The A4 carries the midgirth up as high as possible, giving the sail the power to project to weather.  Constructed of heavier spinnaker cloth, and slightly smaller luff length the A2, the A4 is designed to sail between 115-165 degrees apparent. This sail will work best if you have a stable, powerful boat and you want to improve broad reaching to downwind capability..

115 – 170 AWA.  /  10 – 25 AWS