Phil 0 #1 September 30, 2002 We're planing on doing a high alt jump this next year. The only problem we're looking at, is the O2 supply in the plane "PC 6 Porter". We are requested to have O2 on the way up and as we jump. (Target about 8500 m/G that would be about 22000-24000 feet. Does anybody have experience with that? If yes, what kind of device did you use? They have to be out on the market, military only won't do us any good. tx for your input ... .. .how high can you fly with broken wings ... life's a journey not a destination Quote Share this post Link to post Share on other sites
PhreeZone 20 #2 September 30, 2002 There is a system for sale in the classifieds that you could use to get more info with probally...Yesterday is history And tomorrow is a mystery Parachutemanuals.com Quote Share this post Link to post Share on other sites
PhillyKev 0 #3 September 30, 2002 Did a 24000' jump at Rantoul. As did many many other people. All with O2 on the way up, but no bail out bottles. No problems that I know of jumping from there without bail out bottles. Quote Share this post Link to post Share on other sites
nicknitro71 0 #4 September 30, 2002 Ditto. With the hemoglobin completely saturated with O2 you have about 4 minutes before any symptoms of hypoxia occur. So when you jump from 24k you only starve for about a minute. I did the 24K @ Rantoul and the only differences I could tell were the air a bit cooler and the length of the freefall! When in the Army I did a 36K but we jumped with O2.Memento Audere Semper 903 Quote Share this post Link to post Share on other sites
billvon 3,120 #5 September 30, 2002 >Did a 24000' jump at Rantoul. No problems that I know of . . . We had a jumper in our 4-way experience pretty severe hypoxia in freefall after being off O2 for about 90 seconds. (23,000 foot exit.) He went blank and started to drool; later said his face was numb and things were getting gray. He recovered around 12,000 feet. It affects different people different ways. The critical items are: 1. Stay on O2 as long as possible. In some bigways, I've actually left the hose attached to my helmet until climbout. 2. Use the right amount. To go to 25,000 feet you need a little less than 2.5 lpm according to the FAA; 2.5 lpm is a slow trickle of O2. If it is blasting into your nose it's too much. Too much O2 has two bad effects: -you run out too soon -you can get sick a lot more easily; pure O2 both dries your nose and throat and helps some microorganisms grow. 3. Reduce effort. The less you move around, the less cached O2 you will use up. That 3-4 minutes of consciousness is reduced dramatically if you're expending a lot of effort. Quote Share this post Link to post Share on other sites
nacmacfeegle 0 #6 October 1, 2002 Try and contact Dave Hickling at Langar (UK), we used his Porter with an 02 system back in 99 for some British RW formation record attempts. mailto:info@bpslangar.co.uk Dr Ben Massey designed the systems we used in Thailand, but I have no contact details for him.-------------------- He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me. Thomas Jefferson Quote Share this post Link to post Share on other sites
howardwhite 6 #7 October 2, 2002 4. Give up smoking. I've seen smokers with purple lips during longish exposure even at 10-12 grand. HW Quote Share this post Link to post Share on other sites
Phil 0 #8 October 2, 2002 Tx for all the info. Here in Switzerland you have go in a pressure chamber where they will simulate a high altitude scenario. At 9000 m/g it will take about 90 seconds before it gets critical. The reason we had to have this test, is to get to know the symptoms of hypoxia. I will follow some of your leads. ... .. .how high can you fly with broken wings ... life's a journey not a destination Quote Share this post Link to post Share on other sites
