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Review of Endeavour 40


Basic specs.

sail specifications
The Endeavour 40 is a large sailboat designed by the maritime architect Endeavour in the early eighties. A few hundred boats have been produced. The Endeavour 40 is built by the American yard Endeavour Yacht Corporation.

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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 643.0 liter fresh water capacity.


Rig

The Endeavour 40 is equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.


Keel

Fin keel

The Endeavour 40 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The boat can enter most marinas as the draft is just about 1.52 - 1.62 meter (4.99 - 5.29 ft) dependent on the load. See immersion rate below.


Engine

Endeavour 40 may be equipped with an inboard Perkins 4.108 diesel engine at 50 hp (37 kW). Calculated max speed is about 5.9 knots

The fuel tank has a capacity of 284.0 liters (75 US gallons, 62 imperial gallons).


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 Endeavour 40 is 1.78, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.6 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 Endeavour 40 is about 258 kg/cm, alternatively 1448 lbs/inch.
Meaning: if you load 258 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1448 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Endeavour 40 is 36.6.

Low High 82% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 82% of all similar sailboat designs. This is a comfort value significantly above average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Endeavour 40 is 3.08.

Slim Wide 73% 0 50 100
Compared with other similar sailboats it is more spacy than 73% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Endeavour 40 is 36%.

Low High 31% 0 50 100
This ballast ratio shows a righting moment that is higher than 31% of all similar sailboat designs. A righting moment (ability to resist heeling) just below average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Endeavour 40 is 340 which categorizes this boat among 'heavy cruisers'.

Heavy Light 14% 0 50 100
14% 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 Endeavour 40 with ISO 8666 reference sail is 14.7, with a 135% genua the SA/D is 17.4.

Low High 21% 0 50 100
The SA/D ratio indicates that it is faster than 21% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 73% 0 50 100
The Endeavour 40 has more rig than 73% of all similar sailboats, which indicates that the boat is slightly overrigged.


Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 40m2 (430 ft2).
Based on this, your favourite maritime shop can tell you the quantity you need.

Note: If you use a paint roller you will need more paint than if you use a paintbrush.


Rig

Dimensions of sail for masthead rig.

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 38.6 m(126.8 feet)12 mm(1/2 inch)
Jib/genoa halyard38.6 m(126.8 feet)12 mm(1/2 inch)
Spinnaker halyard38.6 m(126.8 feet)12 mm(1/2 inch)
Jib sheet 12.2 m(40.0 feet)14 mm(0.55 inch)
Genoa sheet12.2 m(40.0 feet)14 mm(0.55 inch)
Mainsheet 30.5 m(100.0 feet)14 mm(0.55 inch)
Spinnaker sheet26.8 m(88.0 feet)14 mm(0.55 inch)
Cunningham4.8 m(15.7 feet)12 mm(1/2 inch)
Kickingstrap9.6 m(31.5 feet)12 mm(1/2 inch)
Clew-outhaul9.6 m(31.5 feet)12 mm(1/2 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 Endeavour 40 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