Review of Hinrichsen 34

Hinrichsen 34 anno 1977.

Basic specs.

The Hinrichsen 34 is a sailboat designed by the maritime architect Herman Hinrichsen in the mid seventies. Only a few boats have been produced. The Hinrichsen 34 is built by the Danish yard Humlebæk Bådeværft.

Looking for a new boat? Find a Hinrichsen 34 or similar boat for sale

Hull

Both the hull and the deck is made of hand laid fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season.
Unfortunately, the hull is not a double hull which affects the indoor climate. Especially if the water is considerable colder than the cabin, then one might expect condense water in the cabin.
The deck is a double deck which improves the indoor climate.

Interior

Interior of Hinrichsen 34. Aptering i kahyt

The interior is like many other boats made of mahogany.
The boat is equipped with 7 berths, a galley and toilet facility.

Cockpit

Cockpit of Hinrichsen 34.

Rig

The boat equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.

Engine

The boat is typically equipped with an inboard Bukh diesel engine at 22.0 hp (16 kW), which gives a max speed about 5.5 knots.

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive e.g. a sail drive.

The fuel tank which is made of stainless steel has a capacity of 60 liters (15 US gallons, 13 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 Hinrichsen 34 is 1.96, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.0 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Hinrichsen 34 is about 183 kg/cm, alternatively 1027 lbs/inch.
Meaning: if you load 183 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1027 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Hinrichsen 34 is 23.8.

Comparing this ratio with similar sailboats show that it is more comfortable than 42% of all similar sailboat designs. This comfort value is just below average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Hinrichsen 34 is 3.10.

Compared with other similar sailboats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Hinrichsen 34 is 238 which categorizes this boat among 'light crusers & offshore racers'.

54% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.

SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Hinrichsen 34 with ISO 8666 reference sail is 16.9, with a 135% genua the SA/D is 20.5.

The SA/D ratio indicates that it is faster than 54% of all similar sailboat designs in light wind.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Hinrichsen 34 is 76

The relative speed performance is 76 which means that a it is faster than 76% of all similar sailboat designs.

Maintenance

Rig

Dimensions of sail for masthead rig.

Are your sails worn out? You might find your next sail here: Sails for Sale

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**
Usage	Length		Diameter
Mainsail halyard	30.6 m	(100.2 feet)	10 mm	(3/8 inch)
Jib/genoa halyard	30.6 m	(100.2 feet)	10 mm	(3/8 inch)
Spinnaker halyard	30.6 m	(100.2 feet)	10 mm	(3/8 inch)
Jib sheet	10.2 m	(33.6 feet)	12 mm	(1/2 inch)
Genoa sheet	10.2 m	(33.6 feet)	12 mm	(1/2 inch)
Mainsheet	25.6 m	(84.0 feet)	12 mm	(1/2 inch)
Spinnaker sheet	22.5 m	(73.9 feet)	12 mm	(1/2 inch)
Cunningham	3.2 m	(10.6 feet)	10 mm	(3/8 inch)
Kickingstrap	6.5 m	(21.2 feet)	10 mm	(3/8 inch)
Clew-outhaul	6.5 m	(21.2 feet)	10 mm	(3/8 inch)

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.

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Finally

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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.