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RESTRAINT OF LEATHER SEAT CUSHIONS DURING APPENDIX F SEAT CUSHION (FIRE BLOCK) TESTING

RESTRAINT OF LEATHER SEAT CUSHIONS DURING APPENDIX F SEAT CUSHION (FIRE BLOCK) TESTING. COLOGNE UPDATE. MATERIALS EVOLUTION. ORIGINALLY – FIRE BLOCKED CUSHIONS FIRE HARD FOAM VARIABILITY OF RESULTS WITH LEATHER FULL CABIN USE OF LEATHER IN TRANSPORT TYPE AIRCRAFT

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RESTRAINT OF LEATHER SEAT CUSHIONS DURING APPENDIX F SEAT CUSHION (FIRE BLOCK) TESTING

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  1. RESTRAINT OF LEATHER SEAT CUSHIONS DURING APPENDIX F SEAT CUSHION (FIRE BLOCK) TESTING COLOGNE UPDATE

  2. MATERIALS EVOLUTION • ORIGINALLY – FIRE BLOCKED CUSHIONS • FIRE HARD FOAM • VARIABILITY OF RESULTS WITH LEATHER • FULL CABIN USE OF LEATHER IN TRANSPORT TYPE AIRCRAFT • “LEEWAY” IN RULES AND GUIDANCE ON FASTENING – EFFECT ON PASS OR FAIL

  3. “GOOD” LEATHER

  4. “BAD” LEATHER

  5. TEST FASTENING METHODS

  6. TEST FASTENING METHODS

  7. TEST FASTENING METHODS

  8. OBJECTIVES • REVIEW OF AVAILABLE INFORMATION ON THE SUBJECT (DONE) • SURVEY - REAL WORLD FASTENING METHODS (DONE) • SURVEY - LAB FASTENING METHODS (DONE)

  9. OBJECTIVES • RESEARCH – LEATHER OR TOP-COAT SHRINKS? (CURRENT AND ONGOING) • RESEARCH EFFECT OF NUMBER OF WIRES ON FABRIC AS BASELINE (CURRENT)

  10. SURVEY OF LEATHER PERFORMANCE • 5 SAMPLES FROM EACH FULL HIDE: NECK LEG BELLY ARMPIT RUMP

  11. SURVEY OF LEATHER PERFORMANCE • 12 SECOND VERTICAL • 60 SECOND VERTICAL • SHRINK LENGTH RECORDED • SHRINK DEFINITION – DISTANCE FROM THE LOWEST POINT OF THE TOP OF THE SAMPLE TO THE HIGHEST UNCHARRED POINT AT THE BOTTOM OF THE SAMPLE, SUBTRACTED FROM THE INITIAL SAMPLE LENGTH • FIRE BLOCK PERFORMANCE

  12. SURVEY OF LEATHER PERFORMANCE

  13. SURVEY OF LEATHER PERFORMANCE • SAME MANUFACTURER, DIFFERENT COLORS, SEVERAL HIDES EACH COLOR

  14. 23% SHRINK 8% SHRINK

  15. SURVEY OF LEATHER PERFORMANCE • AS OIL BURNER TESTS DONE, RESULTS AND QUALITATIVE ASSESSMENT OF SHRINKAGE WILL BE RECORDED • ONGOING DISCUSSION WITH MANUFACTURERS ABOUT CAUSES OF SHRINKAGE

  16. EFFECT OF WIRESBASELINE TESTS ON FABRIC • 6 SCENARIOS TESTED: • SINGLE WIRE AT THE TOP OF THE BACK • 3 LOOSE WIRES EACH, BACK AND BOTTOM • 6 LOOSE WIRES EACH, BACK AND BOTTOM • 3 TIGHT WIRES EACH, BACK AND BOTTOM • 6 TIGHT WIRES EACH, BACK AND BOTTOM • TRUSSED UP LIKE A CHRISTMAS TURKEY

  17. SINGLE WIRE AT THE TOP OF THE BACK

  18. 3 LOOSE WIRES EACH, BACK AND BOTTOM

  19. 6 LOOSE WIRES EACH, BACK AND BOTTOM

  20. 3 TIGHT WIRES EACH, BACK AND BOTTOM

  21. 6 TIGHT WIRES EACH, BACK AND BOTTOM

  22. TRUSSED UP LIKE A CHRISTMAS TURKEY

  23. PERCENTAGE WEIGHT LOSS

  24. WHAT’S NEXT • AGREE ON “PREFERRED METHOD” BY EMAIL, ONLINE GROUP: http://tech.groups.yahoo.com/group/IAMFTWG/ • GET LEATHER SUPPLIER – VOLUNTEERS? • ROUND ROBIN – BEFORE NEXT MEETING ? • EXPERIMENT – VELCRO FASTENING • PRESESNT RESULTS – FINAL RECOMMENDATION FOR PREFERRED METHOD

  25. QUESTIONS?

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