Given the remarkably calm conditions given the wind, I was able to experiment a lot with the sail. About half thru the video you'll see a fantail of water from the rear ama. I would classify that as a submersion. The boat instantly lost about 3 knots in this event. The sail lost efficiency when furled (as expected) and had poor upwind
performance with a couple of furls - so if you can sail comfortably under full sail... I experienced a phenomenon during this video, when sailing solo in a tandem, under good wind, close-hauled
, you can experience a hydro-planing sensation because most of the weight is carried by the leeward ama (the main hull has a lot of air-time above the waves). If I were to modify the TI, I'd make the aft aka's stronger than the forward akas, since they bear the weight and force
. I love the rudder system, jam-cleat it into position when there are not any hazards, uncleat if there are hazards - and kept in place by internal bungy chords so it pops up when in contact with a submerged object - absolutely a BRILLIANT idea!!!