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speede5 · 03-14-2014, 01:03 PM

Temperature at altitude stabilizes around -55c.

Halo jumps are in the 30K range but I don't think there's a rule. Anything over 10K would probably qualify since you need oxygen.

03-14-2014, 01:03 PM	#596
speede5 First Line Centre Join Date: Sep 2009 Exp:	Temperature at altitude stabilizes around -55c. Halo jumps are in the 30K range but I don't think there's a rule. Anything over 10K would probably qualify since you need oxygen.