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1998 Hunter 310 - Air Conditioning - Very Nice The goal of the 310 was maximum livability with good short-handed performance. This 31-foot cruiser provides surprising room and private accommodations for her size. The circular cockpit with a molded table/steering pedestal works well creating space, affording security, and promoting comfort. The 310 is maneuverable, reversing course in twice her length or less. She is relatively close-winded, making good way to weather in flat water and light air. A Great Boat for the Lake or Coastal Cruising Basic Boat Info Boat Name: Indy J Make: Hunter Model: 310 Year: 1998 Condition: Used Category: Sail Builder: Hunter Marine Designer: Hunter Design Team Construction: Fiberglass Boat Hull ID: HUN31166D797 Has Hull ID: Yes Keel Type: Winged Keel Dimensions Length: 31 ft Length Overall: 30’10 ft Waterline Length: 28 ft Beam: 10’10 ft Max Draft: 4 ft Cabins Count: 2 Engines / Speed Engines: 1 Make: Yanmar Model: 18 Fuel: Diesel Engine Power: 18hp Type: Inboard Engine Location: Center Drive Type: Direct Year: 1998 Tanks Fuel Tanks: 1 Fuel Tank Capacity: 25 gal Water Tanks: 1 Water Tank Capacity: 20 gal Other Heads Count: 1 Drive Type: Direct Boat Class: Cruisers
Equipment: Accommodations Slightly offset double V berth forward with hanging locker to port Opposing settees in main salon with dining table on a pedestal Head to port of companionway Private double berth and hanging locker in aft cabin Galley is to starboard of companionway with double burner stove, microwave, sink and ice box with refrigeration Air Conditioning/Heat Flat screen TV with DVD player Deck, Sails & Rigging Good size rounded cockpit with steering pedestal and fold down table Walk through transom with swim platform Metal arch with traveler Bimini B&R Rig Roller Furling Genoa Hinged door on companionway Electronics 12v system for cabin and navigation lights/instruments Shore Power with Cord and outlets in cabin Air Conditioning/Heat TV with DVD player
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.
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
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.
SA/D = SA ÷ (D ÷ 64)2/3
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.
Ballast / Displacement * 100
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.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
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.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
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.
CSV = Beam ÷ ³√(D / 64)
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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