Surface Velocities and Temperature Changes for C-130, C-141, and C-5A Exhaust Blasts and C-5A Wing-Tip Vortex

摘要

The report describes a series of field investigations conducted to determine exhaust-blast velocities and temperatures at the ground level for various aircraft and the wing-tip vortex velocity of the C-5A. Measurements of exhaust-blast velocities and temperature rise during static conditions were collected for C-130, C-141, and C-5A aircraft. Taxi, breakway, and lift-off tests were conducted with the C-141 and C-5A to record velocity during actual aircraft operations. Wind velocity created by the wing-tip vortex of the C-5A was recorded during actual aircraft operations. Results of these tests indicate that temperature increases from engine exhaust balsts are not sufficient to cause detrimental effects on runway surfacing in use to date. (Modified author abstract)