Review of Countess 33

Basic specs.

sail specifications
The Countess 33 is a motorsailer designed by the British maritime architect Ian L. Anderson.

Here we would have liked to show you nice photos of the Countess 33.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a Countess 33 or similar boat for sale

The boat is equipped with 8 berths.


The Countess 33 is equipped with a long keel. A long 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 1.59 - 1.69 meter (5.22 - 5.52 ft) dependent on the load. See immersion rate below.


Countess 33 is typically equipped with an inboard engine at 34.0 hp (25 kW).

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive e.g. a sail drive.

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 Countess 33 is 1.92, 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 Countess 33 is about 239 kg/cm, alternatively 1338 lbs/inch.
Meaning: if you load 239 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1338 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 Countess 33 is 2.83.

Slim Wide 82% 0 50 100
Compared with other similar sailboats it is more spacy than 82% of all other designs. It seems that the designer has chosen a significantly more spacy 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): 13.14



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
Jib sheet 10.1 m(33.0 feet)12 mm(1/2 inch)
Genoa sheet10.1 m(33.0 feet)12 mm(1/2 inch)
Mainsheet 25.1 m(82.4 feet)12 mm(1/2 inch)
Spinnaker sheet22.1 m(72.5 feet)12 mm(1/2 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.


We are always looking for new photos. If you can contribute with photos for Countess 33 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.