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  Mercury - Gemini - Apollo
  Apollo-Soyuz service module engine bell 'bubble'

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Author Topic:   Apollo-Soyuz service module engine bell 'bubble'
carmelo
Member

Posts: 1051
From: Messina, Sicilia, Italia
Registered: Jun 2004

posted 07-18-2015 12:06 PM     Click Here to See the Profile for carmelo   Click Here to Email carmelo     Edit/Delete Message   Reply w/Quote
What is this "bubble" on the bell of the engine on the Apollo-Soyuz Test Project's Apollo service module?

SpaceAholic
Member

Posts: 4494
From: Sierra Vista, Arizona
Registered: Nov 1999

posted 07-18-2015 07:35 PM     Click Here to See the Profile for SpaceAholic   Click Here to Email SpaceAholic     Edit/Delete Message   Reply w/Quote
De-lamination of the oxidation protection coating.

carmelo
Member

Posts: 1051
From: Messina, Sicilia, Italia
Registered: Jun 2004

posted 07-18-2015 07:48 PM     Click Here to See the Profile for carmelo   Click Here to Email carmelo     Edit/Delete Message   Reply w/Quote
This phenomenon happen in all service modules in Apollo and Skylab missions?

Headshot
Member

Posts: 891
From: Vancouver, WA, USA
Registered: Feb 2012

posted 07-18-2015 08:12 PM     Click Here to See the Profile for Headshot   Click Here to Email Headshot     Edit/Delete Message   Reply w/Quote
Are there photographs of similar conditions on the CSM engine bells from other Apollo missions?

SpaceAholic
Member

Posts: 4494
From: Sierra Vista, Arizona
Registered: Nov 1999

posted 07-18-2015 08:15 PM     Click Here to See the Profile for SpaceAholic   Click Here to Email SpaceAholic     Edit/Delete Message   Reply w/Quote
No idea, but not a big deal... the coating does its work (protecting the Colombian/Nobium nozzle) on the ground; not relevant once in flight.

LM-12
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Posts: 3324
From: Ontario, Canada
Registered: Oct 2010

posted 07-18-2015 08:18 PM     Click Here to See the Profile for LM-12     Edit/Delete Message   Reply w/Quote
It is discussed in this thread starting at 11-07-2011.

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