Fractional Sloop
• Fin w/transom hung rudder
• Built 1979–1980
Dimensions
LOA
17.5 ft
LWL
15.25 ft
Beam
6.33 ft
Max Draft
2 ft
Displacement
1,220 lbs
Ballast
450 lbs
Performance Ratios
Capsize Ratio ⓘ
2.37
(use caution offshore)
SA/D Ratio ⓘ
21.0
D/L Ratio ⓘ
154
Ballast Ratio ⓘ
36.9%
Sail Plan
Sail Area
150 sq ft
Construction
Hull Type
Fin w/transom hung rudder
Rig Type
Fractional Sloop
Hull Material
FG
Ballast Type
—
Production
First Built
1979
Last Built
1980
Number Built
—
Notes: Originally the TANGERINE 18. Relatively few built as SIGMA 18. The molds were purchased by Renkin, primarily, a builder of powerboats, where it became the RENKIN 18.