Review of Voyage 12.50
Basic specs.
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Both the hull and the deck is made of fibreglass. A hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The boat is equipped with 3 cabins, 7+2 berths, a galley, 450 liters (118 US gallons, 98 imperial gallons) fresh water capacity and toilet facility.
The headroom is above average
The interior is like most other boats made of teak. Teak has the advantage of being naturally very oily and therefore water-repellent, which is suitable on boats.
The Voyage 12.50 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.
Fin keel
The Voyage 12.50 is built 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 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. As the surface of a fin type keel is just a fraction of the total wet surface, the additional surface area created by the cast iron keel in comparison to a lead keel of the same weight would be negligible for cruising yachts.
The boat can enter most marinas as the draft is just about 1.65 - 1.75 meter (5.41 - 5.71 ft) dependent on the load. See immersion rate below.
The fuel tank, which is made of stainless steel, has a capacity of 190 liters (50 US gallons, 41 imperial gallons).
The Voyage 12.50 has been equipped with different engine alternatives.
Alternative 1:
Voyage 12.50 may be equipped with an inboard Volvo Penta D2 diesel engine at 75 hp (55 kW). Calculated max speed is about 8.3 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.
Alternative 2:
The boat may be equipped with an inboard Perkins Prima M50 diesel engine at 50 hp (37 kW). Max speed is 7.0 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 Voyage 12.50 is 1.96, 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 7.7 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 Voyage 12.50 is about 275 kg/cm, alternatively 1543 lbs/inch.
Meaning: if you load 275 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1543 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 Voyage 12.50 is 25.0 - 27.6.
What is L/B (Length Beam Ratio)?
The l/b ratio for Voyage 12.50 is 2.96.
The ballast ratio for Voyage 12.50 is 41%.
What is Displacement Length Ratio?
The DL-ratio for Voyage 12.50 is 227 which categorizes this boat among 'light crusers & offshore racers'.
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): 17.31
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 43m2 (462 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 | 12.0 m | (39.3 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 12.0 m | (39.3 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 30.0 m | (98.3 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 26.4 m | (86.5 feet) | 14 mm | (0.55 inch) |
This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.
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