Accession Number : AD0442591


Title :   DEVELOPMENT OF FRONTAL SECTION FOR SUPER-ORBITAL, LIFTING, RE-ENTRY VEHICLE. VOLUME III. ASSET NOSE CAP.


Descriptive Note : Final rept., July 61-May 64,


Corporate Author : SOLAR TURBINES INTERNATIONAL SAN DIEGO CA


Personal Author(s) : Licciardello, M R


Report Date : 29 May 1964


Pagination or Media Count : 166


Abstract : A tungsten-thoria composite structure was selected for use on the nose cap of the ASSET glide reentry vehicle. The design, fabrication, and qualification ground tests for that nose cap are presented. The maximum stagnation point hot wall flux was 206 Btu/sq ft. sec, resulting in a maximum thoria surface temperature of 4150 F and a maximum temperature of the tungsten structure of 3300 F. Based on measured thermal properties of thoria, a composite design was developed, weighing a total of 12.8 pounds. A test nose cap survived a static pressure load test to 320 pounds; acoustic vibration to 155 db; and a combined temperature/vibration test of 10 g at 2000 F and 3 g at 4100 F. Other nose caps were tested successfully in a plasma arc tunnel at surface temperatures to 5000 F. (Author)


Descriptors :   *NOSE CONES , *REENTRY VEHICLES , NOSE CONES , HEAT SHIELDS , HYPERSONIC CHARACTERISTICS , STRESSES , ENVIRONMENTAL TESTS , MANUFACTURING , WEIGHT , CONFIGURATIONS , PROTECTIVE TREATMENTS , THORIUM COMPOUNDS , OXIDES , PHYSICAL PROPERTIES , TUNGSTEN , MOLYBDENUM , THERMAL PROPERTIES , SURFACE TEMPERATURE , HEAT RESISTANT MATERIALS , STRUCTURAL PROPERTIES , TEST FACILITIES , CERAMIC MATERIALS , ACCEPTABILITY , PLASMAS(PHYSICS)


Distribution Statement : APPROVED FOR PUBLIC RELEASE