▁pressure ▁may ▁be ▁life - th re aten ing . ▁Since ▁the ▁creation ▁of ▁the ▁Deep ▁Sub mer gence ▁Res cue ▁Ve h icles ▁Myst ic ▁and ▁A val on , ▁the ▁McC ann ▁Res cue ▁Chamber ▁is ▁rarely ▁used , ▁but ▁is ▁part ▁of ▁the ▁Sub marine ▁Res cue ▁Chamber ▁Fly away ▁System ▁( SR CF S ) ▁which ▁is ▁capable ▁of ▁world wide ▁sub marine ▁rescue ▁miss ions . ▁ ▁Once ▁launched , ▁the ▁SR CF S ▁is ▁able ▁to ▁operate ▁around ▁the ▁clock . ▁ ▁See ▁also ▁ ▁References ▁Ma as , ▁Peter . ▁The ▁Res c uer . ▁London : ▁Collins , ▁ 1 9 6 8 ▁▁ ▁( T ele vision ▁movie . ▁The ▁film ▁does ▁not ▁acknow ledge ▁any ▁design ▁f law ▁and ▁claims ▁the ▁cause ▁is ▁unknown .) ▁ ▁USS ▁S qual us , ▁Sh ip ▁Source ▁Files , ▁Sh ips ▁History ▁Branch , ▁Naval ▁Historical ▁Center ▁Bar rows , ▁Nathan iel ▁A . ▁B low ▁All ▁Ball ast ! ▁The ▁Story ▁of ▁the ▁S qual us . ▁New ▁York : ▁D odd , ▁M ead ▁& ▁Co , ▁ 1 9 4 0 . ▁ ▁Department ' s ▁Report ▁on ▁" S qual us " ▁Dis aster . ▁Washington : ▁U . S . ▁G . P . O ., ▁ 1 9 3 9 . ▁ ▁Gray , ▁Ed w yn . ▁Dis aster s ▁of ▁the ▁Deep : ▁A ▁Com pre h ensive ▁Survey ▁of ▁Sub marine ▁Acc idents ▁and ▁Dis aster s