Accession Number:

AD0894908

Title:

The C-5A Support Area Airfield Tests at Harper Lake.

Descriptive Note:

Technical rept. Apr 68-Jul 71,

Corporate Author:

AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s):

Report Date:

1972-05-01

Pagination or Media Count:

82.0

Abstract:

The site selection process and tests with a C-5A aircraft on unsurfaced soils are described. The work was performed as a part of the Category III flight-performance tests of the aircraft. Harper Lake, California, was selected as the test site. In-place soil tests were conducted and aircraft ground performance was measured during taxi, landing, and takeoff operations. Soil strength was adequate to support the aircraft however, the friable, cracked soil condition made it difficult to determine effects of the aircraft on the soil or the effect of the austere airfield situation on the performance of the aircraft. For conditions encountered, the aircraft appeared to have little effect on changes in soil strength. Turning and braking of the aircraft imposed the most severe condition upon the soil. Invariant soil strength conditions do not permit conclusions to expected variation in aircraft ground roll distance during takeoff. Present ground flotation criteria developed from tests with other types of aircraft appear reasonable when extrapolated to the loading conditions imposed by the C-5A. Author

Subject Categories:

  • Transport Aircraft
  • Terminal Flight Facilities

Distribution Statement:

APPROVED FOR PUBLIC RELEASE