Review of Sunbeam S 22

Both the hull and the deck is made of hand laid fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Floor plan of Sunbeam S 22.

The boat is equipped with 2 cabins and 4 berths.

The Sunbeam S 22 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 of Sunbeam S 22.

The Sunbeam S 22 has been built with different keel alternatives.

Fin keel

The Sunbeam S 22 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 boat can enter even shallow marinas as the draft is just about 1.15 - 1.25 meter (3.77 - 4.07 ft) dependent on the load. See immersion rate below.

DaggerBoard aka Sword

The Sunbeam S 22 is equipped with a daggerboard keel. A daggerboard is a lifting keel that can be lowered and raised, allowing the boat to enter shallow waters as well.

Sunbeam S 22 can enter even shallow marinas as the draft is just about 0.55 - 0.65 meter (1.80 - 2.10 ft) dependent on the load. See immersion rate below.

What is Capsize Screening Formula (CSF)?

The capsize screening value for Sunbeam S 22 is 2.23, indicating that this boat would not be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 5.7 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.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Sunbeam S 22 is about 81 kg/cm, alternatively 455 lbs/inch.
Meaning: if you load 81 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 455 lbs cargo on the boat it will sink 1 inch.

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Sunbeam S 22 is 12.1.

What is L/B (Length Beam Ratio)?

The l/b ratio for Sunbeam S 22 is 3.09.

What is a Ballast Ratio?

The ballast ratio for Sunbeam S 22 is 40%.

What is Displacement Length Ratio?

The DL-ratio for Sunbeam S 22 is 150 which categorizes this boat among 'ultra light racers'.

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): 21.04

What is Relative Speed Performance?

The Relative Speed Performance for Sunbeam S 22 is 42

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 14m² (150 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.

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.

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.

We are always looking for new photos. If you can contribute with photos for Sunbeam S 22 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.