TRIANGLE ONE-DESIGN
Fractional Sloop • Fin Keel • Built 1926–1933
Dimensions
- LOA
- 28.5 ft
- LWL
- 18.5 ft
- Beam
- 7.5 ft
- Max Draft
- 4.75 ft
- Displacement
- 5,017 lbs
- Ballast
- 2,500 lbs
Performance Ratios
- Capsize Ratio ⓘ
- 1.75 (offshore safe)
- SA/D Ratio ⓘ
- 22.2
- D/L Ratio ⓘ
- 354
- Ballast Ratio ⓘ
- 49.8%
Sail Plan
- Sail Area
- 407 sq ft
- I
- 22.8 ft
- J
- 8.25 ft
- P
- 37.5 ft
- E
- 19.2 ft
Construction
- Hull Type
- Fin Keel
- Rig Type
- Fractional Sloop
- Hull Material
- Wood
- Ballast Type
- Lead
Production
- First Built
- 1926
- Last Built
- 1933
- Number Built
- 60
Notes: Alden design #278. Originally called the MARBLEHEAD CLASS, the JAMESTOWN CLASS. \nOf 60 built, a few have been restored and are still sailing (2005).\n(According to 'John G. Alden and his yacht designs' only around 14 were built.)
Designer
- John G. Alden (1884–1962)
Builder
- Graves Yacht Yard (USA) (1898)