Evaluation of Three Thermal Protection Systems in a Hypersonic High-Heating-Rate Environment Induced by an Elevon Deflected 30 deg.

reportActive / Technical Report | Accession Number: ADA300983 | Open PDF

Abstract:

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

Author(s):
Taylor, Allan H. ; Jackson, L. R. ; Weinstein, Irving
Author Organization(s):
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER
Descriptive Note:
Technical memo.,
Supplementary Note:
Prepared in collaboration with Vaught Corp., Hampton, VA.
Pagination:
0041

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Availability: Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NASA-L-11734, NASA-TM-74077
Monitor Series:
TM-74077, XD
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5.3_Planning; JCA_5_Command and Control; JCA_1_Force Support; JCA_6_Net Centric; JCA_6.4.1_Secure Information Exchange; JCA_1.2_Force Preparation; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.2.3_Core Enterprise Services
Communities of Interest:
Air Platforms
Descriptor(s):
*ALUMINUM ALLOYS, *HEAT SHIELDS, *AERODYNAMIC HEATING, *HYPERSONIC AIRCRAFT, *HEAT RESISTANT MATERIALS, *THERMAL INSULATION, HIGH TEMPERATURE, IMPACT STRENGTH, COMBUSTORS, EROSION, PAINTS, MACH NUMBER, HYPERSONIC FLIGHT, THERMOCOUPLES, HEAT SINKS, THERMAL RESISTANCE, ABLATIVE MATERIALS, PITTING
Field(s)/Group(s):
Aerodynamics, Research and Experimental Aircraft, Properties of Metals and Alloys
Keyword(s):
LOCKALLOY, IMPACT LOADS
Report Date:
1977 Dec 01