Manuel1

That is not true, it depends on many factors and 20 feet is not some magical number... It is just an accepted standard. Why SCUBA dive or skydive at all? That is right. They are standards based off of models and experiance. Why violiate them? You can SCUBA and skydive using proper standards to midigate the risky sports. I very seriously doubt that one can survive 33' of depth on 100% o2 with out injuries or death. So why advocate it?

Quote> I'd be much more concerned about fire risk . . . This, I think, is one of the biggest unanticipated risks of O2 usage in aircraft. O2 systems are often difficult and awkward to turn off (i.e. the ones under the Otter seats) - turning them off during, say, an electrical fire might be very difficult. And at the flow rates many skydivers use them at, they could turn a smoking wire into a disaster.[/reply o2 isnt flammable. Look on the labels and it will be a class2 (non flammable). It is an oxidizer and can enhance a burn. You dont hear too much on o2 fires. Personally, I would be worried about Hypoxia. Not DCS or non flammable gases.

you can breathe 100% O2 @ 1atm for well over 24 hours. It's not a concern for skydivers. I'd be much more concerned about fire risk, or the biggest, not keeping it sealed up. If you are a certified scuba diver, you should ask your training agency for your money back. The military and science divers (NOAA) are trained not to exceed a 1.6PPo2 limit. Recreational divers are trained to not exceed 1.4 limits. At 100% o2 at 19 feet, you will be at a 1.6 PPo2 limit and at a much higher risk of oxtox. The US Navy, years ago used a 2.1 PPo2 and with invent of the doppler and thier high incident rate of oxtox, they rethought thier dive charts.

The DCS is manifested with the sudden change of pressure. One may noitce the sympthoms as much as 24 hours later. The military, science and medical communites disagrees on many aspects of DCS. Hell, they cant even on what the proper terms should be called (DCS, AGE, DCI) Even the predisposed factors suchs as body mass (fat tissure) tempurature, age, injuries and time at depth or altitude all are factors that increase injuries,but everybody has a different rate of o2 saturation and DCS predisposed factors. There ar no asbolutes in DCS. Once you take a hit, you are proven to be more predisposed for future DCS hits. The conversation was Halo with a cannual or a rebreather, not prebrething o2 and my point was that the rebreathers or cannual are not a good ideas. Now hypoxia should be discussed.

jsut like SCUBA diving, cept at altitude rather than depth Yep. Both are caused by depressurization. Scuba -> during the ascent from depth. Skydiving -> during the ride to altitude. Same concept. SCUBA divers develop DCS and AGE while skydivers develop aeroembolis. The big difference is that the skydiver will experiance immeditate relief after returning to the earths normal atmospheric pressure of 14.7 psi, while the scuba diver will experiance a relief of DCE/AGE case through a decompression chamber only. A cannula delivers only around 2-3 litres of O2 while a full face mask delivers 100% of O2. It should be around 4 hours of o2 saturation (breathing 100% o2) before you off load enough nitrogen, not 30 minutes. And then there is OXTOX (oxygen posioning) that you have to worry about also when you are saturating your self with 100% o2. Scuba divers are not able to breath 100% o2 below 20 feet of depth or they will oxtox and drown. This conversation sounds like on another board that I am on (deco stop). Whoever can go the deepest is the coolest . I say, why go down to 300 fsw? Why do a jump at 30,000 AGL?

There's the problem right there. When you challenge them on it, of course they're going to say that they would like to do it, because otherwise they figure you'll think they're a wimp. So quit trying to talk people into it. If the subject comes up, answer questions, describe how much you love it, whatever. But don't be pushy about trying to convince other people to join you. This just hit the nail on the head. I had a buddy that kept pushing me to go skydiving together to experiance it for the both of us for the first time. He had set up a date several times and a day or before the date to jump, he would cancel on me. I convinced myself that I really wanted to just try it just to say I experianced it. Once I did my tadem, I went right to the office and signed up for the course. I did a static jump that afternoon after completing my ground school. I now have 15 jumps and still counting.

I was thinking more along the lines of comparing skydiving to fishing. there are way more fishing deaths per year than skydiving. So fishing is more macho

Living fearlessly is not the same thing as never being afraid. It's good to be afraid occasionally. Fear is a great teacher Fear is the enemy of logic. Quote by FRANK SINATRA

you usually get road rash on where the road meets the body.

Oh trust me skydiving gear is NOTHING compared to paintball gear at the end of the day. leave that stuff in the car for a few hours and id rather walk home than smell that stuff. let them get a whiff of some gear after a tourney, theyll never complain again. i PROMISE You wanna smell something bad. Try a wet suit from SCUBA diving when you silted out inside of a wreck on a hot day. Nothing like neoprene drying out with fish poop and who knows what else in your wet suit.

He has a helmet on?? If you think that leather will keep the road rash off you if you go down, you got another thing coming. I been in three bike accidents and two of them I had leather on (no skid plates). The road rash was still there.

Damn, I love this sport. Lots of beer and now eight ways.....

That is funny. Yeah. There was NEVER a second thought of not buying the beer. I would really hate to have someone remember me NOT buying a round when I am wobbling around at 12000 AGL.

It was just posted in another thread but here are the generally accepted beer rules. http://www.skydiving.org.vt.edu/goodstuff/beer.htm Exactly. At first I thought it was just the guys and gals at the DZ I am jumping at. And then I read the "beer rules" on here and thought, HOLY CRAP, they all drink copious amount of beer. I was taught it is rude to buy a round and not drink what your buying. I guess I'll have to put my big boy pants on and have a beer then......

Okay. I am almost off student statis. I was told to buy beer when I am done with my student statis. I will hopefully be done with my A license in the spring. I was told to buy beer. I will be purchasing a rig in the summer. I was told to buy beer. Am I even allowed to skydive if I dont drink beer?? I love the sport, but come on guys and gals, it isnt really that scarey of a sport that I need to drink that much. I wonder how many AA meetings are held at the DZ's.