Fractional Sloop
• Centerboard (Trunk)
• Built 1922–1925
Dimensions
LOA
18.25 ft
LWL
15.5 ft
Beam
6.17 ft
Max Draft
3.75 ft
Min Draft
0.92 ft
Displacement
1,300 lbs
Ballast
450 lbs
Performance Ratios
Capsize Ratio ⓘ
2.26
(use caution offshore)
SA/D Ratio ⓘ
26.9
D/L Ratio ⓘ
156
Ballast Ratio ⓘ
34.6%
Sail Plan
Sail Area
200 sq ft
Construction
Hull Type
Centerboard (Trunk)
Rig Type
Fractional Sloop
Hull Material
Wood
Ballast Type
—
Production
First Built
1922
Last Built
1925
Number Built
20
Notes: Alden design #61. It is thought that no more than 20 of this first version of the O Class were built. Designed as a trainer, it proved to be too tender and skitish for the younger sailer and they had died out by 1931. A second version (see ALDEN O MK II) proved to be far more popular.