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Review of Johnstone 44


Basic specs.

sail specifications
The Johnstone 44 is a large sailboat designed by the maritime architect Rodney Johnstone.

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Keel

Unknown keel type

The boat can only enter major marinas as the draft is about 2.48 - 2.58 meter (8.14 - 8.44 ft) dependent on the load. See immersion rate below.


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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Johnstone 44 is about 381 kg/cm, alternatively 2133 lbs/inch.
Meaning: if you load 381 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2133 lbs cargo on the boat it will sink 1 inch.


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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Johnstone 44 is 3.29.

Slim Wide 62% 0 50 100
Compared with other similar sailboats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.


Maintenance

Rig

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
Jib sheet 13.7 m(44.8 feet)16 mm(5/8 inch)
Genoa sheet 13.7 m(44.8 feet)16 mm(5/8 inch)
Mainsheet 34.2 m(112.1 feet)16 mm(5/8 inch)
Spinnaker sheet30.1 m(98.7 feet)16 mm(5/8 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 Johnstone 44 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