I am sitting here at Arlanda airport outside of Stockholm waiting for my flight to Geneva and I just started thinking back to the first time I was on an airplane as a young kid back in 1961 or so. The plane was a Douglas DC3 operated by Scandinavian Airlines and I remember that when you boarded it, there was a steep climb up to your seat because the plane was leaning heavily. Low at the aft and really high at the nose.