Stock Photo - Jul. 07, 1965 - Submarine Escape Trials From Record Depths: Pictures from the Mediterranean during the Submarine Escape Trials from depths as great as 500 feet by a Royal Navy volunteer escape team from H.M.S. Dolphine, the Gosport submarine base. Using new techniques the escapers, dressed in suits incorporating a cotton fabric hood with plastic face piece, breathed trapped air during the ascent to the surface after being released from a one-man orpheus. Important result of this escape method is that pressurisation is achieved rapidly and the escaper is subjected to it for an absolute minimum period before leaving the submarine. Inside the cylinder he breathes air supplied automatically at the correct rate before making his escape. The trials took place off Malta. Photo Shows: The moment of success as an escaper breaks the surface in the mediterranean after his release from the escape chamber in H.M.S. Orpheus. (Credit Image: © Keystone Press Agency/Keystone USA via ZUMAPRESS.com)