[ERPS] Re: Book, Single Stage to Orbit

2004-03-12 Thread Ian Woollard
Andrew Case wrote: The original Kistler proposal (before the improvements) was a quite nice TSTO with a dumb Launch Assist Platform that lifted the upper stage clear of the atmosphere straight up. The upper stage separated and the LAP dropped straight back down to the launch site. Yes. You'll

Re: [ERPS] Re: Book, Single Stage to Orbit

2004-03-12 Thread Henry Spencer
On Fri, 12 Mar 2004, Ian Woollard wrote: However, compared to a similar construction TSTO I found my payload dropped precipitously, by 75%. That's *really* bad. No; why should it be? They're different classes of vehicles. The original Kistler scheme, with the LAP, is *not* a TSTO -- it's an

[ERPS] Re: Book, Single Stage to Orbit

2004-03-12 Thread Ian Woollard
Henry Spencer wrote: On Fri, 12 Mar 2004, Ian Woollard wrote: However, compared to a similar construction TSTO I found my payload dropped precipitously, by 75%. That's *really* bad. No; why should it be? They're different classes of vehicles. They're both strictly TSTO designs, and should be

Re: [ERPS] Re: Book, Single Stage to Orbit

2004-03-12 Thread John Carmack
At 08:32 PM 3/12/2004 +, Ian wrote: Henry Spencer wrote: The original Kistler scheme, with the LAP, is *not* a TSTO -- it's an assisted SSTO. I don't really see that. As soon as you have that staging event, it's clearly not SSTO. Or if you look at it as a near SSTO, SSTOs are relatively