Review of Seastream 43
Basic specs.
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The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The boat is equipped with 6-8 berths.
Fin keel
The Seastream 43 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 only enter major marinas as the draft is about 1.90 - 2.00 meter (6.23 - 6.53 ft) dependent on the load. See immersion rate below.
The Seastream 43 has been equipped with different engine alternatives.
Alternative 1:
Seastream 43 may be equipped with an inboard Perkins diesel engine
Alternative 2:
The boat may be equipped with an inboard diesel engine at 79 hp (58 kW).
The transmission is a shaft drive. A shaft drive will in the long run require less maintenance 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.
What is Capsize Screening Formula (CSF)?
The capsize screening value for Seastream 43 is 1.77, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Seastream 43 is about 379 kg/cm, alternatively 2122 lbs/inch.
Meaning: if you load 379 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 2122 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.
What is L/B (Length Beam Ratio)?
The l/b ratio for Seastream 43 is 3.10.
The ballast ratio for Seastream 43 is 36%.
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): 15.73
Maintenance
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 | ||
| Jib sheet | 13.2 m | (43.5 feet) | 16 mm | (5/8 inch) |
| Genoa sheet | 13.2 m | (43.5 feet) | 16 mm | (5/8 inch) |
| Mainsheet | 33.1 m | (108.7 feet) | 16 mm | (5/8 inch) |
| Spinnaker sheet | 29.2 m | (95.6 feet) | 16 mm | (5/8 inch) |
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