XIII Aircraft 20 B-57 Annual Flying Hours Pol-Maint 8,37h (7,320) 5 C~130 6,325 (6,131) 12 WB-50 10,9) Direct Cost/Hour Operating Cost $345.38 $2,892,212 385.37 4, 044.073 Total $ 8,716,267 Hours shown in parenthesis were total hours required to perform stated mission; however, the concept of four sampling units with identical capabilities required additional hours to be programmed at Yokota and Guam, increasing the B-57 and C-130 totals as shown, This concept was in accordance with the Air Force Technical Applications Center desires, (b) Modifications of aircraft: Aircraft Type of Modification B-57 Installation of doppler Cost $261,600 navigation equipment in 6 aircraft (3-Alaska, 3- Guam) @$34,600 each plus 2 bench mockups @§27,000 each C-130 4,00, 000 Prototype sampling modification of one aircraft @ $100,000 plus follow on -7 (c) modifications of four aircraft @ $75,000 each Total $661,600 Manpower required to support this proposal, showing net change in present manning for the Air Weather Service: 285 SWEH -2-003h no" AFWLU/HO