Review of Navy 44

Basic specs.

The Navy 44 is a large sailboat designed by the maritime architect bureau McCurdy & Rhodes in the late eighties.

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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.

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 8.0 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Navy 44 is about 247 kg/cm, alternatively 1383 lbs/inch.
Meaning: if you load 247 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1383 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 Navy 44 is 3.97.

Compared with other similar sailboats it is slimmer than 96% of all other designs. It seems that the designer has chosen a significantly more speedy hull design. This type of design is also referred to as 'needle'.

Maintenance

Rig

Dimensions of sail.

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**
Usage	Length		Diameter
Mainsail halyard	39.9 m	(131.0 feet)	14 mm	(0.55 inch)
Jib/genoa halyard	39.9 m	(131.0 feet)	14 mm	(0.55 inch)
Spinnaker halyard	39.9 m	(131.0 feet)	14 mm	(0.55 inch)
Jib sheet	13.4 m	(44.0 feet)	16 mm	(5/8 inch)
Genoa sheet	13.4 m	(44.0 feet)	16 mm	(5/8 inch)
Mainsheet	33.5 m	(110.0 feet)	16 mm	(5/8 inch)
Spinnaker sheet	29.5 m	(96.8 feet)	16 mm	(5/8 inch)
Cunningham	4.9 m	(16.0 feet)	14 mm	(0.55 inch)
Kickingstrap	9.8 m	(32.0 feet)	14 mm	(0.55 inch)
Clew-outhaul	9.8 m	(32.0 feet)	14 mm	(0.55 inch)

Boat owner's ideas

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

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Finally

We are always looking for new photos. If you can contribute with photos for Navy 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.