SONAR
Fractional Sloop • Fin w/spade rudder • Built 1980
Dimensions
- LOA
- 23 ft
- LWL
- 19.92 ft
- Beam
- 7.83 ft
- Max Draft
- 3.92 ft
- Displacement
- 2,100 lbs
- Ballast
- 930 lbs
Performance Ratios
- Capsize Ratio ⓘ
- 2.45 (use caution offshore)
- SA/D Ratio ⓘ
- 25.9
- D/L Ratio ⓘ
- 119
- Ballast Ratio ⓘ
- 44.3%
Sail Plan
- Sail Area
- 265 sq ft
- I
- 25 ft
- J
- 8.9 ft
- P
- 27.5 ft
- E
- 11.2 ft
Construction
- Hull Type
- Fin w/spade rudder
- Rig Type
- Fractional Sloop
- Hull Material
- FG
- Ballast Type
- Lead
Production
- First Built
- 1980
- Last Built
- —
- Number Built
- 860
Notes:
Commissioned by members of Noroton YC of Darien CT USA and first built by Seidelmann Yachts.
A few were also built by Carbon Index in the UK.
Current builder (2019) is Rondar Raceboats.
Designer
- Bruce Kirby (1929–2021)
Builders
- C. E. Ryder (1976–1990)
- DS Yachts (Schwill Yachts) (CAN) (1971–1986)
- Ontario Yachts (1961)
- Rondar Raceboats (1980)
- Seidelmann Yachts (1977–1986)
- Shumway Marine (USA)