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Sailboat Specifications

Cal 48

Masthead Sloop · Fin W/Spade Rudder

Designed by C. William Lapworth · Built by Jensen Marine (Usa) · First built 1966

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LOA 47.75 ft  ·  Beam 12.00 ft  ·  Displacement 25,000.00 lb  ·  Sail Area 1041  ·  Masthead Sloop  ·  Fin W/Spade Rudder
About the Cal 48 Sailboat

Built during California's golden age of fiberglass yacht construction, this substantial cruising sailboat represents the Cal Yachts philosophy of combining performance with livability. The Cal 48 emerged from a design tradition that prioritized both coastal cruising comfort and the capability to handle longer passages with confidence. Like other vessels in the Cal lineup, the 48 showcases thoughtful proportions that balance sailing performance with interior volume. The design reflects the West Coast cruising aesthetic of the era, emphasizing clean lines and practical deck layouts that make single-handed or short-handed sailing manageable. Her size places her firmly in serious cruising territory, offering the displacement and stability needed for extended coastal voyaging or offshore passages. The Cal 48 attracts sailors seeking a proven platform for ambitious cruising plans without sacrificing sailing characteristics. Her design lineage connects to Cal's reputation for building boats that sail well while providing the creature comforts necessary for extended time aboard. This makes her particularly appealing to couples or small crews planning significant coastal exploration or contemplating offshore adventures where reliability and seaworthiness matter most.

Dimensions & Specifications
LOA (Length Overall) 47.75 ft / 14.55 m
LWL (Waterline Length) 35.00 ft / 10.67 m
Beam 12.00 ft / 3.66 m
Max Draft 6.50 ft / 1.98 m
Displacement 25,000.00 lb / 11,340 kg
Ballast 9,500.00 lb / 4,309 kg
Ballast Type Lead
Sail Area (Reported) 1041
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer C. William Lapworth
Builder Jensen Marine (USA)
First Built 1966
Last Built 1970
Number Built 24
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Engine & Accommodations
Fuel Capacity 60 gals / 227 L
Water Capacity 110 gals / 416 L
Frequently Asked Questions

What is the Cal 48's sail area to displacement ratio?

The Cal 48 has a Sail Area to Displacement ratio (SA/D) of 19.56. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Cal 48's comfort ratio?

The Cal 48 has a Ted Brewer Comfort Ratio of 36.36. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Cal 48 safe for offshore sailing?

The Cal 48 has a Capsize Screening Formula value of 1.64. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Cal 48?

The theoretical hull speed of the Cal 48 is 7.93 knots, calculated from its waterline length.

How much does a Cal 48 weigh?

The Cal 48 has a displacement of 25,000.00 lb and a length overall (LOA) of 47.75 ft.

Who designed the Cal 48?

The Cal 48 was designed by C. William Lapworth, first built in 1966.