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Author
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Topic: Apollo thermal blanket: What is H-film?
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Apolloman
Member Posts: 148
From: Ledignan, Gard (30), France
Registered: Mar 2009
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posted 08-07-2018 08:42 AM
   
For the purpose of rewriting my website (and in order to remove all faults), reading the Apollo Operations Handbook, Lunar Module, LM 10 and Subsequent, Volume I, I fell back on this info: - The entire ascent stage structure is enveloped with a thermal and micrometeoroid shield, which combines either a blanket of multiple layers of aluminized polyimide sheet (Kapton H-film)
- ...and a single layer of 0.0005-inch-thick H-film.
My question is apparently simple: H-Film and Kapton are they the same product, or not? |
Robert Pearlman
Editor Posts: 42981
From: Houston, TX
Registered: Nov 1999
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posted 08-07-2018 09:21 AM
The thermal blankets used on the Apollo spacecraft were made up of two different materials: - H-film, also referred to as Kapton or polyimide tape/foil, in different thicknesses, which appear amber/gold in color; and
- Aluminized mylar, which is lighter in mass and appear silver in color.
The command module was covered in layers of aluminized mylar and H-film sandwiched together. The lunar module only had H-film on the outside; the mylar was used as part of the insulation blankets. |
Apolloman
Member Posts: 148
From: Ledignan, Gard (30), France
Registered: Mar 2009
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posted 08-07-2018 09:48 AM
Thank you Robert.I will be able to make the necessary corrections. | |
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