The Arrow's and Arafura cadets have pivoting centreboards, the big advantage is that its easy to pull down or up and cleat, with a bit of shockcord in the system its fool proof for breakage. The downside is the frame thats needed to handle the board, it makes it awkward to move around within 2ft of the mast. regards
Jeff Southall Current boats Nacra 5.8 1703 Animal Scanning Services Nacra 5.8 1667 Ram Raider Nacra 18 Square Arrow 1576