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100,000 feet in a BALLOON?

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msuspartans24

Well-known member
Joined
Aug 12, 2004
Posts
129
A friend of mine says he read somewhere that a manned balloon has reached 100,000 feet. Anyone know if there is any truth to this.
 
google is a wonderful thing!-:)

"1961, US Navy Officers Victor A. Prather, Jr and Malcolm Ross rose from a zero-pressure balloon at an altitude of 113,739.9 feet."
 
Larry Walters

Larry's boyhood dream was to fly. When he graduated from high school, he joined the Air Force in hopes of becoming a pilot. Unfortunately, poor eyesight disqualified him. When he was finally discharged, he had to satisfy himself with watching jets fly over his backyard.

One day, Larry, had a bright idea. He decided to fly. He went to the local Army-Navy surplus store and purchased 45 weather balloons and several tanks of helium. The weather balloons, when fully inflated, would measure more than four feet across. Back home, Larry securely strapped the balloons to his sturdy lawn chair. He anchored the chair to the bumper of his jeep and inflated the balloons with the helium. He climbed on for a test while it was still only a few feet above the ground. Satisfied it would work, Larry packed several sandwiches and a six-pack of Miller Lite, loaded his pellet gun-figuring he could pop a few balloons when it was time to descend-and went back to the floating lawn chair. He tied himself in along with his pellet gun and provisions. Larry's plan was to lazily float up to a height of about 30 feet above his back yard after severing the anchor and in a few hours come back down. Things didn't quite work out that way. When he cut the cord anchoring the lawn chair to his jeep, he didn't float lazily up to 30 or so feet. Instead he streaked into the LA sky as if shot from a cannon.

He didn't level of at 30 feet, nor did he level off at 100 feet. After climbing and climbing, he leveled off at 11,000 feet. At that height he couldn't risk shooting any of the balloons, lest he unbalance the load and really find himself in trouble. So he stayed there, drifting, cold and frightened, for more than 14 hours. Then he really got in trouble. He found himself drifting into the primary approach corridor of Los Angeles International Airport. A United pilot first spotted Larry. He radioed the tower and described passing a guy in a lawn chair with a gun. Radar confirmed the existence of an object floating 11,000 feet above the airport. LAX emergency procedures swung into full alert and a helicopter was dispatched to investigate. LAX is right on the ocean. Night was falling and the offshore breeze began to flow. It carried Larry out to sea with the helicopter in hot pursuit. Several miles out, the helicopter caught up with Larry. Once the crew determined that Larry was not dangerous, they attempted to close in for a rescue but the draft from the blades would push Larry away whenever they neared. Finally, the helicopter ascended to a position several hundred feet above Larry and lowered a rescue line. Larry snagged the line and was hauled back to shore. The difficult maneuver was flawlessly executed by the helicopter crew. As soon as Larry was hauled to earth, he was arrested by waiting members of the LAPD for violating LAX airspace. As he was led away in handcuffs, a reporter dispatched to cover the daring rescue asked why he had done it. Larry stopped, turned and replied nonchalantly, "A man can't just sit around."
 
They USAF guy in the 60's took the ride up and then jumped out. Think the purpose was to test high-velocity opening parachutes. Anyway, the point is that he broke Mach 1 in free fall...Watch your step, the first one is a doozy :)
 
umm it is not even possible to break mach 1 as a human, our terminal velocity is much lower than that and even at that altitude the speed of sound is still faster, i might be missing something about this story though.
 
Think the purpose was to test high-velocity opening parachutes. Anyway, the point is that he broke Mach 1 in free fall

Wouldnt you love to have that job....
"ok Bob get up there and see if that shoot opens once you hit mach 1"
 
Joseph Kittenger is the one who made the 100,000+ foot parachute jump in the 60's. Steve Fossett is attempting to break 100,000 feet in a sailplane using mountain wave. There is a hell of a lot more interesting things that fly then powered airplanes.
 
idratherfly4283 said:
umm it is not even possible to break mach 1 as a human, our terminal velocity is much lower than that and even at that altitude the speed of sound is still faster, i might be missing something about this story though.
Remember, you are thinking of terminal verocity of the very dense air in the lower atmosphere...

"In freefall for four and a half minutes, Kittinger fell at speeds up to 714 mph, exceeding the speed of sound. He experienced temperatures as low as -94 degrees Fahrenheit. Kittinger opened his parachute at 18,000 feet and landed safely in the New Mexico desert after a 13 minute 45 second descent."

http://www.af.mil/history/person.asp?dec=1960&pid=123006518
 
idratherfly4283 said:
umm it is not even possible to break mach 1 as a human, our terminal velocity is much lower than that and even at that altitude the speed of sound is still faster, i might be missing something about this story though.

Umm, true airspeed varies with density as does the speed of sound. Think about what Mach 1 they're talking about... On top of all of that, I'd trust the NASA guys.

You're on the right track, though: if he had kept up that pace all the way down into the twenties, he'd have gone transonic LOCALLY and been in serious, serious trouble. He was freefalling, unfettered, and was making some serious headway when he blew through the speed of sound in an ideal gas at ISA.

Doncha have a barber pole in that turboprop your time is risin' in? Wonder why it moves? Same reason. Yon ship flyeth faster with respect to Vmo at a given airspeed as ye climb... right? Except the engineers are kinda fudging it a little with exactly which Mach 1 the jumper exceeded.

It's like asking a transon dispatcher how long will a flight take at Mach .83? He'd have no idea. .83 at sea level? 330?

** dang, you guys are fast.
 

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