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Review of Viksund 770


Viksund 770
Viksund 770 anno 1983.

Basic specs.

sail specifications
The Viksund 770 is a small motorboat designed by the Norwegian maritime architect E. Viksund in the early eighties. The Viksund 770 is built by the Norwegian yard Viksund Båt A/S.

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Hull

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.


Interior
Interior
Interior of Viksund 770 anno 1983.

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 4 berths, a galley, 120.0 liter fresh water capacity and toilet facility.

Front cabin
Front cabin of Viksund 770 anno 1983.
Bathroom
Bathroom of Viksund 770 anno 1983.

Cockpit
Cockpit
Cockpit of Viksund 770 anno 1983.
Keel

Unknown keel type

The boat can enter even shallow marinas as the draft is just about 0.75 - 0.85 meter (2.46 - 2.76 ft) dependent on the load. See immersion rate below.


Engine

Viksund 770 may be equipped with an inboard Yanmar diesel engine at 33 hp (24 kW). Max speed is 10.0 knots.

The fuel tank, which is made of aluminium, has a capacity of 150.0 liters (39 US gallons, 32 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Viksund 770 is about 123 kg/cm, alternatively 693 lbs/inch.
Meaning: if you load 123 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 693 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 Viksund 770 is 2.84.

Wide Slim 54% 0 50 100
Compared with other similar motor boats it is slimmer than 54% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.


Curiosities

Powerboat?

In Denmark, you are required to have achieved a 'powerboat driving license' in order to sail a powerboat.
In this context a boat is considered a powerboat if:

Equation for Danish definition of a powerboat
Danish definition of a powerboat
According to this definition this boat is not categorized as a Powerboat.
Though, if you install a motor of 55 kW (74 hp), then the boat will become a powerboat, and you will need a Danish 'powerboat driving license'


Maintenance

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 Viksund 770 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