On Tue, 25 Feb 2003 04:54:50 -0600, John Carmack <[EMAIL PROTECTED]> wrote:
>We would just stick ground-penetrator spike on the base legs for the final >bit of landing attenuation.
This makes me cringe a bit, from a regulatory perspective. "You're going to poke holes in what you land on, *on purpose?*" That's an Ec of 1.0 for that point - you'll be absolutely required to prove you won't land in a populated area, and you'll have to run physical security in and around your LZ anyway.
But, as should have occurred to me days ago, you'll have to do that with the crushable nose anyway. How are you planning to handle getting approval for your landing site?
-R
The crushable nosecone is a final impact attenuator, just like any normal cargo drop uses. The rate of decent at landing is < 30 fps.
If you are coming down with rockets burning, adding some little pointy things beside the exhaust plumes really doesn't add anything to the danger...
You pretty much have to assume that if someone is right under a rocket when it reaches zero altitude, that they die, no matter what the landing method is. A horizontal lander probably even has a disadvantage there -- it draws a line instead of a point.
John Carmack
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