This system is used for the Cornish Shrimper.
The NS system, the variation to our small system, comprises of a drive unit, a torque tube, a number of foils, control rope, bottom toggle and a halyard turn block. It is this halyard turn block which varies from the small system. This system is designed for smaller boats as the halyard turns at the top of the foil 180 degrees and makes fast to the drive unit. This means that the jib does not need its own halyard as it is built into the system. This gear is for sail areas up to 150 sq feet and with a maximum luff of 8 metres and with a stay of 4mm, 5mm or 6mm.