Review of Joda 7500

Joda 7500 anno 1984.

Basic specs.

The Joda 7500 is a small motorboat designed by the Norwegian maritime architect Alf Jensen in the late seventies. The Joda 7500 is built by the Norwegian yard Joda Båtbyggeri 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

The boat is equipped with one cabin, 4 berths, a galley and toilet facility.
Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.

Cockpit

Cockpit of Joda 7500 anno 1984.

Engine

Joda 7500 is typically equipped with an inboard Yanmar diesel engine at 66.0 hp (49 kW).

The transmission is a shaft drive.

The fuel tank which is made of plastic has a capacity of 140 liters (36 US gallons, 30 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 Joda 7500 is about 140 kg/cm, alternatively 787 lbs/inch.
Meaning: if you load 140 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 787 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 Joda 7500 is 2.68.

Compared with other similar motor boats it is more spacy than 82% of all other designs. It seems that the designer has chosen a significantly more spacy 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:

Danish definition of a powerboat

According to this definition this boat is not categorized as a Powerboat.
Though, if you install a motor of 59 kW (79 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 changes, 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 Joda 7500 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.