Evaluation of Three Thermal Protection Systems in a Hypersonic High-Heating-Rate Environment Induced by an Elevon Deflected 30 deg.
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER
Pagination or Media Count:
Three thermal protection systems proposed for a hypersonic research airplane were subjected to high heating rates in the Langley 8-foot high-temperature structures tunnel. Metallic heat sink Lockalloy, reusable surface insulation, and insulator-ablator materials were each tested under similar conditions. The specimens were tested for a 10-second exposure on the windward side of an elevon deflected 300. The metallic-heat-sink panel exhibited no damage however, the reusable-surface-insulation tiles were debonded from the panel and the insulator-ablator panel eroded through its thickness, thus exposing the aluminum structure to the Mach 7 environment. MM
- Research and Experimental Aircraft
- Properties of Metals and Alloys