Accession Number:

AD0757272

Title:

The Service Life of Rocket Motors Filled with Double Base Propellants,

Descriptive Note:

Corporate Author:

EXPLOSIVES RESEARCH AND DEVELOPMENT ESTABLISHMENT WALTHAM ABBEY (ENGLAND)

Personal Author(s):

Report Date:

1973-01-01

Pagination or Media Count:

10.0

Abstract:

Double base propellants have been used in British Service for over 70 years originally chemical stability was assured by the addition of mineral jelly but this was later replaced by the more effective ethyl centralite. Ordnance propellants were sentenced as life expired when half the stabilizer initially present had been consumed. Life assessment has become more complex for modern compositions, especially those containing additives such as lead compounds or ammonium perchlorate, although chemical stability remains of paramount importance. With the advent of larger charges, problems of self-heating and gas generation have resulted in the development of new methods for testing chemical stability. Ballistic and physical property changes which cannot always be predicted from accelerated storage tests have also become more important for rocket applications. The interactions between double base propellants and the inhibitors and adhesives used are also life limiting. Author Modified Abstract

Subject Categories:

  • Solid Propellant Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE