bi plus normal operating, maintenance and repair cost, plus an arbitrary factor of 50 percent to cover the variables of climatic and job site conditions, and transportation to job site. Normally, this arbitrary factor would be low but it is realized that some percentage of the equipment will be available without cost on memorandum receipt from the military. Detail Estimates. On the following pages are cost estimates for Phases I, II, III, IV, and V of the construction and operation program, both in detail and summarized. IX -5