Selection of a Least “Cost” Hydraulic System for Launch Vehicle Engine Position Control 650319
The general aspects of selecting an optimum or least cost hydraulic thrust vector control system is covered. Cost includes: l) development cost, 2) unit cost, 3) the cost of weight, 4) the cost of failures, 5) the cost of low system response, 6) the cost of a short system life or operating time and 7) the cost of a long development time. This paper describes the development of a computer program for system cost investigations. The need for such investigations is discussed and results for a few specific systems presented.