Space News
space history and artifacts articles

Messages
space history discussion forums

Sightings
worldwide astronaut appearances

Resources
selected space history documents

Websites
related space history websites

  collectSPACE: Messages
  Mercury - Gemini - Apollo
  Apollo 13 S-II inboard (center) engine shut down

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   Apollo 13 S-II inboard (center) engine shut down
Fra Mauro
Member

Posts: 1169
From: Bethpage, N.Y.
Registered: Jul 2002

posted 12-30-2014 09:32 AM     Click Here to See the Profile for Fra Mauro   Click Here to Email Fra Mauro     Edit/Delete Message   Reply w/Quote
How close was the mission to being aborted during the launch phase as a result of the second stage center engine shutdown?

Would the early shutdown of the engine increase the g forces or the pogo oscillations on the crew to a dangerous extent? Most accounts play down this part of the mission as a minor hiccup.

Jim Behling
Member

Posts: 751
From: Cape Canaveral, FL
Registered: Mar 2010

posted 12-30-2014 02:41 PM     Click Here to See the Profile for Jim Behling   Click Here to Email Jim Behling     Edit/Delete Message   Reply w/Quote
It wasn't close to an abort and the g loads were reduced by 20%. It would negate any pogo effects since the thrust was reduced. Margins were reduced due to the lost of the engine but that is what happens when you lose redundant systems.

Fra Mauro
Member

Posts: 1169
From: Bethpage, N.Y.
Registered: Jul 2002

posted 12-31-2014 03:21 PM     Click Here to See the Profile for Fra Mauro   Click Here to Email Fra Mauro     Edit/Delete Message   Reply w/Quote
That's what I thought but John Young made it sound more dramatic in his book.

Tom
Member

Posts: 1373
From: New York
Registered: Nov 2000

posted 01-01-2015 08:06 AM     Click Here to See the Profile for Tom   Click Here to Email Tom     Edit/Delete Message   Reply w/Quote
If it wasn't for the "major hiccup" two days later, the second stage issue may have received more attention.

Paul78zephyr
Member

Posts: 409
From: Hudson, MA
Registered: Jul 2005

posted 01-04-2015 09:09 AM     Click Here to See the Profile for Paul78zephyr     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Fra Mauro:
That's what I thought but John Young made it sound more dramatic in his book.
It's interesting that Young discusses it in his book because Jim Lovell in 'Lost Moon' doesn't mention it at all. It was in the movie 'Apollo 13' but not in the book (at least the original 1994 edition). I've always thought it very odd that that 'glitch' was left out of 'Lost Moon'.

All times are CT (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | The Source for Space History & Artifacts

Copyright 1999-2015 collectSPACE.com All rights reserved.


Ultimate Bulletin Board 5.47a





advertisement