⛵ Sailboat
Login Register

ROCK 20

Masthead Sloop • Fin with rudder on skeg • Built 1968–1975

Dimensions

LOA
23.52 ft
LWL
19.52 ft
Beam
7.38 ft
Max Draft
3.94 ft
Displacement
3,858 lbs
Ballast
1,323 lbs

Performance Ratios

Capsize Ratio ⓘ
1.88 (offshore safe)
SA/D Ratio ⓘ
14.1
D/L Ratio ⓘ
232
Ballast Ratio ⓘ
34.3%

Sail Plan

Sail Area
217 sq ft
I
25.6 ft
J
9.02 ft
P
23.23 ft
E
8.73 ft

Construction

Hull Type
Fin with rudder on skeg
Rig Type
Masthead Sloop
Hull Material
FG
Ballast Type
Iron

Production

First Built
1968
Last Built
1975
Number Built
200
Notes:

Another version called the ROCK 24 is probably based on the same hull but with a different sail plan.

Designer

Builder