Fractional Sloop
• Centerboard Dinghy
• Built 1946
Dimensions
LOA
14 ft
LWL
13.75 ft
Beam
4.38 ft
Max Draft
2.08 ft
Min Draft
0.33 ft
Displacement
220 lbs
Ballast
— lbs
Performance Ratios
Capsize Ratio ⓘ
2.90
(use caution offshore)
SA/D Ratio ⓘ
43.9
D/L Ratio ⓘ
38
Ballast Ratio ⓘ
—
Sail Plan
Sail Area
100 sq ft
Construction
Hull Type
Centerboard Dinghy
Rig Type
Fractional Sloop
Hull Material
Plywood/FG
Ballast Type
—
Production
First Built
1946
Last Built
—
Number Built
—
Notes: At one time the largest dinghy class in South Africa. Designed for home builder using plywood. Until 2006 the SPROG was the one design dinghy sailed at all South African University championships.\nThe reported SA above is based on the information in the drawing. We have also seen a reported SA of 8.3 m² / 89 sqft.