DEVELOPMENT OF UNIQUE AND PROMISING EXPANDABLE TIRE SUBSYSTEM FOR AN ADVANCED CAPABILITY OF LANDING AND TAKE-OFF FROM ROUGH UNIMPROVED AREAS.
Final technical rept. Mar 65-Nov 66,
GOODRICH (B F) CO AKRON OH
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The contractor fabricated a series of expandable aircraft tires in two sizes 9.50 x 16 and 23.00 x 20 both of Type III construction. A co-lateral test and evaluation program was run by the Air Force Flight Dynamics Laboratory. Intermediate test results were used as a basis of tire refinement and improvement. These tires provide an inflated diameter 30 to 50 greater than the diameter as stored deflated in the wheel-well. Tire durability was proven when 1 One 9.50 x 16 tire completed 60 mission cycles simulating operation as a C-141 main tire a Type VII tire application. 2 One 9.50 x 16 and one 23.00 x 20 tire completed the dynamic requirements of MIL-T-5041D. 3 One 9.50 x 16 Tire completed the dynamic requirements of MIL-T-5041D with 100 of the 200 landings performed at 50 tire deflection an inflation pressure reduction of 40. 4 One 23.00 x 20 tire completed 80 take-offs, 100 landings and 1 aborted take-off cycle simulating operation of a heavy cargo type aircraft a Type VII tire application. An additional advantage was demonstrated when a simulated high speed landing test was successfully completed on a 9.50 x 16 expandable tire while in the deflated, folded position. This indicates that the tire has the potential for landing safely even though it may have been damaged. Author
- Transport Aircraft