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MOBJACK built by Mobjack Manufacturing (USA) and designed by Roger Moorman. Her first hull was built in 1956 with an overall lengh of 5.18 m or 17.00 ft long

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MOBJACK Sailboat Specifications​


Overall Length (LOA) m / ft5.18 m / 17.00 ft
Builder(s)Mobjack Manufacturing
Designer(s)Roger Moorman
CountryUnited States
Hull TypeCenterboard Dinghy
Number of Hulls Built537
First Hull Built1956
Last Hull Built2003
Rigging TypeFractional Sloop


Overall Length (LOA) 5.18 m / 17.00 ft
Waterline Length (LWL)5.11 m / 16.75 ft
Beam (width)1.98 m / 6.50 ft
Draft1.22 m / 4.00 ft
Light Displacement (MLC) 204 kg / 450 lb
Maximum Displacement204 kg / 450 lb


Capsize Screening Formula (CSF)3.40
Comfort Ratio3.41
Displacement-Length Ratio (DLR)42.75
Sail Area to Displacement49.11

Above Deck

Reported Sail Area16.72 m² / 180.00 ft²
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