The Amel Santorin 46 Sailboat
Specs & Key Performance Indicators

The Amel Santorin 46, a centre-cockpit sloop, was designed by Henri Amel and built in France by Amel.

'Cham', an Amel Santorin Sloop anchored in Falmouth Harbour, Antigua.An Amel Santorin Sloop. Amel also produced a ketch version of the Santorin.

Published Specification for the Amel Santorin 46

Underwater Configuration: Fin keel & skeg-hung rudder

Hull Material: GRP (Fibreglass)

Length Overall: 45'11" (14.0m)

Waterline Length: 35'1" (10.7m)

Beam: 13'2" (4.0m)

Draft: 6'3" (1.9m)

Rig Type: Masthead sloop

Displacement: 24,251lb (11,000kg)

Designer: Henri Amel

Builder: Amel (France)

Year First Built: 1989

Year Last Built: 1997

Number Built: 150

Published Design Ratios for the Amel Santorin 46

1. Sail Area/Displacement Ratio: 17.8

  • 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: 35.5

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

3. Displacement/Length Ratio: 250

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

4. Comfort Ratio: 31.7

  • 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 Amel Santorin 46

1. A Sail Area/Displacement Ratio of 17.8 suggests that the Amel Santorin 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 35.5 would usually mean that the Amel Santorin 46 would have a tendency to heel excessively in a gust, and need to be reefed early to keep her sailing upright in a moderate breeze.

However, as she has much of her ballast concentrated in a bulb at the foot of the keel, she's likely to be considerably stiffer than her published Ballast/Displacement Ratio might suggest.

3. A Displacement/Length Ratio of 250, tells us the Amel Santorin 46 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 31.7 suggests that crew comfort of a Amel Santorin 46 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 Amel Santorin 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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