Review of Tradewind 35
Basic specs.
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The hull is made of hand laid fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season.
The deck is a sandwich construction which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin. The core material in the sandwich construction is balsa.
The interior is like many other boats made of mahogany. Mahogany belongs to the hardwood species, known for being water-repellent and resistant to decay. It has an attractive wood grain and holds wood polish and varnish well.
The boat is equipped with a galley, 270.0 liter fresh water capacity and toilet facility.
The Tradewind 35 is built 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.
Full keel
The Tradewind 35 is built 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 keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
The boat can enter most marinas as the draft is just about 1.68 - 1.78 meter (5.51 - 5.81 ft) dependent on the load. See immersion rate below.
The fuel tank has a capacity of 155.0 liters (40 US gallons, 34 imperial gallons).
The Tradewind 35 has been equipped with different engine alternatives.
Alternative 1:
Tradewind 35 may be equipped with an inboard Yanmar 3GM30F diesel engine at 27 hp (20 kW). Calculated max speed is about 4.5 knots
Alternative 2:
The boat may be equipped with an inboard Nanni diesel engine at 42 hp (31 kW). Calculated max speed is about 5.6 knots
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 Tradewind 35 is 1.57, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
Tradewind 35 holds a CE certification:
The boat is by European Union certified as Class A. OCEAN:What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 6.8 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 Tradewind 35 is about 168 kg/cm, alternatively 944 lbs/inch.
Meaning: if you load 168 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 944 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 Motion Comfort Ratio (MCR)?
The Motion Comfort Ratio for Tradewind 35 is 44.9.
What is L/B (Length Beam Ratio)?
The l/b ratio for Tradewind 35 is 3.33.
The ballast ratio for Tradewind 35 is 44%.
What is Displacement Length Ratio?
The DL-ratio for Tradewind 35 is 496 which categorizes this boat among 'heavy cruisers'.
Maintenance
As balsa wood is used as sandwich core material special care must be taken in relation to work that require penetration of the sandwich construction in order to to prevent water to get in contact with the balsa wood. Otherwise the balsa wood will eventually rotten and be expensive/impossible to repair.
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 29m2 (312 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.
| Usage | Length | Diameter | ||
| Jib sheet | 10.7 m | (35.0 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.7 m | (35.0 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 26.7 m | (87.5 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.5 m | (77.0 feet) | 14 mm | (0.55 inch) |
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