Beerlight 0 #1 February 3, 2004 Anyone have the video from the 40K hot air balloon jump that took place at Edwards AFB, CA about 6 or 7 years ago? It was on TV, not sure what the show's name was. The balloon was circled by an F-16 filming some of the footage, as well as great on-board footage. One of the guys that jumped, had his oxygen turned off accidentally, and went unconcious from hypoxia. I'd like to use that vid in one of my classes. Thanks, Buck Quote Share this post Link to post Share on other sites
chuteless 1 #2 February 3, 2004 I doubt he got to 40K on hot air alone. He must have had helium as well. Quote Share this post Link to post Share on other sites
Beerlight 0 #3 February 3, 2004 Bill, I see your point. But, supposedly they used special burners that would ignite in the rarefied air. If I remember correctly, they had to re-ignite the burners on several occasions due to oxygen starvation problems. I think their final altitude was something like 43K. I'm checking with some of my Air Force (AF) brethren that might have worked on the project. It was co-sponsored by the AF. Quote Share this post Link to post Share on other sites
dkf1979 0 #4 February 3, 2004 Is this the guy you're asking about? Joe Kittinger? He holds the record for the highest altitude skydive. 102,000 FEET!!! He said when he left the balloon it didn't even feel like he was falling. Because of the lack of air resistance. Thought he had gone above the gravitational pull. First man to break the speed of sound without an aircraft!!! http://www.stratoquest.com/default.cfm?page=5 http://www.pbs.org/wgbh/nova/escape/skydive.htmlhttp://bodypilot.bounceme.net Quote Share this post Link to post Share on other sites
dkf1979 0 #5 February 3, 2004 well, almost broke the speed of sound. http://bodypilot.bounceme.net Quote Share this post Link to post Share on other sites
chuteless 1 #6 February 3, 2004 he would have broken the Speed of sound if he had not used a drogue chute to stabilize himself in the rarified atmosphere. He did hit over 500 MPH, the Speed of Sound approx 680 MPH Good jump nevertheless. Imagine that one in your log book.!!!! Quote Share this post Link to post Share on other sites
dkf1979 0 #7 February 3, 2004 says he peaked at 614 mph. damn. Quote Share this post Link to post Share on other sites
Beerlight 0 #8 February 3, 2004 sorry. Joe is not the guy. These guys were specifically trying the highest "hot air" balloon jump. Joe Kittingers' was a sealed envelope. thanks though........ Quote Share this post Link to post Share on other sites
chuteless 1 #9 February 3, 2004 I know Joe opened "high", but imagine if someone was already opened and Joe passed close to him still in freefall. Wouldnt that guy do a double take? LOL Quote Share this post Link to post Share on other sites
FrogNog 1 #10 February 3, 2004 Quotehe would have broken the Speed of sound if he had not used a drogue chute to stabilize himself in the rarified atmosphere. He did hit over 500 MPH, the Speed of Sound approx 680 MPH Good jump nevertheless. Imagine that one in your log book.!!!! What was the speed of sound at his exit altitude? Doesn't the speed of sound decrease as the medium becomes more compressible? -=-=-=-=- Pull. Quote Share this post Link to post Share on other sites
chuteless 1 #11 February 3, 2004 Im not sure what the speed of sound would be at his altitude, but the most generally used figure is 680 MPH, and I would think that is at MSL. Some easy research onthe net should solve that question. Bill Cole D-41 Quote Share this post Link to post Share on other sites
chuteless 1 #12 February 3, 2004 I just checked out the Speed of sound on the internet. I guessed that the temperature at 102000 ft would be -60 C, and I clicked on the site and all the other data based on that Celcius temperature potpped in It reads: -60 C = -76F which gives 294.799 Meters per second 967.1916 Feet per second 660.352 Miles per hour That is the speed of sound with tghe Temperature at 102000 feet "GUESSED" at -60 celcius. I al;so checked out the Speed of sound with a proposed temperature of + 20 Celcius which equals 68 F......which gives the speed of sound as 343,599 Meters per second 1127.296 feet per second 769.664 Miles per hour This indicates that the Speed of sound increases as the temperature increases, and I would think this would take into consideration that the increase in Temp would also mean heavier atmosphere. Bill Cole D-41 Quote Share this post Link to post Share on other sites
elfanie 0 #13 February 3, 2004 QuoteI know Joe opened "high", but imagine if someone was already opened and Joe passed close to him still in freefall. Wouldnt that guy do a double take? LOL I'm just trying to figure out how you'd spot that high up... Not like you'd see the dropzone...right? That would be an amazing jump. -------------------------------------------- Elfanie My Skydiving Page Fly Safe - Soft Landings Quote Share this post Link to post Share on other sites
mjosparky 4 #14 February 3, 2004 QuoteQuoteI know Joe opened "high", but imagine if someone was already opened and Joe passed close to him still in freefall. Wouldnt that guy do a double take? LOL I'm just trying to figure out how you'd spot that high up... Not like you'd see the dropzone...right? That would be an amazing jump. Just like any other jump, 5 right, 5 right, 5 right, 10 left and cut. SparkyMy idea of a fair fight is clubbing baby seals Quote Share this post Link to post Share on other sites
Beerlight 0 #15 February 3, 2004 Guess you'd call this a hijacked thread!!!! But really, it was a hot air balloon jump, 40,000 feet or a lil higher, Edwards AFB, sometime in the early 90's. TOMMY LAND if your out there I know you set up the oxygen console for the jump I'm talking about!!! TOMMY..........HELP!!!! or any of the phyz techs that were at Edwards then. Quote Share this post Link to post Share on other sites
TribalTalon 0 #16 February 4, 2004 wroooooooong. the speed of sound DECREASES as the altitude increases. Think about it. Sound travels much much faster in water. Why? because water is very dense, and this is also why sound travels better on cold, humid days. Therefore you could think that sound travels better at high altitudes since its so cold up there, but the air pressure at that altitude is much less, and the density as a result is very miniscule. i dont have the willpower to go back to my books and figure out what the speed of sound was at that high altitude, but it's less then 680 mph. 680 mph is at ground level. Sorry i'm pretty brief in describing it but i'm extremely worn out and was just dropping in to make a correction. Quote Share this post Link to post Share on other sites chuteless 1 #17 February 4, 2004 In establishing the figures I posted, I guessed at the temperature. I believe the temperature stays about the same all the way to infinity, once you reach a certain altitude, ( I think somewhere around 50,000 feet.) I also stated that the 680 was MSL, but if you lookat the figures for -60Celcius, It seems about right or close to it. Bill Cole D-41 Quote Share this post Link to post Share on other sites Beerlight 0 #18 February 4, 2004 Yep Buck, you got hijacked.......... Quote Share this post Link to post Share on other sites bch7773 0 #19 February 4, 2004 speed of sound at sea level: 761 mph speed of sound at approx 40k ft: 660 mph looking at a few websites, I finally found one that has a non-bugged speed of sound calculator. http://www.aerospaceweb.org/question/atmosphere/q0102c.shtml but it appears as though the speed of sound at 100k ft, where that other guy jumped from, is 675 mph., so it doesn't vary uniformly with altitude. MB 3528, RB 1182 Quote Share this post Link to post Share on other sites jwillwon3 0 #20 July 1, 2012 I have that video and was part of the team. Jeff Sobolik, main jumper (his prodject) JayJay Johnson cameraman jumper from the Wings of Blue AirForce skydive team, Scott Cox was the onboard oxygen monitor and Major Ron Rosepink piloted the balloon. Jeff was 200 feet off the deck when he unstowed the brakes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![email]me jwillwon3@yahoo.com Quote Share this post Link to post Share on other sites Join the conversation You can post now and register later. If you have an account, sign in now to post with your account. Note: Your post will require moderator approval before it will be visible. Reply to this topic... × Pasted as rich text. Paste as plain text instead Only 75 emoji are allowed. × Your link has been automatically embedded. Display as a link instead × Your previous content has been restored. Clear editor × You cannot paste images directly. Upload or insert images from URL. Insert image from URL × Desktop Tablet Phone Submit Reply 0
chuteless 1 #17 February 4, 2004 In establishing the figures I posted, I guessed at the temperature. I believe the temperature stays about the same all the way to infinity, once you reach a certain altitude, ( I think somewhere around 50,000 feet.) I also stated that the 680 was MSL, but if you lookat the figures for -60Celcius, It seems about right or close to it. Bill Cole D-41 Quote Share this post Link to post Share on other sites
Beerlight 0 #18 February 4, 2004 Yep Buck, you got hijacked.......... Quote Share this post Link to post Share on other sites
bch7773 0 #19 February 4, 2004 speed of sound at sea level: 761 mph speed of sound at approx 40k ft: 660 mph looking at a few websites, I finally found one that has a non-bugged speed of sound calculator. http://www.aerospaceweb.org/question/atmosphere/q0102c.shtml but it appears as though the speed of sound at 100k ft, where that other guy jumped from, is 675 mph., so it doesn't vary uniformly with altitude. MB 3528, RB 1182 Quote Share this post Link to post Share on other sites
jwillwon3 0 #20 July 1, 2012 I have that video and was part of the team. Jeff Sobolik, main jumper (his prodject) JayJay Johnson cameraman jumper from the Wings of Blue AirForce skydive team, Scott Cox was the onboard oxygen monitor and Major Ron Rosepink piloted the balloon. Jeff was 200 feet off the deck when he unstowed the brakes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![email]me jwillwon3@yahoo.com Quote Share this post Link to post Share on other sites
