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|Title:||Evaluation of modifications of AM2 and XM18 landing mat|
|Authors:||Naval Air Engineering Center (U.S.)|
Burns, Cecil D.
Wolf, Denis P.
XM20 landing mat
AM2 landing mat
|Publisher:||U.S. Army Engineer Waterways Experiment Station.|
Engineer Research and Development Center (U.S.)
Abstract: This investigation was conducted to evaluate the performance of Alcoa AM2 and electron beam welded XM18 landing mat. The test section was subjected to traffic representing 1600 operational cycles of an aircraft having a 60,000-lb gross weight with a single-wheel main-gear assembly load of 27,000 lb and a 30x7.7 tire inflated to 400 psi. Based on the results obtained in this investigation, it is concluded that: (A.) The Alcoa AM2 landing mat will sustain 1600 cycles (188 coverages) of uniformly distributed aircraft operations with a 27,000-lb single-wheel load and 400-psi tire inflation pressure when placed on a subgrade having a CBR of approximately 6 or greater. This, however, does not meet the current minimum requirements for SATS set by NAEC. (B.) The electron beam welded XM18 landing mat will sustain 1600 cycles (188 coverages) of uniformly distributed aircraft operations with a 27,000-lb single-wheel load and 400-psi tire inflation pressure when placed on a subgrade having a CBR of 4.3 or greater. This performance is marginal with respect to compliance with the current minimum requirements. NOTE: This file is very large. Allow your browser several minutes to download the file.
|Appears in Collections:||Documents|