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Supersonic free fall from 120,000 feet live at 8:30AM EST (redbullstratos.com)
115 points by flipstewart on Oct 9, 2012 | hide | past | favorite | 61 comments



Maybe a little off topic:

Red Bull's marketing is impeccable. They started out with all the actionsport athletes and moved upstream to more mainstream, and I guess, more expensive sports (two Formula 1 teams, more soccer teams than I can count), while still doing these crazy things. From Parcours in Santorini, to Air Races all over the world. Seems like every crazy sporting event is sponsored by Red Bull.

I think these have allowed them to be still seen as "hip" and not just selling sugar water like Coca Cola.


Redbull: Sponsoring everything cool.

It is, absolutely, a genius marketing strategy. Their primary demographic just happens to be the kinds of people who watch insane sports. Brand recognition from those events is huge, and then people just happen to drop their brand-name when talking about the events to other people.

Probably cheaper in the long-run than trying to compete with someone like Coca Cola in more traditional campaigns, and way more effective.


Agreed.

And like Coke and Kleenex, through sheer brand awareness, they've achieved that rare feat in which a company's brand becomes synonymous with an object. In conversation throughout the world,

Soft Drink = "Coke" Tissue = "Kleenex" Energy Drink = "Red Bull"



There are cases where smaller companies with good marketing can out sell Coca Cola in local markets - a good example being Irn Bru:

http://en.wikipedia.org/wiki/Irn-Bru


and like all good things, it started by accident. (i got this story from one of their marketing managers) once upon a time someone at the formula 1 won a race. and the masterchief (or however the bosses of the racing teams are called) drank a red bull instead of champagne during the victory interview.

next day red bull was sold out in austria (which was their main market at that time)

they just took it from there.


As if winning a Formula 1 race isn't enough of a rush, you need some caffeine afterwards too!


"It was an accident," quoth their marketing manager. Yeah, riiiiiiiiight.


It’s more likely that a marketing manager would take personal credit for an accident (i.e. boosting their resume) than to attribute a brilliant marketing to an accident.


You are neglecting one issue: advertising and lawsuits. "Oh look, we have smuggled our product into the tightest-controlled advertising event, and we did it on purpose; sure, we'll happily pay you the $$$ for this priceless publicity boost." vs "Oh, it was an accident, there's no way we'll pay you anything."

I'm completely certain that the F1 organizers would sue the heck out of Red Bull for their unauthorized ad, if they only could prove RB did it on purpose (and RB isn't so foolish to provide them with ammunition).


What exactly do you think F1 would sue Red Bull for?

Without RB having a contract of some type with F1, it is unlikely there is any way for them to sue RB. It may be possible for F1 to sue the driver, but at this point that would seem ridiculous since RB is now a huge F1 sponsor.

Accidents also don't eliminate lawsuits. Even if there was a way for F1 to sue RB, they should still be able to sue them for accidents. For example, if RB had a contract with F1 which stipulated when and how RB could be shown, and RB showed their product at a different time by accident F1 could still sue them.


Hmm.. OK.. And how many free [insert kick back item here] will this marketing fellow get for this little effort :-?

Nevertheless, what a marketing effort! They really nailed this one.


> next day red bull was sold out in austria (which was there main markets at that time)

This is also where the Western version of Red Bull is from. Originally it was an energy drink in Thailand and an Austrian partnered up with the Thai owner, adapted it to suit the Western palate and ever since then they have been going incredibly strong and long survived all energy-drink competitors that shortly popped up during the 90s.

Mateschitz's and Yoovidhya's net worth is about 5 billion each.

I don't think there is any important extreme sport event they are not involved in. Their annual "Flugtag" is legendary here in Austria! http://en.wikipedia.org/wiki/Red_Bull_Flugtag


Yep, they've nailed the brand image without a doubt. Everything they do is to go "This isn't your dads soft drink", and it seems to have worked pretty well.

Also very cool, they own their own aerobatics team called The Flying Bulls, and they have a B25 bomber. Why? Because they can, and that's awesome.


Nitpick re "edge of space": Low earth orbit starts at around 160 km and orbits decay rapidly below 200 km. This is 36 km altitude. But what I think most people miss is that to "be in space" the way most people think about space you'll need to enter orbit which means that once you get up to 160+ km altitude you need to go sideways at roughly 24 times the speed of sound - and then you're in orbit. Then when you're all done having your fun you need to take all that orbital energy and do something with it. The best idea so far is to use it to burn up a heat shield. This business of going vertical a little higher than jets and a lot lower than satellites is a little pretentious. But it's fun and it's Red Bull so who cares!!


I'm not aware of any organization that determines being "in space" by velocity -- the FAI as well as the US DoD, NASA, and the FAA all go solely by altitude.

I'm also not sure what you mean by "the way most people think about space". The first American in space, Alan Shepard, flew a suborbital mission. I don't think you'll find many people who would argue he wasn't in space.

To be clear, there is no universally-agreed upon definition of space, let alone "the edge of space". There is no official definition of space in US law or policy. The NASA, the FAA, and the Air Force definitions (100km, 100km, 50 miles respectively) are only used for the purposes of awarding astronaut wings.

Personally, I'm fine with them calling it the edge of space to get more public attention to the mission, and they can get away with it because the cameras will show black sky and the curvature of the earth.


While there isn't anything special marking the edge of space, the generally accepted definition is 100km https://en.wikipedia.org/wiki/Edge_of_space


http://en.wikipedia.org/wiki/Air_sovereignty

Makes me interested to see what the treaties say as I'd be surprised it no one thought to limit the control of countries to allow satellites to pass without permission or allow space vehicles in general.

Though as you point out there is the Karman line convention.


Only a small fraction of orbital energy ends up burning the heat shield, most of it simply heats the air and creates a downdraft / wake.


There are precedents, see https://en.wikipedia.org/wiki/Joseph_Kittinger for other crazy skydives


He's working on the project as a consultant

"The record is currently held by Col. Joe Kittinger, who in 1960 jumped from 102,800 feet as part of a U.S. Air Force mission. On this attempt, 52 years later, Kittinger is a consultant and mentor.

He has also been giving Baumgartner advice on what to expect. For example, he described what it feels like to fall through space when there is so little air: "There's no way you can tell how fast you're going, because there's no visual cues."

But Kittinger rejects any suggestion that he is jealous that Baumgartner is poised to beat his record.

"Oh no. I'm delighted," he told CNN recently. "He's advancing science, and he'll do a great job."

http://www.cnn.com/2012/10/09/us/skydiver-record-attempt/ind...


He also did an IAmA in support of the project a few weeks ago: http://www.reddit.com/r/IAmA/comments/yc1ke/i_am_joe_kitting...


You have to be cut from a particular bitter length of cloth to be jealous over only keeping your world record for 52 years.


No kidding. Breaking Kittinger's record is a tribute to Kittinger.


As others have mentioned, Kittinger isn't "jealous" - in fact, he doesn't look at what he did as setting a "record," per se.

Kittinger's jumps were done as part of Project Manhigh and Project Excelsior, two U.S. military projects launched in the late 1950's (before the Gemini space program) to test whether a bailout system for astronauts could work. Kittinger had made a few military skydives, but it was an important fact that he wasn't a skydiver (as none of the Gemini astronauts would be skydivers, and know how to fly their bodies in freefall). The bailout system they were building had to be usable by even inexperienced pilots.

So Joe has often said he wasn't going up to set a record - and he hates it when people focus on that. He was just doing his job, trying to make sure the astronauts had a safe out on their way to set history. (In his view, it was only an coincidence that he set history himself along the way).


Have a read of his Excelsior I jump [0], the near fatal 60,000 foot jump that was the precursor to the 102,000 foot one. Incredible.

[0] http://stratocat.com.ar/artics/excelsior-e.htm


Kittenger was just pushing the envelop as a test pilot. The fact that he survived shows how uncrazy his approach was. When I was growing up in Orlando, he was best known locally as the skywriter for Rosey O' Grady's - he would go up just about every afternoon during tourist season.


Not to take anything away from Felix, but that jump with 50 year old technology seems even more impressive.


The tech to shoot and transmit this whole event live is almost as incredible as the event itself

http://www.redbullstratos.com/technology/cameras-communicati...


Just aborted due to high winds. They are going to retry tomorrow.


tomorrow also looks unlikely...no confirmation yet about tomorrow's jump as of now.


Is the web site overwhelmed? I'm getting "Loading Javascript" messages, but nothing is happening.

    We're just trying to load the data for you. If you
    don't have JavaScript enabled in your browser for
    this site, please switch it on and refresh the page
    in order to view the Live Jump experience.
It would be nice to know if it's working for other people.

Added in edit: OK - on weather hold - due off an hour from now.


The YouTube live view seems like it's struggling to cope with the demand, keeps stalling or failing to load for me.



I believe you're missing a few chars in the hash. Should be http://youtube.com/embed/vkJ5ItzEq3M, or for the full youtube page: http://youtube.com/watch?v=vkJ5ItzEq3M


Direct link to the live YouTube stream

http://www.youtube.com/watch?&v=vkJ5ItzEq3M#!


This year has been really great for awesome space events. Mars, 2 SpaceX missions, now this. I hope this is just a taste of things to come.


We went to the moon, what, 40 years ago? It's about time we started living in the space age.


Can someone explain the physics behind this?


Lots of the science was broken down over at Wired: http://www.wired.com/wiredscience/2012/02/stratos-space-jump...


Another silly question might be: won't he "burn up on reentry"? Clearly, he's falling from a different altitude than a rocket, and starting from 0, but what are the actual numbers like?


> Clearly, he's falling from a different altitude than a rocket, and starting from 0, but what are the actual numbers like?

Without an atmosphere, the result would be deterministic and trivial to compute:

acceleration = f(t) = g

velocity = ∫ f(t) dt = g * t

position = ∫∫ f(t) dt = 1/2 g t^2

(The value of g changes slightly for this problem, in this altitude domain.)

But because of the atmosphere, the calculation of velocity as a function of altitude is much more difficult. And it turns out that the atmospheric pressure as a function of altitude is not trivially characterized. And at high altitudes, it's not even constant -- it depends on temperature, the position of the sun in the sky, even the time in the 11-year sunspot cycle.

The air resistance of a falling object is some constant k (based on the object's size and surface roughness) times the square of the velocity times the air pressure. But the air pressure is changing as the descent unfolds, so such a computation ultimately relies on a numerical solution to a differential equation.

This is why one doesn't see a trivial equation describing descent velocity for a skydiver. I have worked out skydiver velocity profiles for constant air pressure nearer the surface:

http://arachnoid.com/sage/terminal_velocity.html

But this equation, only an approximation at lower altitudes, is of no use at all for a problem like the Baumgartner jump.


The air pressure is proportional to either v or v² depending on the speed and atmosphere.

For a friction force Fr, the terminal velocity is reached when the acceleration becomes null:

mg + Fr = 0

mg - k* Vterm² = 0

k, the friction coefficient depends on different parameters: http://en.wikipedia.org/wiki/Drag_equation

So in the end, the terminal velocity will depend on:

- The guy's weight (contrary to a free-fall's acceleration which is independent of mass)

- The "contact surface" between the body and the atmosphere.

- The atmosphere's density (which is lower than on Earth's surface).

The guy aims at reaching Mach 1. Note that due to the lower atmospheric pressure at this altitude, Mach 1 is a bit smaller than it is on the Earth's surface ( 301 m/s at 29 000 meters and -48 degrees C compared to 340 m/s at sea level ).

Finally, the term "free fall" is not appropriate as the definition of a free fall is "any motion of a body where its weight is the only force acting upon it."( http://en.wikipedia.org/wiki/Free_fall ) This does not take into account the drag which is not negligible here.


> The air pressure is proportional to either v or v² depending on the speed and atmosphere.

1. I think you mean "air resistance". Yes?

2. If so, then no, air resistance transitions from (linear) Stokes drag at low velocities to (aptly named) quadratic drag at higher velocities, as a function of velocity, but not a function of air pressure. So not "either v or v^2", but a combination of the two factors.

http://en.wikipedia.org/wiki/Drag_(physics)


It made my day to have my question answered by an honest-to-goodness rocket scientist. Thank you!

I think the numbers that best sum up the situation are provided by yardie and blaze33 though. I knew that stuff coming from space was obviously going to be moving faster than the guy's 0 velocity, but had no idea about the order of magnitude.


Yes I did mean that, thanks for correcting me. I was never very good at fluid dynamics :)


In addition to jlgreco's mention of 'sideways' momentum (like a shuttle re-entry) which this skydiver won't have, keep in mind he's falling from within the atmosphere so he's got resistance immediately and no chance to speed up to velocities that cause enough friction to burn up meteors. A meteor gets caught by Earth's gravity long before it touches Earth's atmosphere and has plenty of time to accelerate to fabulous speeds; when it hits the atmosphere, the speed makes for enough friction to burn/melt/destroy the thing.


No. Rockets are descending from orbital velocity (30,000mph) to terminal velocity (700mph). They have a tremendous amount of energy they have to get rid of as they come down which they do as heat. Baumgartner is taking a balloon up and then freefalling down. He's no where near orbital velocity so his energy expenditure will just be some air friction.

He might get a teensy bit warm on the way down.


A great deal of the energy that needs to be bleed off during re-entry of a formerly orbiting spacecraft is the kinetic energy it had from basically moving sideways at an incredible speed.


A typical low earth orbit re-entry speed is mach 25. Here with a max speed just above mach 1, there's 25²=625 times less energy to dissipate.


http://www.redbullstratos.com/science/speed-of-sound/

Does that help or are you looking for something more specific or unmentioned?


That does not mention my question at all - or at least I don't see it.


well he's not going to achieve a speed greater than 700mph, somewhat less than an object entering the earth's atmosphere at 17,500mph


There's a bit of detail here from his jump in July at 90,000 ft ... http://www.dailymail.co.uk/sciencetech/article-2178943/Felix...


While we're waiting for the weather to clear, you can watch nicely edited footage of Kittinger's 1960 record of 100,000 feet; it's at the start of the Boards of Canada video for Dayvan Cowboy: http://www.youtube.com/watch?v=A2zKARkpDW4


And it's aborted; 'Gusty winds'.


Looks like they've got a weather hold until 8am Mountain Time (10am Eastern)


Aborted for today, due to too much wind.


Actually, its at 9:30AM EST...


Speechless ...


Aborted.




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