Review of Rasmus 35
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 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 3 cabins, 6 berths, a galley and 240.0 liter fresh water capacity.
The Rasmus 35 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.
Full keel
The Rasmus 35 is equipped with a long keel. A full 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 iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated.
The boat can enter even shallow marinas as the draft is just about 1.30 - 1.40 meter (4.27 - 4.57 ft) dependent on the load. See immersion rate below.
The Rasmus 35 has been equipped with different engine alternatives.
Alternative 1:
Rasmus 35 may be equipped with an inboard Yanmar diesel engine
Alternative 2:
The boat may be equipped with an inboard Volvo Penta MD21A diesel engine at 75 hp (55 kW). Calculated max speed is about 9.5 knots
The fuel tank has a capacity of 240.0 liters (63 US gallons, 52 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 Rasmus 35 is 1.71, indicating that this boat could - if evaluated by this formula alone - 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 Rasmus 35 is about 171 kg/cm, alternatively 961 lbs/inch.
Meaning: if you load 171 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 961 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 Rasmus 35 is 30.8.
What is L/B (Length Beam Ratio)?
The l/b ratio for Rasmus 35 is 3.44.
The ballast ratio for Rasmus 35 is 43%.
What is Displacement Length Ratio?
The DL-ratio for Rasmus 35 is 272 which categorizes this boat among 'light crusers & offshore racers'.
What is SA/D (Sail Area Displacement ratio)?
The SA/D for Rasmus 35 with ISO 8666 reference sail is 13.5, with a 135% genua the SA/D is 15.8.
Don't panic! It is expected that motor sailers has a low SA/D value as this is the natural consequence of the design combining sailing and motor boat characteristics.
What is Relative Speed Performance?
The Relative Speed Performance for Rasmus 35 is 1
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 27m2 (290 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.
Dimensions of sail for masthead 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.
| Usage | Length | Diameter | ||
| Mainsail halyard | 26.8 m | (87.9 feet) | 10 mm | (3/8 inch) |
| Jib/genoa halyard | 26.8 m | (87.9 feet) | 10 mm | (3/8 inch) |
| Spinnaker halyard | 26.8 m | (87.9 feet) | 10 mm | (3/8 inch) |
| Jib sheet | 10.5 m | (34.4 feet) | 12 mm | (1/2 inch) |
| Genoa sheet | 10.5 m | (34.4 feet) | 12 mm | (1/2 inch) |
| Mainsheet | 26.2 m | (86.1 feet) | 12 mm | (1/2 inch) |
| Spinnaker sheet | 23.1 m | (75.8 feet) | 12 mm | (1/2 inch) |
| Cunningham | 4.2 m | (13.8 feet) | 10 mm | (3/8 inch) |
| Kickingstrap | 8.4 m | (27.6 feet) | 10 mm | (3/8 inch) |
| Clew-outhaul | 8.4 m | (27.6 feet) | 10 mm | (3/8 inch) |
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