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PROPULSION AND VE MCLE MONTWLY PROGRESS REPORT For Period March 1, 1967, Through March 3 1, 1967 FOR INTERNAL USE ONLY GEORGE C. #ff#TsV!IfE. ALABAMA NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MSFC - Fmm 1262 (September 1961) PROPULSION AND VEHICLE ENGINEERING LABORATORY MONTHLY PROGRESS REPORT (March 1, 1967, Through March 31, 1967) Materials Division Vehicle Systems Division Advanced Studies Office Propulsion Division Structures Division GEORGE C. MARSHALL SPACE FLIGHT CENTER TABLE OF CONTENTS Page MATERIALS DIVISION . 1 Saturn IB . 1 I. S-IB Stage. 1 A. Evaluation of Aging Treatment for 7075-T6 Aluminum Components in Reducing Susceptibility to Stress Corrosion ..................... 1 B. Corrosion Effects of MIL-H-5606 Hydraulic Oil. 1 11. H-1 Engine . 1 Investigation of Cause of Leakage in an H- 1 Engine Turbine Manifold . 1 Saturn V. .. 2 I. 5-IC Stage . 2 A. Investigation of the Failure of a Component of an S-IC Hold-down Arm . 2 B. Evaluation of Commercial Adhesives . 2 1. Investigation of Polyurethane Adhesives ................. 2 a. Study of Environmental Effects on Strength of Polyurethane Adhesives . 2 b. Reevaluation ofNarmco7343/ 7 139 Cure Cycle. 2 c. Evaluation of Curalon- L as C 1.1rative for DuPonts ' Adiprene L-100 and L-315. 3 2. Investigation of Surface Preparation for Bonding Stainless Steel Adherends 3 3. Investigation of Semi-organic Structural Adhesives. 3 C. Development and Evaluation of Potting Compounds and Conformal Coatings. 4 1. Development of Epoxy-Siloxane Embedment Materials . 4 2. Implementation of Molc:ct~lar Distillation Apparatils . 5 3. Development of Conformal Coating Materials . 5 TAB LE OF CONTENTS {Continued) Page D, Nondestructive Examination of Fuel Valve Castings. ................. 5 11. Contract Research .................. 6 A. Polymer Research, Development, and Testing. ................... b B. Development of Cryogenic and High TemperatureInsulationMaterial. ..... 6 C. Analvtical Methods Development ...... h D. Assessment and Evaluation of Blast Hazards .................. 6 E, Nondestructive Testing Techniques .... 6 III. 5-11 Ttage ........................ h A. Investigation of 5-11-F/D Ttage LOX Vent Line Failure. ............... k B. Evaluation of Fasteners. ........... 7 C. 5-11 Stage Cryogenic Insulation. ...... 7 IV. 5-IVB...... ..................... 7 A. Investigation of Fasteners .......... 7 B. Developmental Welding ............ 8 C. Study of Materials Problems Attendant to the S-IVB Workshop Program. ..... 8 1. Study of the Effects of Hypervelocity Particle Penetration of Internal Tank Insulation .............. 8 Z. Studv of Permeation-Diffusion of Hydrogen into 3-D Insulation ..... 8 3. Investigation of the Effect of Helium Diffllsed into the Insulation on InsulationConductivity.. ....... 9 4. Study of Flammability of Materials . 9 5. Investigation of Thermal Control Coatings ior Use in the 5-IVR Workshop .................. 10 D. '5-IVR Stage, Project Mana~emcril.. Materials ..................... If1 1, Fl~ltterFit ................. I I 2. Radiographic Inspection of ~cirls. 1 1 TABLE OF CONTENTS (Continued) Page Y . 5-2 Engine ....................... 12 A . Investigation of Cracking in a J-2 Engine Turbine Wheel Assembly ...... 12 B . J-2 Engine Project Management. Materials ..................... 12 VI . F-I Engine ....................... 12 A . Study of Effect of Sea Water Immersion on F-1 Engines ................. 12 B . Study of F- 1 Engine Primary LOX Seal Mating Ring................. 12 I . Instrument Unit .................... 13 A . General Corrosion Studies .......... 13 B . Study of Possible Gas Evolution in the Environmental Control System ..... 13 C . Instrument Unit. Project Management. Materials ..................... 13 VII . Apollo Telescope Mount (ATM) .......... 13 A . Investigation of Contamination and Contamination Sources ............ 13 I3 . Investigation of ATM Bearing Lubrication 14 IX . NuclearGroundTestModule ........... 15 Advanced Research and ~echnology............. 16 I . Contract Research .................. 16 A . Polymer Development and Characterization.............. lh B. Adhesive Development ............ 10 C . Developmental Welding ............ 10 D . Alloy Development ............... 16 E . Physical and Mechanical Metallurgy ... 17 F . Composite Material Development and Testing .................... 17 G . Lubricants and Lubricity ........... 17 H. Corrosion in Aluminum and Steel ..... 17 I . Explosion Hazards and Sensitivity ofFv.els ...................... 17 J . Synergistic Effects of Nuclear Radiation. Vacuum. and Temperature on Materials . 17 K . Instrument Development ........... 17 TABLE OF CONTENTS (Continueci) Page 11. General--In-Hous e . , . 17 A. Development of High Temperature Resistant Polymers . - . , 17 R. Development and Characterization of Phosphonitrilic Polymers. 18 C. Development and Evaluation of Materials far Electrical Contacts in Vacuum. + . 19 D. Investiqation of Thin Films for Electronic Components . 19 E. Lubricant Development and Evaluation. 20 F. DeveIopment and Evaluation of Metallic Components. , . , . 20 1. Development of a Technique for Wire Reinforcing Magnesium by Vacuum Infiltration, . , , . , . 21) 2, SolidStateRonding ofRoron., . , . 2 1 3. Development of Tubular Trans ition Joints . 2 1 G. Investiqation nf Stress Corrosion Characteristics of Various Allovs . 2 1 H. Developmental Welding . , , . , , . 24 I. Investigation of Dielectric Properties of Materials. 24 J. Development of Nondestructive Techniques for Evaluating Materials and Components . 24 K. Investigation of Thermoelectric MateriaIs . 25 L. Development and Evaluation of Lightweight Ceramic Foams. 26 M. Documentation Review . 27 N. LiteratureTurvey ..,..,.. .., .., 27 Monthly Production Report . 28 I. Radiography . Zfi IT. Photography . 28 TTI. MeEallurgical and Metallo~raphirTrst.irhx . LK TV. Spectrographic Analyses . , . LC! V. Infrared Analyses . 2') TABLE OF CONTENTS (Continued) Page VI . ChernicalAnalyses ................... 29 VII . PhysicoChemicalP.nalyses ............. 29 VIII . Rubber and Plastics .................. 36 IX . Electroplating and Surface Treatment ...... 30 X . Development Shop Production ............ 30 A . Direct Labor Manhours ............. 30 B . Nonroutine Productive Effort ......... 30 1 . Six-Inch UV Camera Assembly ..... 30 2 . ~ackl~a~loadModule ........... 30 3 . Accumulator Assembly .......... 30 4. x-~aylAstronomy Assembly ...... 31 5 . Telescoping Skirt Extension. J-2 Engine .................. 31 6 . LHe.LHZ.Crystat .............. 31 7 . S-I1 Pre-Valves ............... 31 8 . TestFixture-Experiment #2...... 31 XI . Miscellaneous ...................... 31 XI1. Publications ....................... 31 2 . VEHICLE SYSTEMS DIVISION .................... 33 Saturn XB ............................... 33 T . S-IVB Stage. ....................... 33 A . Cold Helium TphereReplacement ...... 33 B . Propellant Dispersion System (PDS) .... 33 II . General .......................... 33 A . Weight Status Reports .............. 33 B . Predicted Mass Characteristics ....... 34 5aturnV ................................ 34 I . S-ICStage ......................... 34 A . Umbilicals ..................... 34 B . 5-IC Flush and Purge Servicer ........ 34 C . Acceptance Tests ................. 35 D . Integ~ationTestRequirements and Specifications ................... 15 I1 . S-I1 %age ......................... 35 A . Documentation Revicw .............. 35 B . Isolator Mount Testing Tor the Safety and arm in^ (SkA) Device ....... ?;f) C . LH2Exchanger .................. 30 vii TABLE OF CONTENTS (Continued) Page D . Pneumatic Consoles ............... 36 E . Umbilicals ..................... 36 F . Acceptance Tests ................ 37 111 . S-IVB Stage ....................... 37 A . Maximum Heating Conditions ......... 37 B . Umbilicals ..................... 37 C . Documentation .................. 37 D . Qualification and Acceptance Test Program 37 IV . Instrument Unit (IU).................. 38 Reliability Analysis Model (RAM) ...... 38 V . General .......................... 39 A . Test Specifications and Criteria ....... 39 B . SaturnVFlightMissionRuLes ........ 39 C . Damping, Retract, and Reconnect System (DRRS) .................. 39 D . Damper System .................. 39 E . Weight Status Report .............. 40 Advanced Technology ....................... 40 I . Systems Design ..................... 40 A . S-IVB Orbital Works hop ............ 40 B . Cluster ....................... 41 C . Nuclear GrotlndTestModule (NGTM).... 42 D . Project Thermo .................. 42 E . Pyrotechnic Window Experiment ....... 42 F . Apollo Applications Program (AAP) Payload ....................... 43 I1 . SystemsRequirements ................ 43 A . Design Criteria and Reference Data Handbooks .................. 43 B . OrbitalWorkshop ................. 43 C . Electromagnetic Radiation Experiment (EMR) ................ 47 D . Voyager and Voyager Shroud ......... 43 3 . ADVANCED STUDIES OFFICE .................... 45 Satt~rnV ................................ 45 Vrlyagcr Prugram....................... 45 A . Spacecraft. ..................... 45 1. 197 3 Mission Descriptiur~ Document (Draft) .............. 45 viii TABLE OF CONTENTS (Continued) Page 2. Manpower ................... 3. Inter-Center Working Group and Subpanels................. 4 . Configuration Control ........... 5 . Advanced Studies Office Design ..... 6 . Voyager Separation study......... 7 . Propulsion Analysis ............ B . Shroud Clesign ................... C . Science Packaging