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Standard features
31 Cal 1983
New Interior Cushions, New Canvas, Roller Furling, Stern Rail Seats, Bimini, Cockpit Grill, 63 Headroom Main Salon, Large Private Head with Vanity and Shower w/Pressure Water, Inboard Diesel and Wheel Steering
An Incredible Buy on a Cal 31
ACCOMMODATIONS:
Headroom 63 New Interior Cushions Forward Cabin w/66 x 66 V Berth, Storage Space Beneath Berth, Bi Fold Door Hinged to Close Off Forward Cabin From Head and Main Salon, Large Hanging Locker Across From Head and Headroom of 6 Main Salon w/Port and Starboard Settees w/Padded Seat Backs, Port Settee Seat Back Removes and Mounts Next to Settee To Form Large Double Berth, Teak Framed Alcove and Lockers Above Each Settee and Teak Overhead Grab Rails Bi Fold, Bulkhead Mounted Dinette Table Folds Up To Cover Storage Rack on Main Bulkhead Teak Companionway Grab Rails Cabin Lights Head Compartment to Port, Vanity w/Stainless Steel Sink, Pressure Water, Hand-Held Shower and Teak Framed Storage Locker Under, Cabin Light Over Vanity and Storage Cabinet Over Vanity w/Mirrored Sliding Doors, 110 Volt AC Outlet, Teak Bi Fold Door for Privacy
GALLEY:
U-Shaped Galley Located Aft of Settees 2 Burner Stove w/Oven Dry Storage Bin W/Cover Storage Locker Outboard to Port w/Hinged Doors and Shelf Over Locker Deep Stainless Steel Double Sink w/Pressure Water 8 Cubic Foot Icebox to Starboard w/Double Insulated Lid Large Counter Over Icebox Also Serves as a Chart Table 3 Drawers and Trash Bin in Galley Food Locker w/Bottom Hinged Lid Cabin Lights and 110 V AC Outlet
HULL/DECK/RIGGING/SAILS:
Roller Furling Internal Lead Ballast Stainless Steel Stem Fitting w/Anchor Roller and Tack Pin Double Lifelines w/Gates SS Stern Pulpit w/Fold Down Swim Ladder Molded Fiberglass Toe Rails Stainless Steel Double Bow Pulpit and Stern Pulpit w/Transom Gate Aluminum Mast 24 x 24 Hatch on Foredeck 20 x 20 Hatch on Main Cabin 2 Fixed Ports To Provide Extra Light in Cabin 4 Opening Ports For Light and Ventilation 2 Bow and 2 Stern Mooring Cleats 2 Large, Lockable Cockpit Seat Hatches Open to Storage Lockers Single Spreader, Double Lower Sidestays, Split Backstay, Masthead Sloop Rig Pedestal Wheel Steering w/28 Wheel, Engine Controls, Brake and Guard on Pedestal Stern Rail Seats
ELECTRICAL/MECHANICAL:
Master Electric Control Panel 12Volt System w/Battery Selector, Disconnect Switch, Master Circuit Breaker and Branch Line Circuit Breakers, Shore Power and Cord Manual Bilge Pump Navigation Lights and Interior Lights w/110 V AC Outlets Universal Diesel M-18
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: 4.25’/1.3m.
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