AIRCRAFT GROUND-FLOTATION INVESTIGATION. PART V DATA REPORT ON TEST SECTION 4
Abstract
This data report describes work undertaken as part of an overall program to develop ground-flotation criteria for the C-5A aircraft. A test section was constructed to a width adequate for two test lanes. Each lane was divided into three items having different subgrade CBR values and different traffic surfaces. Item 1 was surfaced with modified T11 aluminum landing mat, item 2 with M8 steel mat, and item 3 remained unsurfaced. Traffic was applied to the lanes using a 70,000-lb load having different wheel assembly configurations. A single-tandem and a twin-wheel assembly were used on each of the two test lanes, respectively. Each assembly consisted of two 56x16, 24-ply aircraft tires spaced 60 in. c-c with inflation pressure of 100 psi. This report presents the data collected on soil strengths, surface deformations and deflections, and drawbar pull. The traffic-coverage level at failure for each test item is also given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0809381
Entities
People
- W. J. Hill Jr.
- W. N. Brabston