Review of Tayana 65

Basic specs.

The Tayana 65 is a large sailboat designed by the Canadian maritime architect Robert B. Harris in the early nineties. The Tayana 65 is built by the Taiwanese yard Ta Yang Yacht Building Co..

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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.

Engine

The boat is typically equipped with an inboard Yanmar 16224 diesel engine at 140.0 hp (104 kW), which gives a max speed about 7.4 knots.

The fuel tank has a capacity of 1892 liters (499 US gallons, 416 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 Tayana 65 is 1.69, 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 9.7 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 Tayana 65 is about 575 kg/cm, alternatively 3221 lbs/inch.
Meaning: if you load 575 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 3221 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 Tayana 65 is 3.64.

SA/D (Sail Area Displacement ratio)

SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 17.33

Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.

Maintenance

Rig

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
Jib sheet	19.7 m	(64.7 feet)	16 mm	(5/8 inch)
Genoa sheet	19.7 m	(64.7 feet)	16 mm	(5/8 inch)
Mainsheet	49.3 m	(161.7 feet)	16 mm	(5/8 inch)
Spinnaker sheet	43.4 m	(142.3 feet)	16 mm	(5/8 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

We are always looking for new photos. If you can contribute with photos for Tayana 65 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.