Last 727 I worked on I had to go to TFS to fix a hydraulic leak.
Peach Air(?). Peach stood for Pax Expect A Crappy Holiday.
Never got round to comparing fuselage skin gauges or any
other structural design features.
Good old tough aircraft. A flying Tank!
But also loved the 767. A little more delicate, but Great to
fly in and work on.
757? No! Didn't like them.
All time favourite was the DC 10-30. (Freighter.)