PROGRAM 706 TASK 4. MPU BLADDER DEVELOPMENT.
Quarterly progress rept. no. 2, 1 Apr-30 June 63.
RADIO CORP OF AMERICA BURLINGTON MASS AEROSPACE SYSTEMS DIV
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Efort was directed to develop a non-metallic positive expulsion bladder to be used in space vehicle propulsion systems, utilizing N2O4 and a 5050 blend of UDMH and N2O4 as the propellants. Research and tests on materials for non-metallic positive expulsion bladders have resulted in the selection of a bag-in-bag Teflon film combination in each bag, for fabrication of a set of 37-in. diameter bladders to be subjected to a series of expulsiontemperature tests. Full scale bladder tests have shown that both a bagin-bag single layer Teflon film combination and a single bag-in-bag Teflon film combination fail during propellant expulsion tests below 70 F.