The Oceanic 46 Sailboat
Specs & Key Performance Indicators

The Oceanic 46, an aft-cockpit cutter, was designed by Ted Brewer and built in Taiwan by the Mao Ta Shipyard.

'Dandelion', an Oceanic 46 cutterA heavy displacement Oceanic 46 cutter

Published Specification for the Oceanic 46

Underwater Configuration: Fin keel & skeg-hung rudder 

Hull Material: GRP (Fibreglass)

Length Overall: 45'9" (13.9m)

Waterline Length: 36'6" (11.1m)

Beam: 13'6" (4.1m)

Draft: 5'10" (1.8m)

Rig Type: Cutter

Displacement: 33,500lb (15,195kg)

Designer: Ted Brewer

Builder: Mao Ta Shipyard, (Taiwan)

Year First Built: 1980

Number Built: 40

Published Design Ratios for the Oceanic 46

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: 34.3

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

3. Displacement/Length Ratio: 308

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

4. Comfort Ratio: 41.2

  • 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: 1.7

  • 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 Oceanic 46

1. A Sail Area/Displacement Ratio of 16.9 suggests that the Oceanic 46 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 34.3 means that the Oceanic 46 will have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze. 

3. A Displacement/Length Ratio of 308, tells us the Oceanic 46 is clearly a heavy displacement cruising boat. You can load her down with all your cruising gear and equipment and it will hardly affect her waterline. Not an ideal choice for coastal sailing, but she'll come into her own on an offshore passage in testing conditions.

4. Ted Brewer's Comfort Ratio of 41.2 suggests that crew comfort of an Oceanic 46 in a seaway is similar to what you would associate with the motion of a heavy bluewater cruising boat. Pitching and rolling will be well damped - your cup of coffee on the salon table stands a reasonable chance of staying there in most conditions.

5. The Capsize Screening Formula (CSF) of 1.7 tells us that an Oceanic 46 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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