Udkik.dk

Review of X-Treme 37


Basic specs.

sail specifications
The X-Treme 37 is a sailboat designed by the maritime architect bureau Reichel/Pugh Yacht Design in the mid 2000.

Here we would have liked to show you nice photos of the X-Treme 37.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a X-Treme 37 or similar boat for sale

Keel

The boat can only enter major marinas as the draft is about 2.64 - 2.74 meter (8.66 - 8.96 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for X-Treme 37 is 2.30, indicating that this boat would not 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 7.7 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 X-Treme 37 is about 234 kg/cm, alternatively 1313 lbs/inch.
Meaning: if you load 234 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1313 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 X-Treme 37 is 13.7.

Low High 2% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 2% of all similar sailboat designs. This is a comfort value significantly below average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for X-Treme 37 is 3.25.

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


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for X-Treme 37 is 54%.

Low High 98% 0 50 100
This ballast ratio shows a righting moment that is higher than 98% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for X-Treme 37 is 97 which categorizes this boat among 'ultra light racers'.

Heavy Light 96% 0 50 100
96% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.


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 46m2 (495 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

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 11.3 m(37.1 feet)14 mm(0.55 inch)
Genoa sheet 11.3 m(37.1 feet)14 mm(0.55 inch)
Mainsheet 28.2 m(92.7 feet)14 mm(0.55 inch)
Spinnaker sheet24.9 m(81.6 feet)14 mm(0.55 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what to look for.



Finally

We are always looking for new photos. If you can contribute with photos for X-Treme 37 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