Seller's Description
Please see the list below to get a feel for how this boat has been maintained and upgraded over the years. Everything works and is ready to sail, this is a true turn-key boat that you will not have to work on it before you can use it. We have been sailing her 2,500/3,000 miles every year since 2016. Offers will be considered ***Tender is not included in the sale.
Highlighted features -14,000 BTU ac/heat -Garman GPS plotter, connected to VHF for DSC use -Tri-data raymarine, wind, depth and speed -Raymarine AP -All LED lights to save power -High gloss finished cabin sole, walls and cabinets -Many spare parts, filters,belts, hoses, pumps, LED bulbs for all fixtures -Compounded, waxed and polly sealed topsides and hull every year
Equipment: Yanmar 2gm20f Upgrade history
2015,New 3 blade prop 15/12,Added 1,500gpm and 500gpm pumps,New Jib sail,New mast top wind vane,Added radio am/fm/cd/aux 2016,New head,All lights converted to LED,Add, engine temp gauge to helm,New running rigging ALL,Added spinnaker halyard,Add steaming light and deck light,New cutlass bearing,Removed rudder, new cap, rose fittings and bearings,New macerater pump,Add Davits for tender,Refinished cabin floors and walls,Hot water heater rewired,Re-bedded all thru-hulls,Added shower box and pump,Cleaned inside of water tank, changed all hoses,Added 12v outlets (3),Pulled mast re-wired,Added red LED night lights to cabin,New faucet and shower hardware in head 2017,Engine re-build,new pistons, rings and bearings,Valve seats,High and low pressure fuel pumps,New starter,New fuel hoses from tank to engine,Added electric primer pump,Cleaned exhaust manifold,Add oil pan drain hose,Balanced prop and cut to 15/9,Added whisker pole, and Asim,New tachometer,New battery isolator switch,New propane system,tank,and hoses,New domestic water pump 2018,New dodger windows,Auto Pilot rebuild, gears,drive, belts,New valves,guides and seats,Trans cleaned & serviced,New A/C-Heat 14,000BTU with power vent,Rebuilt alternator,New mixing elbow 2019,New Yanmar motor mounts,Refinished cabin sole, Converted underwater factory exhaust to side above water, Underwater lights, Removed forward hanging locker and enlarged Vberth area with new mattress 2020,New Yanmar fresh water pump,New cutlass bearing,New Sanitation hoses,New Icom VHF
Specs
- Designer
- Hunter Design Team
- Builder
- Hunter Marine
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin + Bulb
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 30′ 10″ / 9.4 m
- Waterline Length
- 31′ 11″ / 9.8 m
- Beam
- 8′ 0″ / 2.4 m
- Draft
- 4′ 11″ / 1.5 m
- Displacement
- 8,500 lb / 3,856 kg
- Ballast
- 3,000 lb / 1,361 kg
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 464′² / 43.1 m²
- Total Sail Area
- 464′² / 43.1 m²
Mainsail
- Sail Area
- 248′² / 23 m²
- P
- 39′ 0″ / 11.9 m
- E
- 12′ 7″ / 3.9 m
- Air Draft
- 49′ 4″ / 15 m
Foresail
- Sail Area
- 216′² / 20.1 m²
- I
- 37′ 0″ / 11.3 m
- J
- 11′ 8″ / 3.6 m
- Forestay Length
- 38′ 10″ / 11.9 m
Auxilary Power
- Make
- Yanmar
- Model
- ?
- HP
- 18
- Fuel Type
- Diesel
- Fuel Capacity
- 25 gal / 95 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 20 gal / 76 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
8.8 kn
Classic: 7.09 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
-
17.8
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
-
35.3
<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
- Displacement/Length
-
173.2
100-200: light
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
-
19.0
<20: lightweight racing 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
- 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 version: 4’. As with most other later boats built by Hunter Marine, the 310 has the Bergstrom & Ridder rig with no backstay.
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