the 351st supervised missile training operations and coordinated construction of sm-30b (later, lgm-30b) minuteman i missile facilities from 1 february 1963, to 29 june 1964. the first missile arrived 14 january 1964 and was placed its silo two days later. the 508th sms became combat ready on 5 june and the 509th on 10 june 1964. the last flight of the fifteen missiles was accepted 29 june 1964, making the 510th operational. the wing then had 150 fully operational missiles. two-officer missile combat crews were deployed to each of the lccs for 24-hour shifts. meanwhile, the 340th bombardment wing phased down for inactivation and 351st strategic missile wing gradually assumed host-wing responsibilities at whiteman afb, between 1 july and 1 september 1963. later, the wing converted to lgm-30f minuteman ii missiles between 7 may 1966, and 3 october 1967.