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CAL T/4

Built by Jensen Marine (USA) • Designed by C. William Lapworth
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CAL T/4 - Photo
CAL T/4 - Drawing

General Information

Hull Type: Fin w/transom hung rudder
Rigging Type: Masthead Sloop
Construction: FG
First Built: 1971
Last Built: 1972
Number Built: 238

Dimensions

Length Overall (LOA): 7.37 m
Length Waterline (LWL): 6.40 m
Beam: 2.44 m
Draft (Max): 1.22 m

Weight & Ballast

Displacement: 1,814 kg
Ballast: 907 kg

Sail Plan

Foresail Area: 13.94 m²
Mainsail Area: 9.87 m²
Total Sail Area (calculated): 23.81 m²
Sail Area (reported): 23.78 m²
I (Fore Triangle Height): 9.14 m
J (Fore Triangle Base): 3.05 m
P (Mainsail Hoist): 7.19 m
E (Boom Length): 2.74 m

Engine & Systems

Performance Ratios

Hull Speed: 6.14 knots
SA/Displacement (Calculated): 16.00
SA/Displacement (Reported): 16.30
Ballast/Disp Ratio: 50.00%
Displacement/Length: 192.82
Comfort Ratio: 17.64
Capsize Screening: 2.02
S-Number: 2.71

Notes

Designed as IOR 1/4 ton.