THUNDERBIRD
Fractional Sloop • Fin w/spade rudder • Built 1958
Dimensions
- LOA
- 25.98 ft
- LWL
- 20.25 ft
- Beam
- 7.54 ft
- Max Draft
- 4.79 ft
- Displacement
- 3,650 lbs
- Ballast
- 1,530 lbs
Performance Ratios
- Capsize Ratio ⓘ
- 1.96 (offshore safe)
- SA/D Ratio ⓘ
- 20.9
- D/L Ratio ⓘ
- 196
- Ballast Ratio ⓘ
- 41.9%
Sail Plan
- Sail Area
- 309 sq ft
- I
- 26.75 ft
- J
- 8 ft
- P
- 31 ft
- E
- 13 ft
Construction
- Hull Type
- Fin w/spade rudder
- Rig Type
- Fractional Sloop
- Hull Material
- Plywood/FG
- Ballast Type
- —
Production
- First Built
- 1958
- Last Built
- —
- Number Built
- —
Notes: Some THUNDERBIRDS have been built of molded FG with aluminum spars. A "cruising deck" design was introduced. Most have been built from plans now supplied by the class association. See the class web site for details.
Designer
- Ben Seaborn (1920–1960)