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1984 Columbia 8.7

Price Reduced
$14,000 USD

Seller's Description

Below deck- Cabin: Very good condition. Needs cleaning and conditioner to look like new. The headline liner is a full coverage fiberglassunit. Easy to clean and maintain. Two safety overhead teak handrails on the ceiling, Port & Starboard. Four opening portlights and one large opening hatch in Vberth. Galley:One deep sink w/ hot & cold pressurized water. Generous storage around sink/counter w/ smoked sliding doors. Large ice box.. Cushions: Original owner always kept them in onshore storage. They are original and in excellent shape. Cabin Sole: good condition Vberth: cushions in excellent shape. Has a large hatch and two opening portlights. Engine Compartment: 11 HP Diesel engine w/ unknownbut lowmileage Electrical- Alternator refurbished 2021. Deep cycle and starter batterienew in 2021 Fire extinguisher & first aid available Wet locker: room for four jackets Head: good condition. Sink w/ hot & cold water Bilges: clean & multiple accesscovers Hand operated High Volume Bilge Water pump and 12VDC bilge pump.

Externally-Deck Cockpit: Full RayMarine package including Auto-Helm, anemometerfor wind speed and direction, depth meter, water temperatureand many other features. Standard Horizon Chartplotter. Fold up Teak table along with drink holders Two speed Lewmar #40 winches for foresail lines. Old winches need to be removed and #40 winches need to be installed. #16 Barient winches on the roof deck for all lines coming to the cockpit. Two rope clutches (organizer), SS ladder on transom, SS Butane cooker on rail, safety lines replaced in 2019? Safety lines have two access gates. Traveler is locatedin front of the companionway. Emergency tiller in storage compartment. Shore power cord: 30 amp, 30’ length. Water heater located in storage compartment. 13 gal. capacity, unknown if functional. Water can be heated by engine also. Fire extinguisher located at the wheel. Furling System: Pro-Furler. whisker pole: 8’ length for sailing downwind wing on wing. Line control: Three Position c This boat is priced to sell. MAKE AN OFFER.

Equipment: Ray Marine Instruments. West Marine VHF. Standard Horizon chart plotter. 30 amp shore power, rail-mounted SS Barbeque, New Bay Sails mainsail 2022, older 120% Foresail in good condition. Nice woodwork below deck, stainless steel handrails on deck. Deck safety lines were replaced in 2019. Companionway woodwork renovated in 2022 with light colored epoxy. Plow anchor 18 lb w 6’chain & 100’ of 1/2” rode 10’ increment markers on rode. 8’ Whisker Pole. Pro Furler on fore sail. Liquor cabinet. Two Trickle chargers for Batteries 2022.New Starter and Deep Cycle Batteries in 20222. Spare life vests 4X. Small West Marine Dingy w oars and motor mount



Alan Payne
Hughes Boat Works
Columbia Yachts
# Built


Length Overall
29 0 / 8.8 m
Waterline Length
23 1 / 7.1 m
10 0 / 3.1 m
4 5 / 1.4 m
8,500 lb / 3,856 kg
3,500 lb / 1,588 kg

Rig and Sails

Reported Sail Area
416′² / 38.7 m²
Total Sail Area
416′² / 38.7 m²
Sail Area
186′² / 17.3 m²
32 3 / 9.9 m
11 6 / 3.5 m
Air Draft
Sail Area
231′² / 21.4 m²
37 6 / 11.4 m
12 3 / 3.8 m
Forestay Length
39 5 / 12 m

Auxilary Power

Atomic 4
Fuel Type
Fuel Capacity
12 gal / 45 l
Engine Hours


Water Capacity
13 gal / 49 l
Holding Tank Capacity


Hull Speed
6.7 kn
Classic: 6.45 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.


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

6.71 knots
Classic formula: 6.45 knots
Sail Area/Displacement
<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.


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.
<16: under powered
16-20: good performance
>20: high performance
>40: stiffer, more 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.


Ballast / Displacement * 100

<40: less stiff, less powerful
>40: stiffer, more powerful
275-350: heavy

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.


D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
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.


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
<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
<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.


CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
<2: better suited for ocean passages
>2: better suited for coastal cruising


In 1979 Hughes Boat Works acquired the molds and built the COLUMBIA 8.7 for a while in Ontario, Canada. When Hughes went into receivership in 1982, the molds ended up with Aura Yachts where they were sold in varying states of completion. In 1986 Hughes took the line back again until their factory was destroyed by fire.

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