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Review of Columbia 8.7


Basic specs.

sail specifications
The Columbia 8.7 is a sailboat. The Columbia 8.7 is built by the American yard Columbia Sailing Yachts.

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Hull

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.


Keel

The Columbia 8.7 has been built with different keel alternatives.

Unknown keel type

The boat can enter even shallow marinas as the draft is just about 1.43 - 1.53 meter (4.69 - 4.99 ft) dependent on the load.

Full keel

The Columbia 8.7 is built with a long keel. A full keel provide a better directional stability than a similar boat with a fin keel; on the other hand, better directional stability means also that the boat is more difficult to handle in a harbour with less space.

The boat can enter even shallow marinas as the draft is just about 1.42 - 1.52 meter (4.66 - 4.96 ft) dependent on the load.


Engine

Columbia 8.7 may be equipped with an inboard Universal Atomic 4 gasoline engine at 30 hp (22 kW). Calculated max speed is about 6.7 knots


Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 6.4 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.


Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Columbia 8.7 is 307 which categorizes this boat among 'medium weight cruisers'.

Heavy Light 27% 0 50 100
27% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.


SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Columbia 8.7 with ISO 8666 reference sail is 16.0, with a 135% genua the SA/D is 19.1.

Low High 50% 0 50 100
The SA/D ratio indicates that it is faster than 50% of all similar sailboat designs in light wind.


Maintenance

Rig

Dimensions of sail.

mainsail specifications headsail specifications

Are your sails worn out? You might find your next sail here: Sails for Sale



If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.



Guiding dimensions of running rig
UsageLengthDiameter
Mainsail halyard 25.9 m(85.1 feet)8 mm(5/16 inch)
Jib/genoa halyard25.9 m(85.1 feet)8 mm(5/16 inch)
Spinnaker halyard25.9 m(85.1 feet)8 mm(5/16 inch)
Jib sheet 8.8 m(29.0 feet)10 mm(3/8 inch)
Genoa sheet8.8 m(29.0 feet)10 mm(3/8 inch)
Mainsheet 22.1 m(72.5 feet)10 mm(3/8 inch)
Spinnaker sheet19.4 m(63.8 feet)10 mm(3/8 inch)
Cunningham3.5 m(11.5 feet)8 mm(5/16 inch)
Kickingstrap7.0 m(23.0 feet)8 mm(5/16 inch)
Clew-outhaul7.0 m(23.0 feet)8 mm(5/16 inch)

Boat owner's ideas

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.



Finally

We are always looking for new photos. If you can contribute with photos for Columbia 8.7 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.



References