PPO foam - Liquid hydrogen insulationAn extensive fabrication and test program is described which has demonstrated the integrity of PPO (polyphenylene oxide) foam as an internal insulation. PPO is shown to be capable of withstanding multiple reuses on such cryogenic-fueled launch vehicles as the Space Shuttle. The major advantages of this internal insulation is the absence of a pressure load on the insulation, reduced handling damage, and minimization of cyclic thermal stresses by a 'warm' bond line.
Document ID
19750063020
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Yates, G. B. (General Dynamics Corp. Convair Aerospace Div., San Diego, Calif., United States)