SCAMP: SYSTEMS CHARACTERISTICS AFFECTING MISSILE PRODUCTION; MOTOR LOADING.
Abstract
Summary: The only data necessary for making a prediction of the cost (or man-hours) of loading a solid propellant motor are the characteristics and these data should be available at the time an estimate is needed. The multiple correlation coefficients are unusually high. The deviations of the calculated values are small. Using seven points of data, the T-test for the cost data study indicates that only one independent variable is significant for 95% probability. Due to the rapidly changing technology in the missile industry, the motor loading costs have been inadequately recorded to permit a definite establishment of the universe and its parameters. Although the range of the data used in this study is relatively large, it should be pointed out that as future missile systems are developed, their characteristic values could be considerably greater or smaller than those used in this study. A cautious approach should be taken when extrapolations are made using the equations presented here. Extrapolations made beyond the range of actual data should be considered a rough estimate, adequate for budgetary planning but probably inadequate for evaluation of contractor proposals. If a solid propellant motor is loaded by the Army, with the standard Army procurement practices being used, and with no unusual quirks or deviations from the general design features of the motors used in this study, a useable estimate should be expected. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 25, 1963
- Accession Number
- AD0613201
Entities
Organizations
- United States Army Aviation and Missile Command