GRAVESEND BAY KNOCKABOUT
Gaffhead Sloop • Centerboard Dinghy • Built 1908–1918
Dimensions
- LOA
- 20.96 ft
- LWL
- 17.42 ft
- Beam
- 6 ft
- Max Draft
- 4.5 ft
- Min Draft
- 0.67 ft
- Displacement
- 1,100 lbs
- Ballast
- — lbs
Performance Ratios
- Capsize Ratio ⓘ
- 2.33 (use caution offshore)
- SA/D Ratio ⓘ
- 37.4
- D/L Ratio ⓘ
- 93
- Ballast Ratio ⓘ
- —
Sail Plan
- Sail Area
- 249 sq ft
Construction
- Hull Type
- Centerboard Dinghy
- Rig Type
- Gaffhead Sloop
- Hull Material
- Wood planked
- Ballast Type
- —
Production
- First Built
- 1908
- Last Built
- 1918
- Number Built
- —
Notes: Built for members of the New York Canoe Club and raced in New York Harbor up until the 1920's. (Specific dates are unknown). \nLocally known as CLASS X. Not strictly a one design class but boats were similar.\n(Disp. is an estimate)\nRelated article appeared in 'The Rudder', Dec. 1916.\n(Today Gravesend (Bay) is a neighborhood in the borough of Brooklyn, New York)