Accession Number : AD0603596

Title :   PRODUCT IMPROVEMENT PROGRAM TO PROVIDE EXTRA HIGH STRENGTH PURCHASE TAPES FOR THE BAK9/F48A AIRCRAFT ARRESTING BARRIER.

Descriptive Note : Final rept.,

Corporate Author : UNITED STATES RUBBER CO WAYNE N J

Personal Author(s) : Schichman,Daniel ; Illingworth,S. C.

Report Date : JUN 1964

Pagination or Media Count : 262

Abstract : This report was prepared in order to present the results of an analytical and experimental effort to provide extra high strength purchase tapes with improved wear and engaging speed characteristics for the BAK-9 arresting sys tem. The purchase tapes now used on the BAK-9 barrier have an ultimate strength of 70,000 pounds and are not capable of exploiting the full thermal energy potential of the absorber unit. Using the existing purchase tapes, the BAK-9 has a nominal energy capacity of 52 million foot-pounds in 950 feet of runout with this capacity being limited by maximum permissable tape tension. It is considered that full thermal capacity of the BAK-9 (70 million foot-pounds) can be realized by using purchase tapes having an ultimate strength of 100,000 pounds while still retaining the same physical dimensions as the existing tapes. A design study covering the materials and construction of the present tape was made. The quality control methods employed by the tape manufacturer were investigated and evaluated. An analog computer study of the behavior of the tape during an arrestment and the control parameters which describe the operation of the BAK-9 system was made. Finally, a tape design which is considered to fulfill the requirements of the contract is recommended. (Author)

Descriptors :   (*ARRESTING GEAR, TAPES), (*TAPES, ARRESTING GEAR), AIRCRAFT, LANDING AIDS, CORDAGE, DACRON, NYLON, MECHANICAL PROPERTIES, MANUFACTURING, QUALITY CONTROL, TEST METHODS, MATHEMATICAL MODELS, ANALOG COMPUTERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE