the nightly hypnophone sessions flooded ramsey 's mind with the new knowledge : pressure hull , resonating hull , tank hull ... pressure compensating system ... header box ... reactor controls ... search and sounding ... diving plane controls ... valve controls ... pile check-off ... sonoran automatic-navigation board ... atmosphere controls ... automatic timelog , mark dc ... external and internal tv eyes , specifications for servicing of ... gyro controls ... two controls ... plastic barge , oil , components of ... needle torpedoes , external racking system ... torpedo homing systems ... scrambler systems ... systems ... systems ... systems ...