Accession Number:

ADA110531

Title:

The Behavior of Range Safety System Ordnance for the Space Shuttle with Simulated Aerodynamic Heating

Descriptive Note:

Final rept. 2 Apr 1979-2 Apr 1980

Corporate Author:

NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD

Personal Author(s):

Report Date:

1981-10-20

Pagination or Media Count:

36.0

Abstract:

Autoignition and performance tests simulating reentry temperature conditions were completed using the RSS ordnance in a simulated flight configuration. Temperature measurements were made at several locations within the RSS to provide data for thermal model correlation. Autoignition resulted in detonation and functioning of the RSS with destruction cutting of the simulated External Tank wall in five tests. In six tests, thermal explosions resulted with no cutting action. Autoignition of HMX in the linear shaped charge configuration occurred at approx. 470 deg F compared to the reported value of 585 deg F for the bulk explosive. Autoignition of the complete RSS CDF-LSC assembly occurred in the range of 390 deg-450 deg F. It appears that autoignition of the PETN tip at the end of the CDF is not a factor in the transfer of explosion or detonation to the linear shaped charge, and HNS in the CDF is safe to approx. 1000 deg F.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Ammunition and Explosives
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE