Multiwheel Landing Gear - Soils Interaction and Flotation Criteria - Phase 3. Part 2
Abstract
The design and utilization of military aircraft in forward area situations has required a continual investigation of those factors which define the aircraft flotation performance and operations capability on semi- and unprepared soil runways. This report summarizes these efforts conducted under Phase III - Part II of a continuing research program in landing gear/soil interaction. Phase III - Part II consisted primarily of a comprehensive investigation of the flotation variable of braking and how braked tire/soil interaction influences flotation performance. A series of full scale braked tire tests were conducted in a sand and clay type soil. An analytical study of braked tire/soil interaction was also made using a lumped parameter technique to simulate the soil. The results of these investigations resulted in two braking analysis equations which can be used to predict the braked tire drag ratio for aircraft type tires operating in sand and clay type soils. Additional studies were also made, on a preliminary basis, of the flotation variables of multipass and speed. An update of the Aircraft Flotation/Operation Summary Guide, initially presented in the Phase III - Part I Final Report, is also presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1972
- Accession Number
- AD0900576
Entities
People
- David C. Kraft
- Fred Bogner
- Henry Luming
- J. Richard Hoppenjans
Organizations
- University of Dayton