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Seller's Description

This 31’ Camper and Nicholson is hull number 6. Has undergone extensive rebuilds and upgrades to her hull, diesel engine, electrical systems, standing rigging, and running rigging making her a one-of-a-kind dependable world class cruiser.

From 2014 to 2018 she underwent a complete overhaul that included but is not limited to a rebuild of the Yanmar 2QM20, all new running rigging, complete rewiring, osmosis blister removal, outfitted with an overbuilt aluminum stern arch, interior and exterior lighting upgrades, and teak and mahogany interior upgrades.

In 2016, under consultation of one of the last surviving Camper and Nicholson architects of the 31, the standing rigging was changed from the original through deck backing-plate mounted shrouds to exterior chainplates. Whereupon the hull was reinforced at the new chainplate mounting locations and the deck to hull joint was reworked from stem to stern and a reinforced integral toe rail was worked into the joint design.

This vessel has been outfitted for single-handing with all roller furler sails and includes a Cape Horn Wind Vane.

As of the creation of this listing, upgrades and work on the vessel is on-going and the listing, photos, and price will be updated to reflect this.

Equipment: -Yanmar 2QM20(2015 rebuild) -BlueSea Systems distribution panel model 8408 AC Main 6 Positions/DC Main 18 Positions(2016) -Xantrex LinkPro battery monitor(2016) -2 Trojan T-105 6-volt batteries house bank(2017) -New Force 10 Stainless Steel 2-Burner Gimbal Galley Range (2022) -6 winches including 2 Lewmar self-tailing winches -Strong aluminum stern arch(2016) -300 watts solar power(2016) -Fresh and saltwater Whale Galley Gusher foot pump operated taps in SS galley sink(2016) -M1 Mantus anchor 45lbs(2019) -CQR anchor 45lbs -Fortress anchor -Lavac manual head with spares and rebuild kits -Rule-Mate 1100 automatic bilge pump(2022) -Rule 3700 bilge pump(2022) -Henderson MKV manual bilge pump

Spares and extras: -Extra chain and 120’ rode setup for emergency anchor deploy -Extra 3-strand rode -Brand new 300’ spool of 5/16” Samson braided nylon extra running rigging -Many spare parts for Yanmar engine -Wind scoop hatch ventilation -Seaway triple block 3/8” w/ twist shackle -Harken 8mm ratcheting single block -Snatch blocks of various sizes -2x 1/2” stanchion mount blocks -2x 1/2” Tuphblox double blocks -2x RWO triple blocks -1/2” ZSpars single block -3/8” RWO single block -4x SS pad-eyes w/rings -2x SS Ronstan pad-eyes -2x 1/2” bronze pad-eyes -2x heavy duty 3/8” SS pad-eyes -2 bronze pelican clips 5” -Bronze swivel carabiner clip -1/2” galvanized anchor swivel -3x galvanized 3/8” anchor shackles -2x galvanized 3/8” anchor swivels -2x galvanized 5/16” anchor shackels -Davis Secure chafe guards -Assorted wooden bungs -Westmarine SS rigging kit -2x heavy duty lewmar T-track Jib Lead Car -Spare Sta-lok fittings for shrouds -Various extra deck cleats -12mm Lewmar double line clutch -Spare wildcat for windlass -Rechargeable airhorn -Spare lavac pump w/ 2x rebuild kits -Whale Gusher bilge pump w/ rebuild kit -Whale floor button style foot pump -Extra seals for Gebo portlights -Extra seals for hatchs -Rule 800 emergency/utility bilge pump with extension leads

Many more parts and equipment are aboard and will be listed soon.

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Specs

Designer
Raymond Wall
Builder
Camper & Nicholson
Associations
Nicholson 31 Association Forum
Nicholson 31 Association
# Built
119
Hull
Monohull
Keel
Long
Rudder
Transom hung
Construction
FG

Dimensions

Length Overall
30 6 / 9.3 m
Waterline Length
24 2 / 7.4 m
Beam
10 2 / 3.1 m
Draft
4 11 / 1.5 m
Displacement
13,010 lb / 5,899 kg
Ballast
4,800 lb / 2,177 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
484′² / 45 m²
Total Sail Area
484′² / 44.9 m²
Mainsail
Sail Area
237′² / 22 m²
P
34 10 / 10.6 m
E
13 6 / 4.1 m
Air Draft
?
Foresail
Sail Area
247′² / 22.9 m²
I
39 2 / 12 m
J
12 7 / 3.8 m
Forestay Length
41 2 / 12.6 m

Auxilary Power

Make
Yanmar
Model
YS12G
HP
12
Fuel Type
Diesel
Fuel Capacity
21 gal / 79 l
Engine Hours
?

Accomodations

Water Capacity
93 gal / 352 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
6.3 kn
Classic: 6.59 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

6.25 knots
Classic formula: 6.59 knots
Sail Area/Displacement
14.0
<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.
14.01
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
36.9
<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

36.9
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
410.7
>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
410.68
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
34.7
30-40: moderate bluewater cruising 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
34.68
<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
1.7
<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
1.74
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

The NICHOLSON 31 replaced the NICHOLSON 32, and proved to be nearly as popular.
The folkboat type design appealed to serious long distance cruisers and single-handers.

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

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