Review of Endeavour 37

Basic specs.

The Endeavour 37 is a sailboat designed by the maritime architect Dennis Robbins together with Creekmore in the late seventies. Several hundred boats have been produced. The Endeavour 37 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 382.0 liter fresh water capacity.

Rig

The boat has multiple rigs.

One option is 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.

Another option is 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.

Another option is a yawl rig. A yawl 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 yawl allows for better comfort and stability when sailing downwind or on a broad reach.

Keel

Fin keel

The Endeavour 37 is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

Endeavour 37 can enter even shallow marinas as the draft is just about 1.37 - 1.47 meter (4.49 - 4.79 ft) dependent on the load. See immersion rate below.

Engine

The boat may be equipped with an inboard Perkins 4.108 diesel engine at 50 hp (37 kW). Calculated max speed is about 6.4 knots

The fuel tank has a capacity of 208.0 liters (54 US gallons, 45 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 37 is 1.71, 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 7.3 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 37 is about 216 kg/cm, alternatively 1210 lbs/inch.
Meaning: if you load 216 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1210 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 37 is 36.6.

Comparing this ratio with similar sailboats show that it is more comfortable than 88% 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 37 is 3.20.

Compared with other similar sailboats it is more spacy than 54% 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 37 is 40%.

This ballast ratio shows a righting moment that is higher than 54% of all similar sailboat designs. A righting moment (ability to resist heeling) just above average.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Endeavour 37 is 331 which categorizes this boat among 'heavy cruisers'.

18% 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 37 with ISO 8666 reference sail is 11.2, with a 135% genua the SA/D is 13.5.

The SA/D ratio indicates that it is faster than 4% of all similar sailboat designs in light wind.

Over- / underrigged

The Endeavour 37 has more rig than 34% of all similar sailboats, which indicates that the boat is slightly underrigged.

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 34m² (365 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.

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	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Jib/genoa halyard	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Spinnaker halyard	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Jib sheet	11.3 m	(37.0 feet)	14 mm	(0.55 inch)
Genoa sheet	11.3 m	(37.0 feet)	14 mm	(0.55 inch)
Mainsheet	28.2 m	(92.5 feet)	14 mm	(0.55 inch)
Spinnaker sheet	24.8 m	(81.4 feet)	14 mm	(0.55 inch)
Cunningham	3.7 m	(12.0 feet)	12 mm	(1/2 inch)
Kickingstrap	7.3 m	(24.0 feet)	12 mm	(1/2 inch)
Clew-outhaul	7.3 m	(24.0 feet)	12 mm	(1/2 inch)
Masthead rig
Usage	Length		Diameter
Mainsail halyard	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Jib/genoa halyard	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Spinnaker halyard	28.7 m	(94.2 feet)	12 mm	(1/2 inch)
Jib sheet	11.3 m	(37.0 feet)	14 mm	(0.55 inch)
Genoa sheet	11.3 m	(37.0 feet)	14 mm	(0.55 inch)
Mainsheet	28.2 m	(92.5 feet)	14 mm	(0.55 inch)
Spinnaker sheet	24.8 m	(81.4 feet)	14 mm	(0.55 inch)
Cunningham	4.3 m	(14.0 feet)	12 mm	(1/2 inch)
Kickingstrap	8.5 m	(28.0 feet)	12 mm	(1/2 inch)
Clew-outhaul	8.5 m	(28.0 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

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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

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