Review of Sea Ray 340 Sedan Bridge

Sea Ray 340 Sedan Bridge anno 1985. Photo taken by me, Fort George, Florida 2003. This was a wonderful boat and I miss it …….

Basic specs.

The Sea Ray 340 Sedan Bridge is a motorboat designed in the late eighties. The Sea Ray 340 Sedan Bridge is built by the American yard Sea Ray.

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Hull

The hull is made of hand laid fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season.
The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.

Interior

The interior is like many other boats made of mahogany.
The boat is equipped with 2 cabins, 5-6 berths, a galley and toilet facility.

Keel

The boat can enter even shallow marinas as the draft is just about 0.85 - 0.95 meter (2.79 - 3.09 ft) dependent on the load. See immersion rate below.

Engine

Sea Ray 340 Sedan Bridge is typically equipped with dual inboard Volvo Penta engines at 400.0 hp (298 kW).

The transmission is a shaft drive.

The fuel tank which is made of stainless steel has a capacity of 900.0 liters (237 US gallons, 197 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 Sea Ray 340 Sedan Bridge is about 266 kg/cm, alternatively 1495 lbs/inch.
Meaning: if you load 266 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1495 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 Sea Ray 340 Sedan Bridge is 2.69.

Compared with other similar motor boats it is more spacy than 92% 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 categorized as a Powerboat.

Maintenance

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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

Finally

We are always looking for new photos. If you can contribute with photos for Sea Ray 340 Sedan Bridge 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.