Archive image from page 105 of Development of a spherical acrylic. Development of a spherical acrylic plastic pressure hull for hydrospace application . developmentofsph00stac Year: 1970 Figure 67. Split hatch retaining ring for top and bottom polar closures of the 66-inch-diameter capsule: view from the interior of the capsule.

---

Size: 1578px × 1267px
Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1970, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, boston_library_consortium_member_libraries, drawing, historical, history, hulls_naval_architecture_, illustration, image, naval_civil_engineering_laboratory_port_hueneme_calif, page, picture, port_hueneme_calif_u_s_naval_civil_engineering_lab, print, reference, stachiw_jerry_d_1931_, submersibles, vintage