disp.
2,200 lbs · 998 kg
First year
1983

The S2 6.9 — also sold as the S2 6.9 Grand Slam — is an American trailerable sailboat from the early 1980s, a 22foot racercruiser drawn by Don Wennersten together with Graham & Schlageter for S2 Yachts of Holland, Michigan. Derived from the 1980 S2 6.7 and carrying the same Wennerstendesigned hull, it represents the light, highperformance end of the S2 range, the socalled Grand Slam racing models built with balsacored hulls and decks to save weight and add stiffness. Production ran from 1983 until 1986 with 174 examples completed before the design went out of production, and it later spawned the wingkeel S2 22 in 1985.

Measurements

Dimensions 01

Length Overall
22 ft
Length on deck
Waterline Length
18.75 ft
Beam
8 ft
Draft
4.5 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Lifting
Rudder
1× —
Ballast
770 lbs (Lead)
Displacement
2,200 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
25.3 ft
Mainsail foot
10 ft
Foretriangle height
26 ft
Foretriangle base
7.8 ft
Forestay Length (estimated)
27.14 ft
Sail Area
228 sqft

Calculations 04

Sail Area to Displacement Ratio
21.56
Ballast to Displacement Ratio
35
Displacement to Length Ratio
148.99
Comfort Ratio
10.8
Capsize Screening Ratio
2.46
Hull Speed
5.8 kn

Design and Construction

At 22 feet overall on an 18-foot-7 waterline, with an 8-foot beam and 2,200 pounds displacement, the 6.9 is a compact monohull carrying 770 pounds of ballast in a lifting keel. S2 built its racing and Grand Slam models, this boat among them, with balsa-cored hulls and balsa-cored decks rather than the solid-glass cruising hulls elsewhere in the range, a choice aimed at maximum stiffness for the weight. The hull itself is predominantly fiberglass with wood trim, a raked stem, and a plumb transom carrying a transom-hung rudder on a tiller. The lifting keel is raised and lowered by a winch from the cockpit, giving a draft range from 4 feet 6 inches down to about 10 inches with the board up — a smooth-bottomed, trailer-friendly profile that period testers counted among its best features for launch and retrieval.

Rig and Handling

The 6.9 is a fractional-rigged sloop on a Bermuda rig, with a sail area of 228 square feet and a standard rig dimension of 26 feet on the foretriangle hoist and 7.83 feet on the base. The fractional layout and light displacement make her a lively performer: the manufacturer's spec describes her as handling light airs like a champ and reaching speeds up to eight knots in a breeze, and the same source calls her a forgiving yet competitive pocket rocket, perfectly suited to club racing. S2 brought in Graham & Schlageter to revise the cockpit, cabin, sailplan, and keel from the 6.7 parent, though the outcome was a boat no faster than that earlier design. Her PHRF rating stands at 205, a number consistent with a small, quick planing-type racer-cruiser rather than a heavy cruiser.

Accommodations

Below, the 6.9 sleeps four: a double V-berth fills the bow cabin, while two straight settees line the main cabin. The galley sits to port just aft of the bow cabin with an ice box, and the head is opposite to starboard, tucked beside the keel trunk. The arrangement is minimal but functional for a 22-footer, trading cabin volume for the racing weight discipline the design pursued.

Known Issues

The lifting keel is the one system that demands respect. The keel assembly weighs 430 pounds and is lifted straight up on a winch, a heavy, load-bearing component whose pivot and trunk live in the cabin sole beside the head. On a boat of this size, that mass cycling up and down through a trunk penetrating the hull is the obvious fatigue and leakage path, and any owner should treat keel pennant, winch, and trunk seals as primary wear items.

The Verdict

The S2 6.9 is a focused little racer-cruiser that inherits a proven Wennersten hull and wraps it in a lighter, balsa-cored Grand Slam structure with a practical lifting keel for trailering. It is quick, forgiving, and easy to launch, but it is no faster than the 6.7 it grew from, and its lifting keel is a heavy, maintenance-sensitive element on a small boat.

Pros

  • Light, stiff balsa-cored hull and deck from the Grand Slam racing series
  • Lifting keel gives 10-inch trailering draft and easy launch/retrieval
  • Lively fractional sloop that handles light air and reaches eight knots
  • Sleeps four with practical V-berth and settee layout

Cons

  • No faster than the earlier S2 6.7 despite redesign work
  • 430-pound lifting keel is a heavy, wear-prone cockpit-winched system

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