Accession Number:

AD0483295

Title:

EXTRA WIDE TIRE DEVELOPMENT.

Descriptive Note:

Final technical rept. Nov 64-Apr 65,

Corporate Author:

GOODRICH (B F) CO AKRON OH

Personal Author(s):

• Sidles, James
• Heimovics, John F.

Report Date:

1966-04-01

Pagination or Media Count:

34.0

Abstract:

Based on available information, the concept of extra-wide tires has been essentially limited to the Rolligon and Terra-Tire concepts. Analytical results predict that a wide tire in comparison with tires of conventional geometry, will show equivalent or slightly less sinkage in 4 of the 5 soils examined. In general, higher rolling resistances are predicted for wide tires, expecially on soils of CBR 3 and below, principally because of a greater bulldozing rolling resistance component. Slightly higher rolling resistances are predicted for CBR 3-6 soils. Limited testing of multi-chambered model tires show that running multiple four conventional tires, stacked adjacent to each other, does not visibly damage the tires. As measured by soil disturbance comparisons, ground flotation of a wide tire concept based on multiple, stacked, essentially conventional tires appears to show promise in comparison with a conventional spaced tire system, and with a single tire of equivalent load capacity.

Descriptors:

• *AIRCRAFT TIRES
• FEASIBILITY STUDIES
• SOILS
• TEST METHODS
• ACCEPTABILITY
• STATE OF THE ART
• REPORTS
• MODEL TESTS
• CONFIGURATIONS
• FRICTION
• DEFORMATION
• LOADS(FORCES)
• SAFETY

Subject Categories:

• Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE