https://peertube.dngr.us/videos/watch/6d3b907f-015b-4792-80bf-8b5bc145d66e Shot at the Naval Amphibious School in Coronado, California, this film shows the procedures used by SCUBA divers to exit and enter a submarine through the airlock. The film also features extremely rare footage of the special operations submarine USS Grayback (SSG-574 / LPSS-574) which carried miniature submarines (known as SDVs or Swimmer Delivery Vehicles) in its hangar that could be used by U.S. Navy SEALs for special operations. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=9evyUZqDUR8 Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Sat, 13 Jun 2026 05:30:44 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/6d3b907f-015b-4792-80bf-8b5bc145d66e All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.