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1980 Ericson Independence

Listed
Expired
$27,500 USD

Seller's Description

Cutter Rig w/Full Keel 1980 Yanmar Diesel, Roller Furling, Bimini & Dodger

& Complete List of Upgrades & Additions From 2010 to 2017

“Widely respected sturdy and capable pocket cruiser cutter rig w/heart- shaped stern, aft rake, traditional full run keel and partially skegged outboard rudder. With thru-bolted bowsprit it extends L.O.A. to 34’3”. High coamings encircle the cockpit to minimize deck wash from entering the cockpit. She was built for performance and comfort w/quality and integrity. Designed to be a performance cruiser for two people.”

Equipment: ACCOMMODATIONS:

6’2” Headroom, Teak & Holly Cabin Sole, 6 Opening Bronze Ports Owner’s Private Stateroom Forward w/Privacy Door, Full Size Double Berth, Hanging Locker, Shelf w/Fiddle Rail, Cabinets & Deck Hatch Private Head Starboard w/Door, Hot & Cold Pressure Water, Vanity, Stainless Steel Single Sink, Counter Space w/Fiddle Rail, Cabinet, Storage Shelves & Bronze Opening Port Main Salon w/Starboard Settee w/Storage Underneath, Behind & Outboard, Port Settee w/Foot Well into Hanging Locker to Convert to a Single Berth, Hanging Locker, & Navigation Station Starboard Aft U-Shaped Galley to Port w/Single Stainless Steel Sink, Abundant Storage & Counter Space, Top Loading Icebox & Large Teak Dining Table Folds Against Forward Bulkhead, Trash Bin Aft Facing Navigation Station w/Electrical Panel & Chart Storage

ADDITIONAL:

Three Bilge Pumps: Whale Gusher Manual Pump, Jabsco Diaphragm Main w/Water Witch Switch (Very Dry Bilge) & Centrifugal (Back Up) All Interior Teak w/5 Coats of Varnish White Painted Cypress Overhead w/Teak Trim Hull Awl Grip 3 Oil Lamps: Trawler, Yacht & Gimbal Danforth Overhead Compass @ Nav Station Ship’s Bell Cole Stove 2 House & 1 Starting Battery

UPGRADES:

2010 New Teak Anchor Platform & Aircraft Spruce Bow Sprit New Life Lines 2 New Harken Roller Furling Units; Cruising Jib Unit 1 & MKIV Unit 0 Viking Compass Restoration Sunbrella Covers for Wheel, Anchor Platform, Charlie Nobel, Hand Rails & Sampson Post Base Removed & Rebedded Hand Rail, Toe Rail and all Deck Hardwared 2011 Blue Sea AC/DC Digital Electrical Panel w/120 Volt, 6 Position AC & 18 Position DC Iso Temp Slim Line Water Heater Bilge Heater 2012 Total Re-Wire AC/DC Awl Galvanic Isolator Harken Carbo Lead Blocks 2014 B&G Triton Depth, Wind, Speed w/2 Instruments Frig O Boat Keel Cooled Refrigerator w/Merlin Automatic Smart Speed Control Device & guardian Temperature & Compressor Manual Speed Control Device Balmar Smart Gauge Battery Monitor Mystic Stainless Steel Boarding Ladder 2015 Hauled Out for Bottom Job Mast, Boom & Spreaders Painted w/Awl Grip Mast Re-Wired New Signal Mate LED Anchor Light, Steaming Light w/Deck Light & Spreader Lights Harken Battcar Traveler System Mainsail 2017 B & G Zeus2 Touch MFD Chart Plotter

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Specs

Designer
Bruce King
Builder
Ericson Yachts
Associations
?
# Built
70
Hull
Monohull
Keel
Long
Rudder
Transom hung
Construction
FG

Dimensions

Length Overall
31 0 / 9.5 m
Waterline Length
23 11 / 7.3 m
Beam
10 0 / 3.1 m
Draft
4 0 / 1.2 m
Displacement
11,400 lb / 5,171 kg
Ballast
4,500 lb / 2,041 kg

Rig and Sails

Type
Sloop
Reported Sail Area
457′² / 42.5 m²
Total Sail Area
458′² / 42.5 m²
Mainsail
Sail Area
210′² / 19.5 m²
P
32 6 / 9.9 m
E
12 11 / 3.9 m
Air Draft
?
Foresail
Sail Area
248′² / 23 m²
I
38 3 / 11.7 m
J
12 11 / 3.9 m
Forestay Length
40 5 / 12.3 m

Auxilary Power

Make
Westerbeke
Model
?
HP
20
Fuel Type
Diesel
Fuel Capacity
35 gal / 132 l
Engine Hours
?

Accomodations

Water Capacity
45 gal / 170 l
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
6.4 kn
Classic: 6.55 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

6.41 knots
Classic formula: 6.55 knots
Sail Area/Displacement
14.4
<16: under powered

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.
14.44
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
39.5
<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

39.47
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
372.0
>350: ultraheavy

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
371.98
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
29.6
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
29.56
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
1.9
<2.0: better suited for ocean passages

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
1.85
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Originally called ERICSON 31C.
Also known as the CAPE BAY 31.
The photo shows the cutter version with bowsprit.

This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.

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