Subj : Re: Kerosene Engines
To   : Andrey Kanunnikov
From : Charles Radley
Date : Sun Jul 16 2000 03:53 am

-=> Andrey Kanunnikov wrote to Charles Radley <=-

 AK> Hello, Charles!

 AK> Friday July 14 2000 08:19, Charles Radley wrote to Kirill Artamonov:

 CR>  They do not publish much information because it is controlled
 CR> technology, and they are not commercially marketing these engines.
 AK> Is it really so powerfull and perpective technology? As it


You are probably correct, but for the last several years the American ITAR
regulations have been stregnthened. This is mostly  because of bickering
between the two big American political parties, not because of any real
threat.


But it is making things difficult for the commercial international 
space business.


 AK> You know, i was always interested in the navigation systems that are
 AK> been using on the space shuttles, suttelites and etc. For
 AK> example the method of control of the ship when it moves
 AK> across the space to MARS (i don't know how to write the
 AK> name "iCEa" of that planet in english ;-) is a riddle for
 AK> me still.



 The planet Mars.   The word Mars comes form the ancient Latin language,
 it is older than the English language.

 A lot of information about the Mars spacecraft is
 published on the JPL web site.


 For autonomous attitude control the interplanetary probes use a
 combination of gyros, star sensors and sun sensors.


 Sensors of the star  Canopus are popular, because  Canopus is a very
 bright star at 90 degress to the ecliptic (solar system plane).


 For trajectory control, it is tracked by radar transponder, mid-course
 correction manouvers are calculated by specialists at a control center,
 and rocket burns are executed on control center command.



 AK>                              I will glad to see you in the future.
 AK> Andrey.



 Me too.



.... Assistant Moderator, SPACE & the 8 "SB-" prefixed echoes

--- Maximus 3.01
 * Origin: Sirius BBS * Portland, OR (503) 291-1908 * V.34 (1:105/24)

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