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Archive image from page 26 of Development of a spherical acrylic. Development of a spherical acrylic plastic pressure hull for hydrospace application . developmentofsph00stac Year: 1970 clearance between floor and hull to allow free con- traction of hull under pressure bolts for securing chairs to floor foamed-in-place plastic filler elastomeric spacers to allow free contraction of the hull under pressure upper cage ring floor rigidly attached to the cage frame assembled from three meridional ribs
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Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
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