The Tayana 55 Sailboat
Specs & Key Performance Indicators

The Tayana 55, a centre-cockpit cutter, was designed by Peter Beeldsnijder and built in Taiwan by Ta Yang Yacht Building Co.

'Passat II', a Tayana 55 sailboat on a mooring ballA Tayana 55

Published Specification for the Tayana 55

Underwater Profile: Fin keel and skeg-hung rudder

Hull Material: GRP (Fibreglass)

Length Overall: 55'0" (16.8m)

Waterline Length: 45'11" (14.0m)

Beam: 16'1" (4.9m)

Draft: 6'6" (2.0m)

Rig Type: Cutter

Displacement: 48,400lb (21,954kg)

Designer: Peter Beeldsnijder

Builder: Ta Yang Yacht Building Co (Taiwan)

Year First Built: 1982

Year Last Built: 1991

Number Built: 65

Published Design Ratios for the Tayana 55

1. Sail Area/Displacement Ratio: 16.9

  • Less than 16 would be considered under-powered;
  • 16 to 20 would indicate reasonably good performance;
  • Over 20 suggests relatively high performance.

2. Ballast/Displacement Ratio: 36.4

  • Under 40: less stiff, less powerful
  • Over 40: stiffer, more powerful

3. Displacement/Length Ratio: 223

  • Under 100: Ultralight
  • 100 to 200: Light
  • 200 to 275: Moderate
  • 275 to 350: Heavy
  • Over 350: Ultraheavy

4. Comfort Ratio: 38.1

  • Under 20 indicates a lightweight racing boat
  • 20 to 30 indicates a coastal cruiser
  • 30 to 40 indicates a moderate offshore cruising boat
  • 40 to 50 indicates a heavy offshore boat
  • Over 50 indicates an extremely heavy offshore boat

5. Capsize Screening Formula: 1.8

  • Under 2.0 (the lower the better): Better suited for ocean passages
  • Over 2.0: Less suited for ocean passages

read more about these Key Performance Indicators...

Summary Analysis of the Design Ratios for the Tayana 55

1. A Sail Area/Displacement Ratio of 16.9 suggests that the Tayana 55 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.

2. A Ballast/Displacement Ratio of 36.4 means that a sailboat like the Tayana 55 (which doesn't have its ballast concentrated in a bulb at the foot of a deep keel), is likely to benefit from being reefed early to keep her sailing upright in a moderate breeze.

3. A Displacement/Length Ratio of 223, tells us the Tayana 55 is a moderate displacement cruiser, which means she'll carry all your cruising gear without it having a dramatic effect on her performance. Most of today's sailboats intended for offshore cruising fall into this displacement category.

4. Ted Brewer's Comfort Ratio of 38.1 suggests that crew comfort of a Tayana 55 in a seaway is similar to what you would associate with the motion of a moderate bluewater cruising boat - a predictable and acceptable motion for most seasoned sailors.

5. The Capsize Screening Formula (CSF) of 1.8 tells us that a Tayana 55 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0. 

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