To All: I get it !!!. Air draft is knowing the size of your vessel ( breath, depth and height w/w/o mast). Surely, if you do know these dimensions, you are in big trouble and perhaps should not be in the water . VBG Leonard Stern, INDIFFERENCE

> To All: > I get it !!!. Lol. We’re trying to fit under the French canal bridges, so “air draft” (or height) is key. We are currently about 200mm too much, even taking into account the difference between fresh and salt water! Nothing that 2-3 tonnes of water won’t fix... Rob