Physics
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14...35l&link_type=abstract
Advances in Space Research, Volume 14, Issue 2, p. 35-38.
Physics
Scientific paper
This paper summarizes the information gained during Winzen's program to develop a practical long duration superpressure balloon capable of carrying a 22.7 kilogram payload at 36.6 kilometers for a over a year. The material used for this Superpressure Stratospheric Vehicle (SSV) is biaxially oriented nylon-6. An allowable design stress as a function of temperature has been developed. A cold temperature creep model for the nylon-6 has been developed. Permeability of nylon-6 to helium has been measured and the results indicate that this material is an excellent gas barrier, especially at cold temperatures. The transmissivity and reflectivity of this biaxially oriented nylon-6 has also been measured. A balloon prototype made with a pressure sensitive adhesive tape has been fabricated and successfully flown.
Lew T.
Rai Renuka
Seely Loren
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