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Sailboat Specifications

Ajax 28

Masthead Sloop · Fin W/Spade Rudder

Designed by C&C · Built by Ajax (Can) · First built 1978

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LOA 27.95 ft  ·  Beam 9.00 ft  ·  Displacement 6,200.00 lb  ·  Sail Area 364.00 ft²  ·  Masthead Sloop  ·  Fin W/Spade Rudder
About the Ajax 28 Sailboat

Designed by C&C and built by Ajax in Canada from 1978 to 1982, this 28-footer represents a relatively rare find with only 12 hulls produced during its brief four-year production run. The Ajax 28 showcases the classic late-1970s approach to performance cruising, featuring a fin keel with spade rudder configuration that delivers responsive handling and efficient upwind performance. With a displacement of 6,200 pounds and 2,700 pounds of ballast, this fiberglass sloop strikes a reasonable balance between stability and performance. The masthead sloop rig carries 364 square feet of sail area, providing adequate power for coastal cruising and weekend sailing. Her moderate beam of 9 feet keeps marina costs reasonable while still offering decent interior volume for a boat this size. The comfort ratio of 20.86 suggests a motion that favors performance over ultimate stability, making her best suited for coastal waters rather than extended offshore passages. Her capsize screening formula of 1.96 falls within acceptable ranges for near-shore sailing. The 5-foot draft provides good upwind ability while limiting access to some shallow cruising grounds. Given C&C's reputation for well-balanced designs, the Ajax 28 likely appeals to sailors seeking a capable coastal cruiser with respectable sailing characteristics in a manageable package.

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Dimensions & Specifications
LOA (Length Overall) 27.95 ft / 8.52 m
LWL (Waterline Length) 23.17 ft / 7.06 m
Beam 9.00 ft / 2.74 m
Max Draft 5.00 ft / 1.52 m
Displacement 6,200.00 lb / 2,812 kg
Ballast 2,700.00 lb / 1,225 kg
Sail Area (Reported) 364.00 ft² / 33.82 m²
Headroom 6.00 ft / 1.83 m
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer C&C
Builder Ajax (CAN)
First Built 1978
Last Built 1982
Number Built 12
Related Sailboats Mirage 27 Perry · Tanzer 85 · Islander 28 · Catalina 28
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Engine & Accommodations
Engine Make Yanmar
Engine Type Diesel
Horsepower 12
Frequently Asked Questions

What is the Ajax 28's sail area to displacement ratio?

The Ajax 28 has a Sail Area to Displacement ratio (SA/D) of 17.31. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Ajax 28's comfort ratio?

The Ajax 28 has a Ted Brewer Comfort Ratio of 20.86. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Ajax 28 safe for offshore sailing?

The Ajax 28 has a Capsize Screening Formula value of 1.96. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Ajax 28?

The theoretical hull speed of the Ajax 28 is 6.45 kn knots, calculated from its waterline length.

How much does a Ajax 28 weigh?

The Ajax 28 has a displacement of 6,200.00 lb and a length overall (LOA) of 27.95 ft.

Who designed the Ajax 28?

The Ajax 28 was designed by C&C, first built in 1978.