Rock 20 Information, Review, Specs
- Make
- Rock
- Model
- 20
- Number Built
- 200
- Production Year(s)
- 1968 - 1975
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 1323 lbs (Iron)
- Displacement
- 3858 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Engine
- Engine Make
- —
- Engine Model
- —
- Engine Type
- —
- Engine HP
- —
- Engine Count
- 1
- Drive Type
- —
- Fuel Type
- —
Hover over a measurement
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 23.23 ft
- E (Main Foot)
- 8.73 ft
- I (Foretriangle Height)
- 25.6 ft
- J (Foretriangle Base)
- 9.02 ft
- Forestay Length (est)
- 27.14 ft
- Main Sail Area
- 101.4 sqft
- Foretriangle Sail Area
- 115.46 sqft
- Total Sail Area (Reported)
- 217 sqft
- Total Sail Area (Calc)
- 216.85 sqft
Dimensions
- LOA
- 23.52 ft
- LWL
- 19.52 ft
- Beam
- 7.38 ft
- Draft
- 3.94 ft
- Max Headroom
- -
- Air Draft
- -
Calculations
- Hull Speed
- 5.92 kn
- Pounds per Inch Immersion
- 514.73