Small Allen Aerovane – Mast head-mounted. The Aerovane features a built-in counterweight which ensures accurate indication of apparent wind angle. The counterweight also stops the Aerovane from “flapping” side to side in strong winds, which is common amongst other styles. The Aerovane has been shaped to be large enough to read whilst remaining small enough to not create unnecessary drag.
When assembling, firmly push the Aerovane onto the rod until you hear a click. To fit on the ILCA/Laser, pull the sail up a little, slide the rod down the front of the mast, and then pull the sail back down again. As used by European champion Micky Beckett.