Multiwheel Landing Gear-Soils Interaction and Flotation Criteria - Phase 3, Part 1
Abstract
The operational use of military aircraft in forward area situations has necessitated a comprehensive look at the critical factors which define the aircraft flotation performance and operations capability on semi- and unprepared soil runways. The investigation was directed primarily at defining the drag- sinkage response of multiple wheel landing gear on soil and the development of multiwheel flotation criteria to permit comparative evaluation of the relative merits of various landing gear configurations. The total multiwheel/soil interaction study consisted of four parts. Part 1 was an evaluation of existing full scale field test data from aircraft or test carts operating with multiple tire configurations (twin and tandem). The results of the study show that certain multiwheel configurations and spacing are beneficial in terms of sinkage-drag performance. The results of the multiwheel/soil interaction study were used to develop multiwheel flotation criteria (guidelines for evaluating performance). The flotation variable of braking was also studied on a preliminary basis. Braked tire/soil interaction equations suitable for defining the braking coefficient on soil were developed, and the results of a comparative study using these braked tire equations were favorable.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1971
- Accession Number
- AD0885275
Entities
People
- David C. Kraft
- Henry Luming
- J. R. Hoppenjans
Organizations
- University of Dayton