Topaz Uno Specifications

Main Specs
Length, m 3.86
Beam, m 1.45
Displacement, kg 60.00
Classification
Hull Type Dbrd. Dinghy
Hull Material TRILAM Polyethylene
Rigging and Keel
Rig Single-masted (sloop)
Manufacturer Information
Shipyard Topper International
Country UK
Designer Ian Howlett
Period of manufacturing 2011 - now
Technical Specs
LOA, m 3.86
Sail Area (S.A.), m² 7.39
Sailboat Calculations
× S.A. / Displacement Formula
SA/D = SA (ft²) ÷ [Disp (lbs) / 64]^0.666
A sail area/displacement ratio below 16 would be considered under powered; 16 to 20 would indicate reasonably good performance; above 20 suggests relatively high performance.
× Capsize Screening Formula
CSF = Beam ÷ (Disp in cubic ft)^(1/3)
Designed to determine if a boat has blue water capability. The CSF compares beam with displacement since excess beam contributes to capsize and heavy displacement reduces capsize vulnerability. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2.0 or less. The lower the better.
S.A. / Displacement 49.05ℹ️
Capsize Screening Formula 3.74ℹ️