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1986 ERICSON 381 SAILBOAT Life happens and I need to sell my 1986 Ericson 381 sailboat. I purchased this boat to refit, upgrade, and make it into a well-equipped Westcoast sailer, but as stated, life happens.
It is a Bruce King designed racer/cruiser with a theoretical PHRF of 100, a Comfort Ratio of 25, has a typical layout for the Ericson 381, and is a Masthead Sloop with a performance fin keel and a spade rudder. The cockpit facilitates easy handling while under way and comfortably accommodating its crew. BASIC SPECIFICATIONS: LOA 37.6 Beam 12 Draft 6.5 Displacement 14,500 lbs Ballast 6,300 lbs Fuel Capacity: 56 gls Water Capacity: 85 gls Waste Capacity 21 gls
Equipment: The boat comes equipped with a Main Sail mounted on a Flying Dutchman system and a head sail (130% Genoa) mounted on a Harken furling system. It features a full dodger and new (2022) Bimini cockpit cover, making the area comfortable come rain or shine. The deck is in a fair to good condition with all fittings and equipment fully operational. There is a folding swim ladder attached to the stern.
The interior cabinetry, woodwork, cabin sole are in good condition overall, except there is a bit of wood degradation in a few spots along the floorboards next to the head. All interior cushions are new (2021). Some of the cushions have some minor stains that will clean off easily. Whereas the boat does not have a cook top/oven, it does have the attachments for such and is equipped with LPG tank, lines, and connectors. There is also a 110V microwave oven. It also has a JABSCO pump-style head and holding tank (20 gallons). The pump was recently replaced, and the macerator pump was rebuilt in 2021. The boat has pressurized water as well as foot pumps, and the hot water heater runs both electrically and by the engine heat exchanger.
The boat is equipped with a 4 cylinder 45 HP Perkins 4.107M Diesel engine in excellent working order. Engine hours are unknown, but this engine has little to no blow-by indicating sound piston ring and valve condition. It starts right up even after sitting dormant for several months. The alternator was rebuilt in 2021, and a new starter motor was installed in 2024.
The boat is equipped with a fully functional CPT Autopilot system. Wiring continuity interrupted during (2022) rudder repair and needs to be reconnected. During haul-out for rudder repair (2022) bottom was inspected (no blisters) and was repainted. Bottom is cleaned and inspected monthly, and all zincs are replaced as required. Keel bolts were retorqued (2021) and no hull/keel separation was observed during (2022) haul-out.
The following equipment was either replaced or refurbished: Signet Marine SL254 Wind Point and Speed display (new 2021) Signet Marine SL267A Knotlog (refurbished 2023) Signet Marine SL172 Depth Sounder (new 2023). New through hull sensor to be installed at next haul-out. S-L Seawolf 520 Windlass overhauled (2022) AC/DC engine instrument panel (new 2022) 3-ea 12 Volt batteries replaced in 2021 with new battery wiring everywhere Electrical main panels replaced and a significant amount of new wiring
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)
Updated version of ERICSON 38 (1980).
Shallow draft: 4.92’/1.50m
Thanks to Christian Williams for providing corrections and layout plan.
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