Community > Forum > Official Micro-Space Forum > Lunar Landers

Lunar Landers

Posted by: rpspeck - Fri Oct 27, 2006 8:23 pm
Post new topic Reply to topic
 [ 36 posts ] 
Lunar Landers 
Author Message
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post Progress   Posted on: Fri Apr 04, 2008 11:32 pm
Progress at Micro-Space continues. About 7 of the 14 Liquid Fuel Rocket Motors in our new batch are ready to run. Work continues on the others.

We are modifying our motor test system to run these higher thrust, long burn duration motors. In this process we are actually integrating much of the flight hardware and plumbing into the test system, so that it will become more of a “Hot Fire Testâ€


Back to top
Profile WWW
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post New Rocket Motors Running VERY Well   Posted on: Thu Apr 24, 2008 2:15 am
Micro-Space accomplished its first “Hot Fire Testâ€


Back to top
Profile WWW
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post    Posted on: Fri Apr 25, 2008 4:25 am
One short pause in the program: I am going to be in India for two weeks on a missions trip. I am assisting in organizing and establishing schools in rural villages in India (working with an organization I have long supported there, IERF). Some work on the video and still images is being done in the meantime, and we will be getting this online soon after I return.


Back to top
Profile WWW
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post Google Lunar Communications Summary   Posted on: Thu Jun 12, 2008 9:14 pm
We have been working on the communications problem since we received the SETI Institute information at the February 21, 2008 “Kick Offâ€


Back to top
Profile WWW
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post Vacuum Environment Testing Underway   Posted on: Tue Jun 24, 2008 11:55 pm
Micro-Space has begun Vacuum Environment testing of our operational communications modules. This will be a long process, for - although we have done production and research high vacuum work for decades (including a variety of thin film coatings and multilayer structures) – we have never done vacuum environment testing for spacecraft systems and will have to add a number of elements to our vacuum chambers.

Beyond the obvious concern of venting of batteries (and liquid electrolytic capacitors, if they were used), plus vaporization of necessary lubricants in mechanical systems, the primary vacuum effect on electronics is to expand the thermal control problems. With the loss of air convection for heat distribution at even moderate vacuum, temperature gradients become more severe. With the loss of all gas thermal conductivity in high vacuum (10 exp - 4 Torr) only radiation and conduction in solids remain to remove heat from hot components.

Heat sinks of course need to be redefined, since they are not cooled by air, and if not positioned to radiate heat directly into space, they accomplish little or nothing. The classic black heat sink is also a mistake, since white paint radiates heat in the infrared as well as any other color, but the white surface absorbs less solar radiation if sunlight can't be completely blocked from the radiator structure.

These problems are reduced with today's low power electronic components. Legacy space systems have a bigger problem since the new, low power products are not “Space Qualifiedâ€


Back to top
Profile WWW
Space Station Member
Space Station Member
avatar
Joined: Thu Jan 27, 2005 12:34 am
Posts: 450
Post Low Cost Launch?   Posted on: Sat Aug 02, 2008 12:52 am
Announced progress with the ESA “Vegaâ€


Back to top
Profile WWW
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 36 posts ] 
Moderator: rpspeck
 

Who is online 

Users browsing this forum: No registered users and 6 guests


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