To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.off-topic.geekOpen lugnet.off-topic.geek in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Off-Topic / Geek / 778
777  |  779
Subject: 
Re: Transit Time to Mars
Newsgroups: 
lugnet.off-topic.geek
Date: 
Wed, 15 Dec 1999 22:23:47 GMT
Viewed: 
199 times
  
In lugnet.off-topic.geek, Terry King writes:
The 1G for days is what's hard to believe, given current technology....

Hmm, what about small unmanned craft for overnight package delivery?  (FedEx
in Space ;-)  How much fuel is in one of those space shuttle booster rockets
and how much of that is wasted getting to escape velocity?  I bet if a small
rocket were launched from a space station with beaucoup solid fuel engines,
it could easily burn for half a day and maybe even at 10G with a light
payload.

The other neat thing about unmanned craft is that as the fuel is burned up,
the ship will accelerate more and more easier since its mass is less and
less.

--Todd



Message has 2 Replies:
  Re: Transit Time to Mars
 
(...) Solid fuel rockets are essentially big fireworks: ya light 'em and they burn until nothing is left. They are great bang for your buck, but they don't last long. And in your scenario, you still have to get the boosters up to the space station. (...) (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)
  Re: Transit Time to Mars
 
(...) Don't forget that the space shuttle accelerates with only a few g relative to earth, so that's (a few + 1) when applied in space. And as someone mentioned, unless you have manufacturing in space, or very cheap earth -> LEO methods (which is (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)

Message is in Reply To:
  Re: Transit Time to Mars
 
The 1G for days is what's hard to believe, given current technology.... (25 years ago, 15-Dec-99, to lugnet.off-topic.geek)

119 Messages in This Thread:
(Inline display suppressed due to large size. Click Dots below to view.)
Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR