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Seller's Description

1967 Fahnrich 31 TEJA Classic cutter rigged sloop with full keel and keel hung rudder. Thick (overly thick) fiberglass hull construction. Foam core decks (no rot!). Sitka spruce spars in good condition with upgraded stainless standing rigging also in good condition. This boat is in the water on mooring in Charlotte, Vermont (mooring included for remainder of season). Boat comes with full steel cradle for winter storage. Cradle is in good condition and the legs fold down for transport if necessary. Dacron sails in good condition, including main (with two reefs), club foot self-tacking jib, and genoa. All sails always stored covered with cordura nylon sail covers. Very sturdy cruising sails. Off-white/cream sails (beautiful). New 12-gallon aluminum diesel tank. Head with holding tank. 15 gallon fresh water with foot pump sink. Wooden steering wheel maintained with Danish oil, or optional tiller steering. Wheel removes easily for extra space at anchor (or tiller steering) No weather helm, this boat handles very easily. Auto pilot under deck (needs digital compass update, but piston in full working order). With the option to fly one or both head sails and two reefing options in the main, this boat can handle a blow. With a reef or two in the main and just the self-tacking jib, this boat can 50-watt solar permanently installed with option to secure additional 50-watts on stern storage locker hatch. Each solar panel wired through its own solar charge controller to battery bank. Three deep cycle batteries. One bank of two batteries for the house bank and one (2021) isolated battery for Start/backup. Battery selector switches to link all batteries in parallel and to isolate solar. more description in equipment section

Equipment: Equipment: All halyards are to base of the mast and are simply rigged. All sheets run to cockpit and are also simple rigged. Main halyard on 4:1 block attached to traveler behind the tiller post, very easy to sheet in and out and no need for a winch. Jib sheets run over small winches on cockpit combing with traditional bottom slot winch handles (no lines wrapped on winch handles!) Interior: Just over 6-foot standing headroom in galley/chart table/companionway (or unlimited with companionway sliding hatch open), with slightly lower headroom in saloon and forward. V-birth sleeps two comfortably, main saloon benches pull together to form a large double bed. The boat comes with a traditional, front opening door. Ice box removed because it doesnt hold ice very long on multi-day cruises (just isnt insulated that well) and use a cooler in its place. DC compressor fridges are available that would fit the space nicely (rather large area for the size of the boat). Bronze port windows through-out. Hatch over V-birth. No leaks. Its an old boat and obviously has little projects to tinker with here and there, but you can start the motor with the push of a button, or pull the sails up and go. Canvas will need update but is functional. Its a classic yacht and we get compliments and turn heads everywhere we go! Minor cosmetic blemishes document its 53 years of service in fun (not a museum or sitting idle in a collectors slip). Sorry to be selling, but purchased a 39.

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Specs

Designers
?
Builders
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Associations
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# Built
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Hull
Monohull
Keel
?
Rudder
?
Construction
?

Dimensions

Length Overall
31 0 / 9.5 m
Waterline Length
?
Beam
8 11 / 2.7 m
Draft
6 0 / 1.8 m
Displacement
?
Ballast
?

Rig and Sails

Type
?
Reported Sail Area
?
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
2

Calculations

Hull Speed
?

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

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Classic formula: ?
Sail Area/Displacement
?

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.
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<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
?

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

?
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
?

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
?
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
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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
?
<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
?

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
?
<2: better suited for ocean passages
>2: better suited for coastal cruising

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