Originally Posted by
FlyngSvyr
...I am bringing a tape measure on my next flight, but I think the middle seat has more space between the arm rests than the window does.
No need for tape measure - as windows don't have armrests, I'm pretty sure your notion is true
As for a middle seat occupant, I always cede use of the shared armrest if I'm in the window or aisle seat. It's my recognition of the mental and physical stress I endure on the rare occasions I have to sit in one.