Control of Contamination in Rocket Booster Hydraulic Systems 650345
Control of contamination in rocket booster hydraulic systems is of paramount importance if these systems are to operate reliably. This paper presents a general summary of the problems associated with contamination control of rocket booster hydraulic systems and includes discussions of the nature of the contamination normally encountered in these systems, the results of the presence of this contamination, and the cleanliness criteria currently in use. The results of an investigation into the effects of various types of cleaning on contamination are given. The present methods of contamination control are discussed and some improvements in particle counting techniques, including automatic particle counters, are reviewed.