Furling the sail is quite simple: roll it up, ease the halyard, and stow the rolled sail in the forward hatch. Its operating range extends from 45° apparent wind angle (AWA) to 100°. In stronger winds, the Booster can even be used up to 110° without difficulty. Sailing “wing‑and‑wing” is also possible. The sail can be hoisted and doused effortlessly by rolling it on the spinnaker halyard. The radial‑cut sail, made from 0.75oz spinnaker cloth and attached to the bow fitting, provides significantly more drive in light winds than a jib or genoa.
A spinnaker pole is unnecessary, and there is no annoying flogging during hoisting or dousing. For tacking or gybing, simply roll the Booster away. A Bartels endless‑line furler is available as an optional extra.
The sail is trimmed using the spinnaker sheet. The Roll Booster is about 25% smaller than an all‑round cruising gennaker, making it an ideal sail for narrow sailing areas that require frequent course changes. Both small crews and single‑handed sailors appreciate this sail.
