CAL 31

Main

Appendages
Fin w/spade rudder
Construction
FG
First built hull
1979
Hull type
Monohull
Last built hull
1984
Model
CAL 31
Sailboat builder
Bangor Punta Marine
Sailboat designer
William Lapworth

Dimensions

Ballast Type
Lead
Ballast weight
1633.0
Beam
3.05
Displacement
4159.0
Draft
1.52
Mast height from DWL
13.84
Max Draft
1.52
Overall length
9.6
Waterline length
7.82

Sails

E
3.66
Est. Forestay Length
13.3
Fore area
26.02
I
12.65
J
4.11
Mainsail area
19.51
P
10.67
Total area
45.52

Engine

Engine(s) power
16.0
Engines amount
1
Fuel tank capacity
76.0
Fuel type
Diesel
Make
Universal

Performance

Ballast ratio
39.26
Capsize Screening Formula
1.91
Comfort Ratio
24.07
Critical hull speed
6.79
Displacement-length ratio (DLR)
242.02
Upwind sail area to displacement
17.95

Accomodation

Freshwater tank capacity
212
The CAL 31 is a popular sailing boat that was designed by Bill Lapworth and built by Jensen Marine. It was first introduced in 1979 and production continued until 1985. The CAL 31 is known for its excellent sailing performance, comfortable interior, and solid construction.

Here are some key features and specifications of the CAL 31:

1. Design: The CAL 31 features a traditional masthead sloop rig with a fin keel and a spade rudder. It has a moderate displacement hull with a balanced combination of speed and stability.

2. Dimensions: The boat has an overall length of 31 feet (9.45 meters), a beam of 10 feet (3.05 meters), and a draft of 5.5 feet (1.68 meters). It has a displacement of around 9,000 pounds (4,082 kilograms).

3. Sailing Performance: The CAL 31 is known for its excellent sailing characteristics. It has a good balance between speed and maneuverability, making it suitable for both cruising and racing. The boat is responsive to the helm and performs well in various wind conditions.

4. Interior: The interior of the CAL 31 is designed to provide comfort and functionality. It typically features a spacious main salon with a dining area, a well-equipped galley, a navigation station, a head (bathroom), and a V-berth cabin in the bow. Some models may also have an aft cabin.

5. Construction: The CAL 31 is built with a solid fiberglass hull and a balsa-cored deck, which provides strength and insulation. The boat is known for its sturdy construction and durability.

6. Accommodation: The CAL 31 can comfortably accommodate a small crew or a couple for extended cruising. It has ample storage space for provisions and personal belongings.

7. Availability: While the CAL 31 is no longer in production, used models can still be found on the market. They are often sought after by sailors looking for a well-built, reliable, and affordable cruising or racing boat.

Overall, the CAL 31 is a versatile and well-regarded sailing boat that offers a combination of performance, comfort, and durability. It is suitable for both experienced sailors and those looking to venture into sailing for the first time.

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