Review of Albin Cumulus
Basic specs.
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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.
Rig
The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.
Keel
Keel of Albin Cumulus anno 1979. Vores Balou
The boat can enter most marinas as the draft is just about 1.58 - 1.68 meter (5.18 - 5.48 ft) dependent on the load. See immersion rate below.
Engine
The boat is typically equipped with an engine.
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.
Theoretical Maximum Hull Speed
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 6.3 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.
The theoretical maximal speed of a displacement boat of this length is 6.3 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 Albin Cumulus is about 127 kg/cm, alternatively 714 lbs/inch.
Meaning: if you load 127 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 714 lbs cargo on the boat it will sink 1 inch.
Meaning: if you load 127 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 714 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 Albin Cumulus is 3.05.
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.
The l/b ratio for Albin Cumulus is 3.05.
Over- / 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 22m2 (236 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.
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 fractional rig.
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.
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.
| Usage | Length | Diameter | ||
| Mainsail halyard | 28.1 m | (92.0 feet) | 8 mm | (5/16 inch) |
| Jib/genoa halyard | 28.1 m | (92.0 feet) | 8 mm | (5/16 inch) |
| Spinnaker halyard | 28.1 m | (92.0 feet) | 8 mm | (5/16 inch) |
| Jib sheet | 8.5 m | (28.0 feet) | 10 mm | (3/8 inch) |
| Genoa sheet | 8.5 m | (28.0 feet) | 10 mm | (3/8 inch) |
| Mainsheet | 21.3 m | (70.0 feet) | 10 mm | (3/8 inch) |
| Spinnaker sheet | 18.8 m | (61.6 feet) | 10 mm | (3/8 inch) |
| Cunningham | 3.0 m | (9.7 feet) | 8 mm | (5/16 inch) |
| Kickingstrap | 5.9 m | (19.4 feet) | 8 mm | (5/16 inch) |
| Clew-outhaul | 5.9 m | (19.4 feet) | 8 mm | (5/16 inch) |
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References