FUEL PUMP FAILURES  TRANSFER •PUMP  WITH RELIEF VALVE  In case of failure  of one engine  driven pump open  cross connecting  valve.  In case of fniTt_,...,  failure of both  \:  1  !  ’L-.+--.1  7  EMERGE’KY  PUMP  6 STRAINER UN IT  STI\AINER DRAIN.  tf  BARRETT  FILLING CONNECTION.  pumps set as indi- ~  c a ted in diagram  ~-----+-- ......... _" 0 _ ••  _._  ... _.  ~H<J~~  ~D..--+---+----1  and use either  ~  emergency pump.  ~  r -- ~--. ~  K-11 AND FUTURE  i : ,u:~  ’j  --~o-·  8  6  ENG INE DRIVEN PUMP  WITH  BY-PASS  & RELIEF  VALVES.  PORT  CMB.  --- -’  \  STRAINER DRAIN.  EMERGENCY  PUMP  6  SHAINER UNll_  SCHEMf-Tk:  DIAGRAttF!JL  SYSTEM : ·~-AIRSHIP  TAKE-OFF  I’  TRANSFER PUMP  WITH RELIEF VALVE.  Feed engines from  both service tanks  Open cross feeding  valve.  ENGINE DRIVEN PUMP  WITH  BY-PASS  & RELIEF  VALVES.  POlT CARB.  -- ,  K-11 AND FUTURE  EMERGENCY  PUMP  & STRAINER UN IT  ST"-AINER DRAIN.  tf  BARRETT  FilLING CONNECTION.  DRAIN.  EMERGENCY  PUMP  . 6 STRAINER UNIT  S(HEMAT!C  DIAGRAM-Fl,!L  SYSTEM - ·~·AIRSHIP  Fig. XXIX-c  Fig. XXIX-d  -78-