Main Menu

Red Bull Stratos

Started by Triple J, February 23, 2010, 10:52:01 AM

Previous topic - Next topic
Print
Go Down Pages 1 ... 3 4 5 6 7 ... 12
User actions

derby

#60
October 10, 2012, 02:54:51 PM
-- derby

'07 Suz GSX-R750

Retired rides: '05 Duc Monster S4R, '99 Yam YZF-R1, '98 Hon CBR600F3, '97 Suz GSX-R750, '96 Hon CBR600F3, '94 Hon CBR600F2, '91 Hon Hawk GT, '91 Yam YSR-50, '87 Yam YSR-50

click here for info about my avatar

ducatigirl100

#61
October 10, 2012, 05:45:09 PM
interesting question's....  :-\

the reason that he can break the speed of sound it's because the density of the air is thinner in the stratosphere....

but what will happen when the atmosphere will become thicker as he approaches the ground ?? because the terminal velocity of a object of that size is around 275 kmh (when freefalling in parachute) ???

theoretically the friction should produce heat as he decelerate ??

and yes I'm blonde ... ;D

Kopfjager

#62
October 10, 2012, 06:10:04 PM
Quote from: ducatigirl100 on October 10, 2012, 05:45:09 PM
interesting question's....  :-\

the reason that he can break the speed of sound it's because the density of the air is thinner in the stratosphere....

but what will happen when the atmosphere will become thicker as he approaches the ground ?? because the terminal velocity of a object of that size is around 275 kmh (when freefalling in parachute) ???

theoretically the friction should produce heat as he decelerate ??

and yes I'm blonde ... ;D




http://www.reddit.com/r/askscience/comments/117ere/what_will_prevent_felix_baumgartner_from_burning/
Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

DarkMonster620

#63
October 10, 2012, 06:12:55 PM
Quote from: ducatigirl100 on October 10, 2012, 05:45:09 PM
...
and yes I'm blonde ... ;D


and very intelligent . . .
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 08:34:34 AMDucati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."

Triple J

#64
October 10, 2012, 07:34:29 PM
Quote from: kopfjäger on October 10, 2012, 06:10:04 PM

http://www.reddit.com/r/askscience/comments/117ere/what_will_prevent_felix_baumgartner_from_burning/

Is that supposed to be an answer? Looks like a bunch of people trying to figure it out to me...might as well link to here!  [laugh]

Quote from: ducatigirl100 on October 10, 2012, 05:45:09 PM
the friction should produce heat as he decelerate ??


That's a good question. The answer is likely that he will generate some heat as the atmosphere thickens and he slows down; however, he won't be going fast enough to generate dangerous levels of heat...plus, it's extremely cold at that altitude to begin with so that will also keep the heat down. I'd guess the cold is more of a problem than the heat.

Supersonic missiles and aircraft generate significant heat, but they're going a lot faster. Typical airliners, which can travel fairly close to the speed of sound (within about 100 mph of it at altitude), still get ice deposits on the plane during flight.

Kopfjager

#65
October 10, 2012, 07:49:48 PM
Quote from: Triple J on October 10, 2012, 07:34:29 PM
Is that supposed to be an answer? Looks like a bunch of people trying to figure it out to me...might as well link to here!  [laugh]

That's a good question. The answer is likely that he will generate some heat as the atmosphere thickens and he slows down; however, he won't be going fast enough to generate dangerous levels of heat...plus, it's extremely cold at that altitude to begin with so that will also keep the heat down. I'd guess the cold is more of a problem than the heat.

Supersonic missiles and aircraft generate significant heat, but they're going a lot faster. Typical airliners, which can travel fairly close to the speed of sound (within about 100 mph of it at altitude), still get ice deposits on the plane during flight.

There ya go  :D
Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

duccarlos

#66
October 11, 2012, 03:30:20 AM
Shouldn't the larger surface area of those objects also increase the friction and in return the heat?
Quote from: polivo on November 16, 2011, 12:18:55 PM
my keyboard just served me with paternity suit.

Monsterlover

#67
October 11, 2012, 04:37:03 AM
Yes
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Slide Panda

#68
October 11, 2012, 05:18:56 AM
As well and rough textured or irregular surfaces. His suit is far from aerodynamic perfection. The speeds he'll hit will be mostly a factor of atmo density - or lack there of at the altitude he'll be jumping from.

Can't have friction if something ain't there...

As he descends and the amto gets thicker his terminal velocity will reduce proportionally.

And yeah.. hes not going to burn up
"The Red Bull Stratos team estimates Baumgartner will step out of his capsule into temperatures of minus 10 degrees Fahrenheit (minus 23 degrees Celsius). As he plummets, he could experience minus 70 degrees F (minus 56 degrees C) or lower. In such cold air, Baumgartner's body would be unable to maintain a core temperature of 98.6 degrees F (37 degrees C) for long. When body temperature drops to 82 degrees F (28 degrees C), unconsciousness can occur. Death is likely when the body dips below 70 degrees F (21 degrees C)."
- From an article on ways he can die...
-Throttle's on the right, so are the brakes.  Good luck.
- '00 M900S with all the farkles
- '08 KTM 690 StupidMoto
- '07 Triumph 675 Track bike.

cokey

#69
October 11, 2012, 09:58:15 AM
Disc channel and velocity have space jump in the program name but no show
I WIN
Quote from: my wifeOk babe I surrender to u.  U may work me out till I drop

Quote from: Timmy Tucker on February 27, 2011, 11:11:58 AM
About the goat...
His name was Bob, but the family called him BeelzeBob. 
make the beast with two backs goats.

ducatigirl100

#70
October 13, 2012, 03:31:08 PM
Quote from: Darkmonster620 on October 10, 2012, 06:12:55 PM
and very intelligent . . .

tanks  [thumbsup]

now lets see him burning up ...lol  [popcorn]   nah just kidding I'm sure I'll be fine  [laugh]

He Man

#71
October 13, 2012, 09:28:29 PM
If his suit fails at those temps, hypoxia would kick in and he would hopefully pass out before freezing. Though with the way they are preparing for this, i think he is in great hands.

the amount of force pulling him in is directly related to his mass, so a heavier object would generate more force. He weighs close to nothing so the increasing air resistance would slow him down almost instantly to his terminal velocity.

Kopfjager

#72
October 13, 2012, 09:31:22 PM
Quote from: He Man on October 13, 2012, 09:28:29 PM
If his suit fails at those temps, hypoxia would kick in and he would hopefully pass out before freezing. Though with the way they are preparing for this, i think he is in great hands.

the amount of force pulling him in is directly related to his mass, so a heavier object would generate more force. He weighs close to nothing so the increasing air resistance would slow him down almost instantly to his terminal velocity.



Is that a text book answer.  :D
Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

Monsterlover

#73
October 13, 2012, 10:53:23 PM
If the suit failed id worry less about freezing and more about blood boiling and my body trying to turn itself inside out.

There's hardly any pressure up there.
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Ddan

#74
October 14, 2012, 05:01:24 AM
Not directly accurate, but this probably gives an idea of how much (or little) heat he's likely to generate

http://www.aerospaceweb.org/question/planes/q0199a.shtml
2000 Monster 900Sie, a few changes
1992 900 SS, currently a pile of parts.  Now running
                    flogged successfully  NHMS  12 customized.  Twice.   T3 too.   Now retired.

Ducati Monster Forum at
www.ducatimonsterforum.org
Print
Go Up Pages 1 ... 3 4 5 6 7 ... 12
User actions