This photo shows a Boeing B52 bomber as it flies in close formation with our aircraft (a Boeing KC135 tanker) and about to be refuelled. Taken over the Timor Sea, just north of Darwin in 1982, the photo shows the wrinkles in the leading edge of the bomber's wing. These corrugations were constantly changing as the wings flexed, the fuselage twisted and the engine pods bounced up and down. The entire aircraft was in constant motion as it "wobbled" along behind us, and this was in the calm air of a mild September morning - around 0715hrs. I'd hate to see what happens in turbulence - B52 crews are often in the air for 20 - 30 hours (this one landed after 31 hours airborne), so they certainly must have plenty of faith in their aircraft.
Incidentally, the B52 is still flying in reducing numbers, and the aircrews are nearly all younger than the aircraft!