Seller's Description
1984 Hunter 31 JUST LISTED! Comfortable, versatile and dependable. Sailing magazine once said this is an ‘Everyman sailboat”. She has 6’3” head room, Updated upholstery, new cockpit cushions, roller furling and Yanmar diesel engine. She has enhanced performance with her double swept-back spreaders and racy look. Her high bow and unusual high free board makes for a very dry boat. CONTACT INFORMATION Please contact Dawn giombetti at 609-971-7666 OTHER DETAILS Features Bottom professionally redone (Barrier Coat and Bottom Paint) SS Bow Pulpit SS Stern Pulpit Double Lifelines Folding Transom Ladder Anchor w/ Rode Wheel Steering Binnicle w/Compass Pedestal Guard Cockpit Cushions new Cockpit Seat Mainsail Cover Pedestal Cover Cockpit Table Port & Starb. Lazerette Storage Double Aft Lazerette Storage Double Spreaders Roller Furler 2 Self Tailing Sheet Winches 2 Deck winches 2-3gang Rope Clutches 2 Lexan Hatches Pressurized Hot and Cold Water 6 Gallon Water Heater Norcold Refrigerator AC/DC (DC not connected) Ice Box Gimbaled Alcohol 2 Burner Stove w/Oven SS Sinlk Updated upholstery and foam U-Shape Galley Double Aft Berth Enclosed Head w/Shower/Teak Grate Double V Berth Sette Battery Charger 30 Amp Power Inlet 30 Amp Power Cord Teak & Holly Sole Auto Pilot VHF Radio Raymarine ST60 Depth/Speed/Wind Garmin GPS Simrad WP30 Auto Pilot Chart Table Dual Battery Switch PYI PSS Dripless Shaft Seal Cutlass Bearing Replaced Spare Anchor and rode Inflatable Dingy brackets Bimini Cover Companionway Cover Set up for Jiffy Reefing Sails reconditioned by SailCare Stereo Microwave LED Bulbs Spare impeller and filters Tri-Matrix Ports Fixed Ports Replaced
Equipment: Yanmar Injector Pump Replaced Injectors Replaced Heat Exchanger (Fresh Water Cooled) Runs Great Engine Model 2 cyl Total Power 15hp Engine Type Inboard Drive Type Direct Drive Fuel Type Diesel Engine Make Yanmar Engine Model Diesel Engine Type Inboard Drive Type Direct Drive Fuel Type Diesel SPECIFICATIONS Dimensions Length Overall 31ft Max Draft 5.5ft Beam 11ft Tanks Fresh Water Tank 35 X () Fuel Tank 18 X ()
Specs
- Designer
- Cortland Steck
- Builder
- Hunter Marine
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 31′ 0″ / 9.5 m
- Waterline Length
- 26′ 2″ / 8 m
- Beam
- 10′ 11″ / 3.4 m
- Draft
- 4′ 11″ / 1.5 m
- Displacement
- 9,700 lb / 4,400 kg
- Ballast
- 4,000 lb / 1,814 kg
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 458′² / 42.6 m²
- Total Sail Area
- 458′² / 42.5 m²
Mainsail
- Sail Area
- 206′² / 19.1 m²
- P
- 37′ 5″ / 11.4 m
- E
- 10′ 11″ / 3.4 m
- Air Draft
- 47′ 4″ / 14.4 m
Foresail
- Sail Area
- 252′² / 23.4 m²
- I
- 41′ 11″ / 12.8 m
- J
- 12′ 0″ / 3.7 m
- Forestay Length
- 43′ 8″ / 13.3 m
Auxilary Power
- Make
- Yanmar
- Model
- ?
- HP
- 16
- Fuel Type
- Diesel
- Fuel Capacity
- 18 gal / 68 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 33 gal / 125 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
7.7 kn
Classic: 6.87 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
- Sail Area/Displacement
-
16.1
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.
- Ballast/Displacement
-
41.2
>40: stiffer, more 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
- Displacement/Length
-
239.5
200-300: moderate
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
- Comfort Ratio
-
22.2
20-30: coastal cruiser
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
- Capsize Screening
-
2.1
>2.0: better suited for coastal cruising
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
Notes
Shoal draft: 4.0’/1.22m
Disp. (Shoal draft): 9900 lbs/4494 kg
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