Review of Helmsman 35
Basic specs.
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Both the hull and the deck 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.
The hull is a double hull 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 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 2 cabins, 7 berths, a galley, 160.0 liter fresh water capacity and toilet facility.
The Helmsman 35 is 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 gennaker or a spinnaker for optimal speed.
Fin keel
The Helmsman 35 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.
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 only enter major marinas as the draft is about 1.95 - 2.05 meter (6.40 - 6.70 ft) dependent on the load. See immersion rate below.
Helmsman 35 may be equipped with an inboard Volvo Penta MD2B diesel engine at 25 hp (18 kW). The speed is 7.5 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.
The fuel tank has a capacity of 100.0 liters (26 US gallons, 21 imperial gallons).
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 Helmsman 35 is 2.11, 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 7.0 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 Helmsman 35 is about 191 kg/cm, alternatively 1074 lbs/inch.
Meaning: if you load 191 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1074 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 Helmsman 35 is 20.4.
What is L/B (Length Beam Ratio)?
The l/b ratio for Helmsman 35 is 3.05.
The ballast ratio for Helmsman 35 is 49%.
What is Displacement Length Ratio?
The DL-ratio for Helmsman 35 is 219 which categorizes this boat among 'light crusers & offshore racers'.
What is Relative Speed Performance?
The Relative Speed Performance for Helmsman 35 is 90
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 34m2 (365 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 | 10.5 m | (34.5 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.5 m | (34.5 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 26.3 m | (86.4 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.2 m | (76.0 feet) | 14 mm | (0.55 inch) |
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