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Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 5:12 am
by Chris Peterson
Seems like something is wrong with the caption for the
November 2 APOD. The Ares 1-X is certainly not
"the first non-shuttle rocket launched from Kennedy Space Center since the Saturn...". Maybe they meant to say the first non-shuttle rocket intended to carry humans?
Re: Ares Launch
Posted: Mon Nov 02, 2009 12:15 pm
by apodman
Maybe they meant first to use the launch complex, SLC-39 or whatever.
Kennedy Space Center: Launch Archives
Posted: Mon Nov 02, 2009 1:38 pm
by bystander
apodman wrote:Maybe they meant first to use the launch complex, SLC-39 or whatever.
Chris Peterson wrote:Maybe they meant to say the first non-shuttle rocket intended to carry humans?
Or maybe the first non-expendable, non-shuttle rocket?
Kennedy Space Center: Launch Archives
Kennedy Space Center: Launch Complex 39
Pileodes?
Posted: Mon Nov 02, 2009 2:50 pm
by neufer
http://en.wikipedia.org/wiki/Pileus_(meteorology) wrote:
<<A pileus (Latin for cap) is a small, horizontal cloud that can appear above a cumulus or cumulonimbus cloud, giving the parent cloud a characteristic "hoodlike" appearance. Pilei tend to change shape rapidly.
They are formed by strong updrafts acting upon moist air at lower altitudes, causing the air to cool to its dewpoint. As such, they are usually indicators of severe weather, and a pileus found atop a cumulus cloud often foreshadows transformation into a cumulonimbus cloud, as it indicates a strong updraft within the cloud. Clouds that are attached to pileus are often given the suffix "pileus" or "with pileus". For example, a cumulonimbus cloud with a pileus attached to it would be called "cumulonimbus with pileus".
Pilei can also form above ash clouds from erupting volcanoes.>>
November 2 APOD
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 3:22 pm
by Star*Hopper
Or, maybe they used the wrong image? For some reason, that one looks more like the 'Trojan'.
At least, that seems more....ummmm......fitting.
~*
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 4:30 pm
by brooksindy
Chris Peterson wrote:Seems like something is wrong with the caption for the
November 2 APOD. The Ares 1-X is certainly not
"the first non-shuttle rocket launched from Kennedy Space Center since the Saturn...". Maybe they meant to say the first non-shuttle rocket intended to carry humans?
Concur. There have been many rocket launches at KSC, but no rockets designed for human flight other than shuttles.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 5:55 pm
by emc
Hey, it’s not rocket science… wait a minute… man… just a minute man… What are you doing Dave?... Don’t think I don’t know what you’re UP to… Stop. Stop Dave. Ok, so it is rocket science.
What I want to know is… where are the extra-galactic propulsion systems? Are we stuck in this somewhat barren solar system... with only one planet out of several that supports advanced life… don’t it make you feel small?
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 6:22 pm
by jerbil
One aspect of the photograph which interests me is the condensation occurring thanks to the lower pressure and hence adiabatic lowering of temperature near the front of the nose of this machine.
A stunningly interesting (to me) APOD was of a jet aircraft travelling through the sound barrier, displaying a similar effect. Please refer to the
APOD of August 19th 2007.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 6:45 pm
by ovatlantis
The caption is correct. Launch Pads 39A and B are the only ones at the Kennedy Space Center. Unmanned rocket launches take place from neighboring Cape Canaveral Air Force Station.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 7:15 pm
by iamlucky13
ovatlantis wrote:The caption is correct. Launch Pads 39A and B are the only ones at the Kennedy Space Center. Unmanned rocket launches take place from neighboring Cape Canaveral Air Force Station.
Precisely. Atlas V, Delta IV and Delta II, and previously Titan IV all fly from the Air Force Station.
I've got to say, that is one of the neatest vapor cones I've ever seen.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 7:23 pm
by Chris Peterson
ovatlantis wrote:The caption is correct. Launch Pads 39A and B are the only ones at the Kennedy Space Center. Unmanned rocket launches take place from neighboring Cape Canaveral Air Force Station.
Thanks. I do vaguely recall that distinction. I've been to KSC for unmanned launches, and the difference is not obvious, since you normally enter via KSC and there is no obvious transition to the Air Force Station when you travel to different launch pads.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 8:57 pm
by neufer
iamlucky13 wrote:ovatlantis wrote:The caption is correct. Launch Pads 39A and B are the only ones at the Kennedy Space Center. Unmanned rocket launches take place from neighboring Cape Canaveral Air Force Station.
Precisely. Atlas V, Delta IV and Delta II, and previously Titan IV all fly from the Air Force Station.
http://en.wikipedia.org/wiki/File:Cape_ ... ad_39B.jpg
![Image](http://upload.wikimedia.org/wikipedia/commons/b/b9/CCAFS.jpg)
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 9:33 pm
by SkyGazerGPS
My Prius can do 62MPH in under 8 seconds... granted, not vertically
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 9:37 pm
by apodman
SkyGazerGPS wrote:My Prius can do 62MPH in under 8 seconds... granted, not vertically
![Very Happy :D](./images/smilies/icon_biggrin.gif)
You might be edged out in the payload specs as well. And I'll bet the Ares would accelerate faster without a full tank.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 10:30 pm
by tblaxland
I also have a nitpick with the caption:
Pictured above, the Ares 1-X blasts into space...
Ares I-X did not get to space (nor was it planned to). The apogee was only approx 46 km and the most common definition of the boundary of space is 100 km.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Mon Nov 02, 2009 10:53 pm
by DonAVP
I was at the cape last week and saw the launch. I was at Coco Beach about 20 miles south of the launch pad. It took close to 30 seconds for the sound to reach me. It was not loud like distant thunder. The rocket arched over quickly after launch. The sonic cloud in the photo was there less than a second. I think that is when the rocket hit mach one. That was about five or six second after the launch.
From want I understand this is the same solid rocket booster that are on the shuttle. The next stage (which did not fire) is a liquid rocket and above that is a capsule for manned flight only bigger than the Apollo. Very exiting to see a launch.
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 1:33 am
by Star*Hopper
SkyGazerGPS wrote:My Prius can do 62MPH in under 8 seconds... granted, not vertically
![Very Happy :D](./images/smilies/icon_biggrin.gif)
SURE it will!! Vertical isn't a one-way street, y'know.
(Think Grand Canyon....& brake failure.)
~*
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 5:11 pm
by SkyGazerGPS
Yesterdaze post about my Prius acceleration was tongue-in-cheek and referred to the words used in the description of the Ares 1-X launch:
The tremendous thrust of the Ares 1-X can bring the massive rocket from a standing start to a vertical speed of over
100 kilometers per hour in under eight seconds...
Clearly, 62 MPH was passed long before 8 seconds
-Rich
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 5:43 pm
by neufer
SkyGazerGPS wrote:Yesterdaze post about my Prius acceleration was tongue-in-cheek and referred to the words used in the description of the Ares 1-X launch:
The tremendous thrust of the Ares 1-X can bring the massive rocket from a standing start to a vertical speed of over
100 kilometers per hour in under eight seconds...
Clearly, 62 MPH was passed long before 8 seconds
100 kilometers per hour = 62 MPH
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 6:02 pm
by ovatlantis
The thrust to weight ratio and thus acceleration of Ares 1-X is almost the same as the shuttle.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 7:46 pm
by neufer
ovatlantis wrote:The thrust to weight ratio and thus acceleration of Ares 1-X is almost the same as the shuttle.
Using
this chart I calculate that the initial accelerations are:
[list]0.63 g's : Shuttle
0.35 g's : Ares 1-X[/list][Personally, I don't think that SkyGazerGPS could handle 0.63 g's.
![Wink :wink:](./images/smilies/icon_wink.gif)
]
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 8:42 pm
by apodman
neufer wrote:0.63 g's : Shuttle
0.35 g's : Ares 1-X
Don't forget he has to handle 1.63 or 1.35 g's when you add 1 for gravity.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 8:56 pm
by neufer
apodman wrote:neufer wrote:0.63 g's : Shuttle
0.35 g's : Ares 1-X
Don't forget he has to handle 1.63 or 1.35 g's when you add 1 for gravity.
Not in a Prius.
http://www.youtube.com/watch?v=4z88U915uq8
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 9:05 pm
by apodman
Yes, in free fall you may omit the gravity term. But I was thinking of the +y direction again. Keep looking up.
Re: Ares 1-X Launch (2009 Nov 2)
Posted: Tue Nov 03, 2009 9:48 pm
by SkyGazerGPS
neufer,
Actually, in a 1st order approx, I only experience 0.35 g's since, Prius does 0-60 MPH in 8 secs (with 300 ft-lbs torque).
SkyGazerGPS
--------------------------------------------------------------------------------------
neufer wrote:apodman wrote:neufer wrote:0.63 g's : Shuttle
0.35 g's : Ares 1-X
Don't forget he has to handle 1.63 or 1.35 g's when you add 1 for gravity.
Not in a Prius.
http://www.youtube.com/watch?v=4z88U915uq8