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. (Author)
Aircraft Ground-Flotation Investigation. Part V Data Report on Test Section 4
1966
40 pages
Report
Keine Angabe
Englisch
Air Transportation , Jet transport planes , Flotation , Landing fields , Trafficability , Aircraft tires , Vehicle wheels , Soil mechanics , Deformation , Deflection , Surfaces , Aircraft landings , Takeoff , Landing gear , Loads(Forces) , Road tests , Simulation , Shock resistance , Landing mats , Load distribution , Landing impact , Failure(Mechanics) , C-5 aircraft , M-8 mats