Jonmeri 40 Specifications

Main Specs
Length, m 12.1
Beam, m 3.85
Draft, m 2.1
Displacement, kg 9850
Classification
Hull Type Monohull
Type by Usage Cruiser
CE Class A - Ocean
Hull Material Fiberglass / GRP
Design Modern / Mainstream
Deck Arrangement With mediterranean cockpit
Rigging and Keel
Rig Single-masted (sloop)
Keel Fixed
Tanks Capacity
Fuel capacity, l 180
Water tank, l 260
Manufacturer Information
Shipyard Jonmeri
Country Finland
Model 40
Period of manufacturing 1981 - 2000
Sailboat Calculations
× 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.
Capsize Screening Formula 1.81ℹ️