Linked from a fascinating Salon.com article about seating comfort (or lack thereof) on airplanes, I was led to a fairly interesting company called Thompson Solutions. They have a line of ergonomic airplane seating, and as I was perusing their “Cozy Suite” subsection called “High Comfort“, I came across this euphemistic gem:
The high comfort seat is particularly suitable for single aisle aircraft. A conventional seat on a Boeing 737 is 17.5″ wide; our seats are 19″. For an A320 a conventional seat is 18.5″; ours is 20″. These are valuable increases given the continued growth in average passenger size (particularly US nationals) and the remaining lifespan of the current generation of aircraft.