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1985 Herreshoff H-31

Listed
Expired
$35,999 USD

Seller's Description

1985 Herreshoff H-31

A true classic Restored and ready to go! H-31 cat ketch. fast and easy the Herreshoff way.

Three of the greatest names in sailing came together to build this exquisite yacht. Halsey Herreshoff, Gerry Hoyt, and Evert Pearson. They originally came together working on Freedom sailboats after their successful partnership on the Freedom sailboats They decided to take it further and the H-31 was produced. Produced by the cat ketch corporation.

Herreshoff is hands down the greatest name in sailing. Three generations raced in America’s cup. America’s cup museum is connected to the Herreshoff Museum. Herreshoff Is responsible for the yacht design and hull design as a 3rd generation naval architect.

Gary Hoyt is an Olympic sailing Champion. Responsible for the unique rigging and sail Inventory. Everet Pearson of Pearson Yachts Is world-renowned for his rugged sailboat hull builds.

The boat has a draft of 4 ft so she can sail anywhere. Simplified sailing all self-tending sails.

The boat is powered by an Italian Nanni Industries 18hp engine. The fuel tank holds 18 gallons. The batteries were recently replaced and the boat has two 100w solar panels.

The cockpit is roomy with wheel steering and the cockpit table folds neatly out of the way when not in use.

Down below is an open space, it lacks a forward bulkhead between the main cabin and the forward cabin. With sleeping accommodations for four crew, there is a forward V-berth in the bow and two double bunks in the main cabin, with a removable table in-between them. The berths all have storage underneath them.

The galley has an open layout and the head is to port at the foot of the companionway stairs. The engine is accessible by two removable doors.

This unstayed rigging features a simple layout. There are no winches and they are not required. The halyards are all new. Tacking does not have to involve sail handling, as the sails are self-tending.

Two anchors included: 50’ chain on the CQR with 100’ rode, 25’ chain with 100’ rode on the Plow anchor.

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Specs

Designer
L. Francis Herreshoff
Builders
Cheoy Lee Shipyard
Gallart Shipyard (Astilleros Gallart)
Compass Yachts Ltd.
Association
NZ H28 Yacht Owners Assoc.
# Built
?
Hull
Monohull
Keel
?
Rudder
?
Construction
various

Dimensions

Length Overall
26′ 11″ / 8.2 m
Waterline Length
22′ 9″ / 7 m
Beam
8′ 0″ / 2.4 m
Draft
3′ 6″ / 1.1 m
Displacement
10,500 lb / 4,763 kg
Ballast
2,800 lb / 1,270 kg

Rig and Sails

Type
Ketch
Reported Sail Area
454′² / 42.2 m²
Total Sail Area
454′² / 42.2 m²
Mainsail
Sail Area
216′² / 20.1 m²
P
31′ 11″ / 9.8 m
E
13′ 5″ / 4.1 m
Air Draft
?
Foresail
Sail Area
238′² / 22.1 m²
I
35′ 3″ / 10.8 m
J
13′ 5″ / 4.1 m
Forestay Length
37′ 9″ / 11.5 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
6.1 kn
Classic: 6.4 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

6.14 knots
Classic formula: 6.4 knots
Sail Area/Displacement
15.2
<16: under powered

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
15.15
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
26.7
<40: less stiff, less powerful

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

26.66
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
395.4
>350: ultraheavy

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
395.42
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
42.0
40-50: heavy bluewater boat

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
41.99
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
1.5
<2.0: better suited for ocean passages

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
1.46
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Sloop or Ketch.
Some builders of this design, or it’s variants include:

Compass Yachts Ltd. (NZ) 1970-1984 FG (modified by John Lidgard)
Far East Boats Ltd.(Japan)
International Marine (Japan)
Cheoy Lee Shipyard (Hong Kong) BERMUDA 30
Walker Boat Co Ltd.(AUS)
Parkins Marine - Ft. Lauderdale, FL (USA)
Middleton Marine - La Crosse, FL (USA)
Gallart Shipyard (ESP)

This listing is presented by PopYachts.com. Visit their website for more information or to contact the seller.

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