R4H,
thanks for the info. Back in 1975 we also had problems with the shock loading on the parachutes at 35000 feet. Pity I never recorded the parachute types. Re your ALM oxy problem. That is exactly the reason on these trials we carried two loadmasters. One for the drills and the other to see the big picture as any small snafu at those heights can swiftly escalate into a full on emergency. My dim memory tells me we were only allowed one such trip every four or five days.