In 1990 I took this photo of David Knaggs from our Great Barrier Express (GBE-II, coremat construction - after this one, Richard Pilkington's...
My calcs show a balance point of around 53 deg. I used a rig weight of 1325 kg and a rig cog 23.7 m (wildly guessed 1/3 the 68m span) above the...