I recall once at the Sunderland Airshow perhaps in 2001ish when a Gill Airways (remember them?
) ATR was flying a routine and remember being extremely impressed with some one the manouvres being flown: VERY steep wing overs, high speed passes and steep climbs, all very impressive but it did make me wonder about the stresses on the airframe. I believe on the two days of the show, both an ATR-42 and and ATR-72 were used and obviously both aircraft will handle differently but were seemingly doing the same manouvres. Anyone remember?