Jump to content

Talk:Armadillo Aerospace

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia

Previous discussions without headers

[edit]

According to their homepage and reports, the abandonment of 90% hydrogen peroxide was very strongly influenced by a near-inability to get sufficient amounts of it. "It sucked that the lack of 90% peroxide prevented us from flying any vehicles for the last eight months"

— Preceding unsigned comment added by 81.173.174.193 (talkcontribs) 14:26, 20 March 2005‎ (UTC)[reply]

Email

[edit]

John Carmack (identifiable due to his well-known email address) sent the following email to the arocket distribution list when asked whether it was ok to use pictures from www.armadilloaerospace.com

"Just an idea, what were the general specs for these vehicles? If you specify them, we can get them added to the Wikipedia and/or Encyclopedia Astronautica... Have the Pixel and Texel vehicles got a family name? Also, are any of the pictures of Pixel or Texel (or any other images from Armadillo) releaseable under GPL?"

Date: Wed, 08 Nov 2006 20:46:27 -0600
To: arocket@exrocketry.net
From: John Carmack <johnc@idsoftware.com>

I hate to fill in a form, because there are so many variables in 
specification, but here are most of the details:

Pictures from the Armadillo website can be used.

The family is "quads".  Pixel and Texel have only very minor 
differences between them.

We have done over 30 tethered test flights, but the 3.1 flights at 
 the cup are the only free flights so far.

We have never taken exact dimension measurements, but the spheres are 
36" diameter, and everything can be estimated from that.  The dry 
mass is 650 pounds.  Official payload for the Lunar Lander Challenge 
is 55 pounds, obviously we could carry much more if we don't need to 
fly for 180 seconds.

The injector for XPC-06 is, in Armadillo speak, 
"FOF-twisted-squished-extraFilm-aluminum", the chamber is a 20" long 
x 8" OD carbon fiber reinforced graphite piece from Cesaroni 
Aerospace.  The throat is 3.25" diameter.  The nozzle expansion is 
only 2:1, optimizing for around 150 psi chamber pressure, avoiding 
massive overexpansion at the end of the run.

For level 1 flights, we load 360 pounds of 90% ethanol (one 55 gallon 
drum) and around 500 pounds of lox.  We still have about 140 pounds 
of propellant remaining after 100 seconds in the air.  For level 2, 
we load twice as much propellant.  The Isp is higher at the higher 
chamber pressures required for hover with the extra weight, so it 
should make 180 seconds, but we haven't demonstrated that yet.

Initial blowdown tank pressurization is 320 psi for level 1 and 400 
psi for level 2.  Each spherical tank is about 100 gallons, so the 
pressure drops by more than half over a fully loaded run just to 
expel the propellants.  The roll thrusters also draw from tank 
ullage, which causes additional pressure drop during flight.

Chamber pressure ranges from about 80 psi during hover when almost depleted, up to about 300 psi when climbing with a full propellant 
load.  Thrust is pretty close to 10 lb / chamber psi.

We don't have accurate Isp numbers for the current engine, but it 
probably varies from about 140 to 200 seconds across the chamber 
pressure range.  Note that the decrease at low pressures is due much 
more to low pressure drop across the injectors and resulting poorer 
mixing / atomization than due to nozzle effects.

John Carmack

_______________________________________________
aRocket@exrocketry.net
http://exrocketry.net/mailman/listinfo/arocket

I take this to mean that pictures relating to Pixel and Texel are released under GFDL.

— Preceding unsigned comment added by Wolfkeeper (talkcontribs) 05:48, 9 November 2006‎ (UTC)[reply]

[edit]

http://www.armadilloaerospace.com/n.x/Armadillo/Home/Gallery/Licensing —Preceding unsigned comment added by WarKosign (talkcontribs) 14:04, 29 November 2007 (UTC)[reply]

Armadillo update

[edit]

This just appeared on the Armadillo Aerospace website: Rocket Time flies, and so does Armadillo!, 2010-01-27. It is a summary of events at AA over the past year, from the company perspective -- sort of a year's worth of press releases rolled into one. N2e (talk) 11:24, 29 January 2010 (UTC)[reply]

Update "Staff and funding"

[edit]

Carmack released new staff and funding figures during his talk at QuakeCon 2010 on 12 August 2010. I've marked the section to be updated pending the incorporation of these new figures. --Credema (talk) 00:23, 13 August 2010 (UTC)[reply]

[edit]

Hello fellow Wikipedians,

I have just modified 16 external links on Armadillo Aerospace. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 03:10, 18 October 2016 (UTC)[reply]

[edit]

Hello fellow Wikipedians,

I have just modified 7 external links on Armadillo Aerospace. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 05:52, 9 July 2017 (UTC)[reply]

[edit]

Hello fellow Wikipedians,

I have just modified 3 external links on Armadillo Aerospace. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 00:33, 3 September 2017 (UTC)[reply]

[edit]

Hello fellow Wikipedians,

I have just modified one external link on Armadillo Aerospace. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 07:36, 8 November 2017 (UTC)[reply]

[edit]

it would be nice to find on the archived website a copy of the logo with the armadillo on the rocket and text underneath like seen on

or https://www.zaikei.co.jp/files/general/2013081219583921.jpg or https://mk0techwillsave6k4fj.kinstacdn.com/wp-content/uploads/2019/09/armadillo-logo.png which i am certain they have taken from the armadillo aerospace website and thus should be licensed CC-BY-SA.157.131.250.246 (talk) 20:16, 14 April 2021 (UTC)[reply]