This program in both it's versions is menat to be modified but it isn't document.  so cantact me roger@halfwahtoanywhere.com or roger@xanadu.net, I'll be glad to help

It should compile with gcc anywhere with only minor changes at most.
the file newerasa.tar.gz contains both thid directory and the 2stage version.

Note that you may consider the assumptions about the rocket unreasonable, they may be.        So feel free to cange them, to model whatever you wish.  I look forward on any results you care to share with me.


roger@halfwaytoanywhere.com