Evaluation of Harvey New-Profile AM2 Landing Mat.
Abstract
This investigation was conducted to evaluate the new-profile AM2 landing mat, which was extruded and fabricated by Harvey Aluminum Company, Torrance, Calif. Three methods were used to attach end connectors to the 2-ft-wide main extrusion to form either the 2- by 12-ft or 2- by 6-ft planks. These methods were electron beam welded with inserts (EBI), electron beam welded without inserts (EB), and metal-inert-gas fusion welded without inserts (MIG). Two test sections, each consisting of two clay subgrade items at a strength of 4 CBR, were constructed and surfaced with the new-profile mat. Items 1 and 2 of test section 1 were surfaced with the EBI and EB mat, respectively. Both items in test section 2 were surfaced with the MIG welded mat, where two mat laying patterns were used so that the traffic lane in item 1 did not include any end joints and the traffic lane in item 2 incorporated 20 end joints. Each test section was subjected to uniform-coverage traffic representing operations of an aircraft having a 60,000-lb gross weight with a single-wheel main-gear assembly load of 27,000 lb with a 30x7.7 tire inflated to 400 psi.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1970
- Accession Number
- ADA032965
Entities
People
- Cecil D. Burns
- Robert W. Grau
- Victor C. Barber