6' 4
I'm not LaDonna's ex-beau, but I am 6'4", and I find the C-27 to be fine. I can stand under the hatch, and I have to just slightly tilt my head forward when I am on the centerline away from the hatch.The head is a little cramped, but how much time do you really want to spend in the head? In and out, if you're like me.Go get one - you'll love it!Rob