The Cutlass 27 Sailboat
The Cutlass 27 - an aft-cockpit, long-keeled sloop - was designed by Eric White & Alan Hill and built in the UK by Marine Construction Ltd.
The windvane self-steering gear on the stern of this Cutlass 27, and the modified main hatch tells us that this skipper is planning for a long offshore passage.
Published Specification for the Cutlass 27
Underwater Configuration: Long keel
Hull Material: GRP (fibreglass)
Length Overall: 27' 0" / 8.23m
Waterline Length: 20' 0" / 6.10m
Beam: 7' 8" / 2.34m
Draft: 4' 6" / 1.37m
Rig Type: Masthead sloop
Displacement: 6,496lb / 2,947kg
Designer: Eric White & Alan Hill
Builder: Marine Construction (UK)
Year First Built: 1967
Number Built: 170
Published Design Ratios for the Cutlass 27
1. Sail Area/Displacement Ratio: 13.4
- 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: 50
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 363
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 30.1
- 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: 1.7
- Under 2.0 (the lower the better): Better suited for ocean passages
- Over 2.0: Less suited for ocean passages
read more about these all-revealing numbers...
Summary Analysis of Published Design Ratios for the Cutlass 27
1. A Sail Area/Displacement Ratio of just 13.4 suggests that she'll need a stiff breeze to get her going. In any other conditions, unless you've got plenty of time on your hands, motor-sailing will be the way to go
2. A Ballast/Displacement Ratio of 50 means that she'll stand up well to her canvas in a blow, enabling her to power through the waves.
3. A Displacement/Length Ratio of 363, tells us she's firmly in the ultraheavy displacement category. Load her up as much as you like and her performance will be hardly affected, not that it was ever startling. Few if any sailboats are built to this displacement category these days - but they remain popular with some of the most diehard traditional old salts.
4. Ted Brewer's Comfort Ratio of 30.1 suggests that crew comfort in a seaway is similar to what you would associate with the motion of a moderate offshore cruising boat - most seasoned sailors can handle that.
5. Her Capsize Screening Formula of 1.7 tells us that she would be a better choice of sailboat for ocean passage-making than one with a CS rating of more than 2.0.
Sailboats designed by Alan Hill include:
- Biscay 36
- Claymore 30
- Coaster 33
- Cutlass 27
- Duellist 32
- Marcon Striker 22
- Moody Cavalier 36
- Moody Halberdier 36
- Passagemaker 33
- Sabre 27
- Tomahawk 25
- Trident 24
- Vivacity 21
- Vivacity 24
Sailboats designed by Eric White include:
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