Community > Forum > National Aeronautics and Space Administration (NASA) > CEV Mockup Pictures

CEV Mockup Pictures

Posted by: Klaus Schmidt - Thu Nov 17, 2005 9:39 pm
Post new topic Reply to topic
 [ 64 posts ] 
Go to page Previous  1, 2, 3, 4, 5
CEV Mockup Pictures 
Author Message
Moon Mission Member
Moon Mission Member
User avatar
Joined: Mon Nov 01, 2004 6:15 pm
Posts: 1233
Location: London, England
Post    Posted on: Wed Sep 27, 2006 2:21 pm
Hello Ekkehard

I think the GO2/GCH4 listed is for the reaction control system on Orion which only has a thrust of 100lbf, this is not the methane engine that NASA were originally intending to use for the LSAM which was in the order of 20,000lbf thrust.

I think that they are using small methane engines for the RCS so that if in the future they develop a much bigger one for the LSAM or Mars assent vehicle then they will not have 2 different fuels.

_________________
A journey of a thousand miles begins with a single step.


Back to top
Profile WWW
Moderator
Moderator
avatar
Joined: Thu Jun 03, 2004 11:23 am
Posts: 3745
Location: Hamburg, Germany
Post    Posted on: Wed Sep 27, 2006 2:26 pm
Hello, Andy Hill,

I have similar thoughts about it. But am a right that up to now the RCSs used consumed N2O4/ADMH?

They are keeping GO2/GCH4 which could be a test in the earthian orbit. The first orbital flights might be used as the base to decide wether to keep the GO2/GCH4-concept for the LSAM or not...



Dipl.-Volkswirt (bdvb) Augustin (Political Economist)


Back to top
Profile
Space Station Commander
Space Station Commander
avatar
Joined: Wed Mar 09, 2005 1:25 am
Posts: 891
Post    Posted on: Fri Oct 06, 2006 10:06 pm
J-2 is good tech, and I look forward to seeing it fly again.


Back to top
Profile
Space Walker
Space Walker
User avatar
Joined: Wed Jul 28, 2004 8:30 am
Posts: 236
Location: Perth, Western Australia
Post    Posted on: Thu Oct 12, 2006 2:41 am
There seem to be a number of variants to the J-2 engine and NASA appears to need at least 2 of these. I believe that they've were originally trying to increase engine efficiency with design modifications but are now going with the existing engineering designs. The only mod's being for the differing environments the engine will need to operate in.

_________________
Beancounter from Downunder


Back to top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 64 posts ] 
 

Who is online 

Users browsing this forum: No registered users and 12 guests


© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use