Originally Posted by
serfty
At 5'10" I suspect you'll be fine (I'm happy to take the bulkhead at 6'). There is no difference in the distance to bulkheads between the A/C or D/F sides.
(As a comparison, I once flew on an AA 757 in the bulkhead HNL-LAX-ORD, my knees were really stiff after that one - I would suggest there's another 6" of space in comparison.)