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S2 79 Fk
Designer: Graham & Schlageter  ·  Builder: S2 Yachts  ·  First built: 1979
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About the S2 79 Fk

Produced by S2 Yachts, a Michigan-based builder with a strong reputation for quality fiberglass construction throughout the 1970s and 1980s, the S2 79 Fk represents the kind of thoughtful American sailboat design that appealed to serious recreational sailors of its era. S2 Yachts was known for producing well-built, performance-oriented boats that balanced speed with comfort, and the 79 Fk fits within that tradition. While detailed specifications for this particular model are limited, the S2 lineup generally favored clean hull lines and responsive sailing characteristics, making their boats well-suited to coastal cruising and club racing. Buyers who appreciate a boat with a pedigree rooted in performance-minded American manufacturing will find the S2 name carries genuine credibility in the used sailboat market. For those researching the 79 Fk as a potential purchase, tracking down original documentation, connecting with S2 owners' communities, or consulting a qualified marine surveyor would be worthwhile steps. As with any vintage production sailboat, hands-on inspection and thorough research will reveal the most about what this particular model has to offer.

Core Dimensions
LOA (Length Overall) 25.92 ft / 7.90 m
LWL (Waterline Length) 21.67 ft / 6.61 m
Beam 9.00 ft / 2.74 m
Max Draft 5.00 ft / 1.52 m
Displacement 4,050.00 lb / 1,837 kg
Ballast 1,550.00 lb / 703 kg
Design & Construction
Hull Type Fin w/transom hung rudder
Rigging Type Masthead Sloop
Construction FG
Designer Graham & Schlageter
Builder S2 Yachts
First Built 1979
Last Built 1987
Number Built 17
Owner Reviews

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Known Issues & What to Watch For

No known issues documented for this model yet.

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Performance Ratios
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
38.27
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
177.68
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 4.18 pounds/inch
Rig Dimensions
I (Foretriangle Height) 20.78
J (Foretriangle Base) 10.00 ft / 3.05 m
P (Mainsail Luff) 329.00 ft² / 30.57 m²
E (Mainsail Foot) 177.68
How It Compares

vs. Cape Dory 26, Capri 26 Catalina, Chrysler 26

This boat Similar boats
Dimensions
LOA
S2 79 Fk ★
25.9 ft
Cape Dory 26
25.9 ft
Capri 26 Catalina
26.0 ft
Chrysler 26
26.0 ft
LWL
S2 79 Fk ★
21.7 ft
Cape Dory 26
19.3 ft
Capri 26 Catalina
22.5 ft
Chrysler 26
22.0 ft
Beam
S2 79 Fk ★
9.0 ft
Cape Dory 26
8.0 ft
Capri 26 Catalina
9.1 ft
Chrysler 26
8.0 ft
Displacement
S2 79 Fk ★
4 lbs
Cape Dory 26
5 lbs
Capri 26 Catalina
4 lbs
Chrysler 26
5 lbs
Ballast
S2 79 Fk ★
1 lbs
Cape Dory 26
2 lbs
Capri 26 Catalina
1 lbs
Chrysler 26
1 lbs
Sail Area
S2 79 Fk ★
Cape Dory 26
304 sq ft
Capri 26 Catalina
268 sq ft
Chrysler 26
Performance
PHRF Rating (lower = faster)
S2 79 Fk ★
Cape Dory 26
237 s/nm
Capri 26 Catalina
213 s/nm
Chrysler 26
228 s/nm
SA / Displacement (higher = more powerful)
S2 79 Fk ★
Cape Dory 26
16.1
Capri 26 Catalina
16.0
Chrysler 26
Ballast / Disp (higher = stiffer)
S2 79 Fk ★
38.3 %
Cape Dory 26
Capri 26 Catalina
37.5 %
Chrysler 26
38.0 %
Comfort Ratio (higher = more comfortable offshore)
S2 79 Fk ★
Cape Dory 26
24.2
Capri 26 Catalina
15.2
Chrysler 26
Capsize Screening (lower = safer)
S2 79 Fk ★
Cape Dory 26
1.84
Capri 26 Catalina
2.22
Chrysler 26
Displacement / Length (lower = lighter)
S2 79 Fk ★
177
Cape Dory 26
Capri 26 Catalina
172
Chrysler 26
209
Hull Speed
S2 79 Fk ★
Cape Dory 26
5.9 kts
Capri 26 Catalina
6.4 kts
Chrysler 26
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