|
|
Question
#21045. I am not a geek
asks:
On the Apollo spacecrafts, what did the Service Module Reaction control subsystem quad do?
|
elburcher
 |
The system provides the small velocity changes required for service propulsion
subsystem propellant settling maneuvers (ullage). Only roll axis control is
provided during service propulsion engine thrusting. In addition, it provides
velocity changes for spacecraft separation from the third stage during high
altitude or translunar injection abort, for separation from the boost vehicle
after injection of the spacecraft into translunar trajectory, LM rendezvous in
lunar orbit, and for CM-SM separation.
 http://www.thebest.net/jduncan/asnr/p147-158.htm
Aug 01 02, 2:48 AM
|
Kainantu
|
It was used to carry out ullage requirements, perform stabilization maneuvers during flight and to separate service and command modules prior to reentry.
The unit had sixteen small rocket engines which were arranged in clusters of four, hence the name quad.
Propellants were nitrogen tetroxide and hydrazine 50/50
Each engine was 14 inches long,the largest diameter being six inches.
Each engine weighed 5 pounds and had a had a thrust of 100 lbs.
Aug 01 02, 3:09 AM
|
|
Fun Trivia | 
Quizzes | 
Games
| 
People | 
Services | 
Help | 
Me
Sign up for your FREE FunTrivia ID! Compete,
play free games, and meet people! Click here...
Have a question that you want answered? Are you able to answer questions from other FunTrivia guests? Then you have come to the right
place!