Most were built with nylon webbing that sags with time or cheap foam thats long since lost its resilience. Upholstery shops sometimes deal with this merely by stitching fresh fabric over the old stuff or by replacing the underpinnings with more of the same, although some shops make an honest attempt at improving the seats underlying foundation.
One company thats kicked things up a notch is Oregon Aero, which has made a handy little business out of marketing the heck of an open-cell foam product know as conformal foam.
This stu...
Forget crashworthiness, durability, looks and adjustability, the average aircraft seat circa 1975 fails miserably on one count alone: Comfort.
Most were built with nylon webbing that sags with time or cheap foam thats long since lost its resilience. Upholstery shops sometimes deal with this merely by stitching fresh fabric over the old stuff or by replacing the underpinnings with more of the same, although some shops make an honest attempt at improving the seats underlying foundation.
