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Review of Sunrise


Basic specs.

sail specifications
The Sunrise is a sailboat designed by the Swedish maritime architect Tord Arne Sundén in the mid seventies.

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Interior

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 boat is equipped with 7 berths, a galley, 120.0 liter fresh water capacity and toilet facility.


Rig

The Sunrise 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.


Engine

The boat may be equipped with an inboard Volvo Penta engine at 25 hp (18 kW).

The fuel tank has a capacity of 80.0 liters (21 US gallons, 17 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Sunrise is 2.26, indicating that this boat would not be accepted to participate in ocean races.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Sunrise is about 237 kg/cm, alternatively 1332 lbs/inch.
Meaning: if you load 237 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1332 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Sunrise is 2.83.

Slim Wide 82% 0 50 100
Compared with other similar sailboats it is more spacy than 82% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.


SA/D (Sail Area Displacement ratio)

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): 16.28


Maintenance

Rig

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.



Guiding dimensions of running rig
UsageLengthDiameter
Jib sheet 10.0 m(32.9 feet)12 mm(1/2 inch)
Genoa sheet10.0 m(32.9 feet)12 mm(1/2 inch)
Mainsheet 25.1 m(82.3 feet)12 mm(1/2 inch)
Spinnaker sheet22.1 m(72.4 feet)12 mm(1/2 inch)

Boat owner's ideas

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.



Finally

We are always looking for new photos. If you can contribute with photos for Sunrise it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.



References