HERRESHOFF 31

Main

Appendages
Fin w/transom hung rudder
Construction
Wood/FG
First built hull
1979
Hull type
Monohull
Last built hull
1986
Model
HERRESHOFF 31 (CAT KETCH 31)
Sailboat builder
Cat Ketch Corp.
Sailboat designer
Halsey Herreshoff

Dimensions

Ballast Type
Lead
Ballast weight
1520.0
Beam
3.15
Displacement
3429.0
Draft
1.22
Max Draft
1.22
Overall length
9.4
Waterline length
8.53

Sails

E
4.27
EY
3.51
Mainsail area
22.11
P
10.36
PY
8.84
Total area
36.51

Engine

Fuel tank capacity
68.0
Fuel type
Diesel
Make
Nanni/Yanmar

Performance

Ballast ratio
44.31
Capsize Screening Formula
2.11
Comfort Ratio
18.07
Critical hull speed
7.09
Displacement-length ratio (DLR)
154.24
Upwind sail area to displacement
16.38

Accomodation

Freshwater tank capacity
227
The Herreshoff 31, also known as the Cat Ketch 31, is a sailing boat designed by L. Francis Herreshoff, a renowned American naval architect. It is a classic design that was first introduced in the 1930s and continues to be appreciated by sailors today.

The Herreshoff 31 is a small to medium-sized boat, measuring around 31 feet in length. It features a unique cat ketch rig, which means it has two masts with a main mast located further aft than the traditional sloop rig. This rig configuration provides several advantages, including ease of handling, balance, and versatility in different wind conditions.

One of the notable characteristics of the Herreshoff 31 is its shallow draft, which allows it to navigate in shallow waters and explore areas that are inaccessible to deeper-draft boats. This makes it an excellent choice for coastal cruising and exploring coastal areas, including estuaries, bays, and rivers.

The boat's design emphasizes simplicity and ease of use. It typically has a spacious cockpit, comfortable accommodations, and a well-thought-out layout that maximizes the use of available space. The interior usually includes a small galley, a head (bathroom), and sleeping quarters for a small crew.

The Herreshoff 31 is known for its excellent sailing performance. The cat ketch rig provides a balanced sail plan, allowing for efficient upwind sailing and good maneuverability. The boat is often praised for its stability and ability to handle a wide range of wind conditions. It is also known for its ability to sail well in light winds, making it a popular choice for sailors who enjoy cruising and exploring at a leisurely pace.

Overall, the Herreshoff 31 (Cat Ketch 31) is a classic sailing boat that combines traditional design with modern features. It offers a comfortable and versatile sailing experience, making it a popular choice among sailors who appreciate the timeless elegance and performance of this design.

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