Review of Ejvind 20

Basic specs.

The Ejvind 20 is a small motorboat. The Ejvind 20 is built by the Danish yard Ejvind Henningsens bådværft.

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Hull

The hull 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

The boat is equipped with 2 berths.

Cockpit

Cockpit of Ejvind 20 anno 1967.

Engine

The Ejvind 20 has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with an inboard Yanmar 2GM diesel engine at 18 hp (13 kW).

Alternative 2:

Ejvind 20 may be equipped with an inboard Volvo Penta MD2 diesel engine at 16 hp (11 kW). Cruise speed is 5.0 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Ejvind 20 is about 93 kg/cm, alternatively 524 lbs/inch.
Meaning: if you load 93 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 524 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 Ejvind 20 is 2.89.

Compared with other similar motor boats it is slimmer than 90% of all other designs. It seems that the designer has chosen a significantly more speedy hull design. This type of design is also referred to as 'needle'.

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:

Danish definition of a powerboat

According to this definition this boat is not categorized as a Powerboat.
Though, if you install a motor of 43 kW (58 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.

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Finally

We are always looking for new photos. If you can contribute with photos for Ejvind 20 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.