FABRIC BRIDGE IS INFLATED AND DEPLOYED ON SITE

AN AIR-FILLED BRIDGE THAT CAN CARRY A 20-TON TANK OVER AN OPEN GAP IS BEING DEVELOPED BY GOODYEAR AEROSPACE CORP. THE BRIDGE CAN BE INFLATED ON A SITE WITH RELATIVELY LOW PRESSURE-10 TO 15 PSI-TO CROSS A GAP UP TO 90 FEET WIDE. AFTER TRANSPORTING A TANK OR A WHOLE CONVOY, THE BRIDGE CAN BE DEFLATED AND CARRIED ALONG WITH THE CONVOY TO THE NEXT CANYON. THE KEY TO THE DESIGN IS THE MATERIAL WHICH IS CALLED AIRMAT. IT IS A DOUBLE-WALLED, HOLLOW FABRIC, POLYESTER COATED WITH URETHANE, MADE UP OF TWO SHEETS WOVEN ONE ABOVE THE OTHER AND CONNECTED LOOSELY WITH CONTINUOUS-DROP THREADS. WHEN THE FABRIC IS SEALED AND INFLATED A BOX-BEAM STRUCTURE RESULTS THAT IS STRONG ENOUGH TO SPAN A GAP SUCH AS A RIVER OR CANYON ON ITS OWN WEIGHT (5000 LB.). THE FABRIC MAKES A PACKAGE THAT IS CARRIED ACCORDION-LIKE ON A STANDARD 2 1/2-TON ARMY TRUCK. IT TAKES ABOUT 30 MINUTES TO UNLOAD THE BRIDGE, INFLATE IT, AND PUT IT IN PLACE, AND THE SAME TIME TO REPACK IT ABOARD THE TRUCK.

  • Supplemental Notes:
    • Vol 41, No 14, P 19, 1 PHOT
  • Publication Date: 1970-7-6

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Filing Info

  • Accession Number: 00209313
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 28 1970 12:00AM