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

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Presentation transcript:

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 “LEEWAY” IN RULES AND GUIDANCE ON FASTENING – EFFECT ON PASS OR FAIL

“GOOD” LEATHER

“BAD” LEATHER

TEST FASTENING METHODS

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

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

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

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

SURVEY OF LEATHER PERFORMANCE 12 Sec. Test 60 Sec. Test After FlameCharShrinkageAfter FlameCharShrinkage Burn TimeLength Burn TimeLength NECK RUMP FRONT LEG BELLY REAR ARMPIT AVERAGE STD DEV STD DEV % OF AVG9%13%10%67%4%16%

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

8% SHRINK 23% SHRINK

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

EFFECT OF WIRES BASELINE 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

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

PERCENTAGE WEIGHT LOSS

WHAT’S NEXT AGREE ON “PREFERRED METHOD” BY , ONLINE GROUP: GET LEATHER SUPPLIER – VOLUNTEERS? ROUND ROBIN – BEFORE NEXT MEETING ? EXPERIMENT – VELCRO FASTENING PRESESNT RESULTS – FINAL RECOMMENDATION FOR PREFERRED METHOD

QUESTIONS?