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Review of Offshore 44


Basic specs.

sail specifications
The Offshore 44 is a large motorsailer designed by the American maritime architect John Gale Alden.

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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.


Interior

The boat is equipped with 6 berths, a galley and toilet facility.


Rig

The Offshore 44 is equipped with a ketch rig. A ketch rig is generally considered easier to handle, because the sails are smaller, and because it can sail on most points to the wind with one sail completely taken down for repair or while reefing. The sail configuration of a ketch allows for better comfort and stability when sailing downwind or on a broad reach.


Keel

Full keel

The Offshore 44 is equipped 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 most marinas as the draft is just about 1.69 - 1.79 meter (5.54 - 5.84 ft) dependent on the load. See immersion rate below.


Engine

The Offshore 44 has been equipped with different engine alternatives.

Alternative 1:

Offshore 44 may be equipped with an inboard Perkins 4.236 diesel engine

Alternative 2:

The boat may be equipped with an inboard Perkins diesel engine at 115 hp (85 kW).


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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Offshore 44 is 1.56, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Offshore 44 is about 328 kg/cm, alternatively 1841 lbs/inch.
Meaning: if you load 328 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1841 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 Offshore 44 is 3.60.

Wide Slim 79% 0 50 100
Compared with other similar sailboats it is slimmer than 79% of all other designs. It seems that the designer has chosen a significantly more speedy hull design.


SA/D (Sail Area Displacement ratio)

SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 13.47


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 13.3 m(43.6 feet)16 mm(5/8 inch)
Genoa sheet13.3 m(43.6 feet)16 mm(5/8 inch)
Mainsheet 33.2 m(109.1 feet)16 mm(5/8 inch)
Spinnaker sheet29.3 m(96.0 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.

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Finally

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



References