jaffee wrote:

>>>>>
I don't want to diminish anything Rutan has done...I think it's awesome...but 
I doubt the feather rentry mode would work for an orbital craft.  SS1 
re-enters the atmosphere at Mach 3-4.  An orbital craft does so at Mach 25!
<<<<<

I have some doubts about that myself. 

As a big space buff (My main hobby is model rockets, including R/C Rocket 
boosted Gliders) I understood pretty easily how and why the "Feather" method 
worked for the vertical re-entry from just barely being in space. I don't get big 
warm fuzzies about it being able to work out that well from an orbital 
re-entry, with an almost (at first) parallel flight path, using that feather method 
in a "ballistic" re-entry. That is, for orbital re-entry purposes if has more 
in common with space capsules that arc deeper and deeper down into the 
atmosphere as they slow down than the space shuttle which has a lifting re-entry that 
holds it about as high up into the atmosphere as the velocity at the time 
allows it to (give or take some programmed roll banking for some "S" turns to 
maneuver it for the landing area ballpark, and bleed off energy).  

Anyway, if Rutan's feather method is not a suborbital one trick pony, and can 
work for orbital reentry too, I'd sure like to see some convincing info from 
an unbiased  source. I know there's some artwork showing a Space Ship One type 
design in orbit, but that artwork and several dollars or so will buy you one 
cup of frappacino at Starbucks. 

- George Gassawa
RCSE-List facilities provided by Model Airplane News.  Send "subscribe" and 
"unsubscribe" requests to [EMAIL PROTECTED]  Please note that subscribe and 
unsubscribe messages must be sent in text only format with MIME turned off.

Reply via email to