= 2 mr 13 engaged in an extensive B-57B training program, the purpose of which was to cross-train F-816 pilots in the newer type afroraft, Eleven F-8/0 aire craft, used for REDWINO sampling, ware transferred to Air Materiel Coomand for salvages however, the destruction of six of the F.810's was delayed until a definite determination was made that Strategic Air Command would be able to participate in HARDTACK, Modification of the B-57B airoraft from conventional configuration to sampler configuration and for the installation of-commmnications and electronics equipment, took place during late 1957 and early 1958. B~S7D aircraft also were modified during this period, The (See Kiroraft Hodi- fication," this chapter, for additional information regarding B-57 modifi. cation, Virtually all members of the 926th Test Squadron had experience in sampling procedures during muclear tests, or had reocetved adequate pree liminary training by April 1958. The B-57B transition training program suffered some early delays while the aircraft were undergoing modifica~ tions however, by February 1958, the program had been intensified to such a degree that crew member's were acquiring sufficient training for HARDTACK operations. The training program concentrated upon long range navigation flights and Link trainer flights, the latter simulating all instrument approaches likely to be encountered during HARDTACK operations, The pro- gram also included shakedown flights on each aircraft to determine exact fuel consumption rates,

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