Jensen Marine Cal 28
Sailboat
28′
Since 1963
Overview
- Builder
- Jensen Marine
- Model
- Cal 28
- Type
- Sailboat
- Built
- 1963–1969
- Designer
- C. W. Lapworth
- Hull
- Fin w/spade rudder
- Hull material
- Fiberglass
- Rig
- Masthead Sloop
Dimensions
- Length overall
- 28′ (8.53 m)
- Waterline length
- 22′ 6″ (6.86 m)
- Beam
- 9′ (2.74 m)
- Displacement
- 6,000 lb (2,722 kg)
- Ballast
- 2,200 lb (998 kg)
Sails and rig
- Sail area
- 365 sq ft (33.9 m²)
- I (foretriangle height)
- 33′ (10.06 m)
- J (foretriangle base)
- 11′ 5″ (3.47 m)
- P (mainsail luff)
- 28′ (8.53 m)
- E (mainsail foot)
- 11′ 8″ (3.57 m)
Design ratios
- Sail area / displacement
- 17.7
- Displacement / length
- 235
- Ballast ratio
- 37%
- Capsize screening
- 1.98
Power from the sails for the boat's weight. Under 16 is modest, 16–20 a typical cruiser, over 20 lively.
How heavy the boat is for its waterline. Under 200 is light, 200–300 moderate, over 300 heavy.
Share of the weight that is ballast. Higher generally means stiffer in a breeze.
Under 2 is generally considered better for offshore use.
More details
- Ballast Type
- Lead
- Construction
- FG
Data from Mauri Pro Sailboat Data. Check details with the builder before relying on them.