| Organization | Location | Responsibility | 
      
         | 
          | 
      
         | 
               Bendix Aerospace Systems
               Div.
               
                
               
                
               
                
               
                
             | 
               Ann Arbor, Mich.
               
                
               
                
              
          | 
               Bendix was responsible to
               Martin Marietta for two of the entry science
               instruments-the upper atmospheric mass spectrometer
               and the retarding potential analyzer-and one Martian
               surface instrument-the seismometer. Design,
               fabrication, assembly, and testing were conducted at
               the Ann Arbor facilities.
             | 
      
         | Celesco Industries 
                
             | Costa Mesa, Calif. 
                
             | 
               Celesco Industries built the
               surface-sampler arm, housing, and drive mechanism that
               picked up the surface samples and delivered them to
               the lander instruments. Celesco acted as a
               subcontractor to Martin Marietta.
             | 
      
         | 
               Goodyear Aerospace
               Corporation
               
                
               
                
               
                
             | 
               Akron, Ohio
               
                
               
                
               
                
             | 
               Goodyear was responsible to
               Martin Marietta for the decelerator system used on the
               lander. Goodyear personnel designed, built, and tested
               the decelerator system and managed subtler. suppliers
               and subcontractors
             | 
      
         | 
               Honeywell Aerospace
               Division
              
          | 
               St. Petersburg, Fla.
              
          | 
               Under contract to Martin
               Marietta Honeywell designed, manufactured, and tested
               the lander guidance, control, and sequencing computer
               and data storage memory.
             | 
      
         | 
               Itek Corporation, 
               
               Optical Systems
               Division
               
                
               
                
               
                
               
                
               
                
             | 
               Lexington, Mass.
               
                
               
                
               
                
               
                
               
                
               
                
             | 
               Itek was responsible to Martin
               Marietta for all aspects of the lander camera system.
               Itek produced and tested the cameras and their
               supporting Earth-based ground reconstruction sets.
               Itek also provided the computer software necessary to
               operate and control the cameras and to drive the
               ground reconstruction equipment in reconstructing the
               photographs.
             | 
      
         | Jet Propulsion Laboratory
              
          | Pasadena, Calif.  
          | 
               JPL was responsible to NASA
               for the orbiter and the mission control center (Space
               Flight operations Facility). JPL also operated the
               Deep Space Network.
             | 
      
         | 
               Litton Industries,
               
               Guidance and Control
               
               Systems Division
             | Woodland Hills. Calif.  
          | 
               Litton contracted with NASA
               for the production and integration of the design
               technology used in the gas chromatograph-mass
               spectrometer.
             | 
      
         | Martin Marietta Aerospace
                      
          | Denver, Colo.          
          | 
               Martin Marietta was
               responsible to NASA's Langley Research Center for the
               overall integration of the Viking project and was
               prime contractor for the lander and its subsystems
               (designing, testing, and building the lander and
               managing all lander Subcontractors). Martin Marietta
               also designed and built the photo sensor array for the
               Viking cameras, the temperature transducers, and the
               x-ray fluorescence spectrometer. In addition, Martin
               Marietta built the Titan IIIE launch vehicles used in
               the project.
             | 
      
         | 
               RCA Astro-Electronics
               Division
               
                
               
                
               
                
             | Princeton, N.J.    
          | 
               As a subcontractor to Martin
               Marietta, RCA designed, built, and tested the lander
               communications subsystem, including an
               ultrahigh-frequency radio transmitter, an antenna for
               beaming signals to the orbiter, an S-band antenna for
               broadcasting directly to Earth; and an S-band low-gain
               unit to receive direct commands from Earth.
             | 
      
         | Rocket Research Corporation
              
          | Redmond, Wash.  
          | 
               Rocket Research, under
               contract to Martin Marietta, was responsible for
               developing and manufacturing the throttleable,
               monopropellant -hydrazine, landing engines and the
               control and deorbit engines.
             | 
      
         | Sheldahl, Inc.    
          | Northfield, Minn.    
          | 
               For Martin Marietta, Sheldahl
               designed and built four load-carrying high-altitude
               balloons, which were used for the balloon
               launch-decelerator test program for the lander, and
               the disk-gap-band parachute used as part of the
               decelerator system. Sheldahl also fabricated the
               bioshields used to encapsulate the lander and the
               lander leg covers.
             | 
      
         | 
               Space and Missile
               
               Systems Organization
               
               (SAMSO)
               
                
             | Los Angeles, Calif.    
          | 
               SAMSO was the U.S. government
               agency responsible for developing the Titan III launch
               vehicle. The SAMSO 65S5 Aerospace Test Wing at Cape
               Canaveral Air Force Station managed the Titan launch
               facility and supported NASA in launching the Titan III
               Centaur
             | 
      
         | Teledyne Ryan  
          | San Diego, Calif.  
          | 
               Teledyne Ryan subcontracted
               with Martin Marietta as designer, tester, and builder
               of the radar altimeter and the terminal-descent and
               landing radar used on the lander.
             | 
      
         | TRW Inc.
          | Redondo Beach, Calif.
          | 
               As a subcontractor to Martin
               Marietta, TRW built the biology and meteorology
               instruments carried on the lander.
             |