Quote Originally Posted by JimF4M1sicon View Post
Jumping out of a plane sounds like it would be fun. But what if the chute doesn't open? Do you pack your own? Halo jump with O2 sounds crazy, and pretty cold to me. What is the outside temp during those?

I took the easier route and scuba. Still have the O2, but a much slower and shorter fall, warmer too.
If the parachute doesn’t open, or open correctly, you cut it away and deploy the reserve. The main parachute is packed by the owner; the reserve is packed by an FAA certificated rigger. Outside temp depends on altitude, time of year, location, etc. Currently the temp here in eastern NC at 24k feet MSL is -19C. I've seen it snow in August inside the aircraft when the tail gate is opened at 24k feet. A 90+ degree temperature difference between exit and landing isn't outside the norm.