All Questions
3
questions
5
votes
0
answers
100
views
Engine configuration for lander
Which is a more stable lander design:
1.Single central engine.
2.Multiple engines located near the corners
Following is the design for Tianwen-1, the Chinese Mars lander:
And following is the design ...
2
votes
1
answer
95
views
At what altitude(s) were the Viking BLDT rockets fired?
I'm trying to understand the details of the 1972 Viking BLDT test missions (in earth's atmosphere). I found this diagram in a book and the general description that the (four) BLDT (balloon drop) tests ...
6
votes
2
answers
292
views
Transfer people from orbiting spacecraft to surface of Mars
What are the proposed methods for transferring people from orbiting spacecraft to Mars surface specifically if multiple trips are required. Are there any that don't require a new heat shield for each ...
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