The Air Force and contractor teams overseeing development of a new tailkit for the B61 nuclear bomb expect to close out issues stemming from a late 2013 review by June, around the same time they will begin a pair of important test sequences on the munition. Perhaps most notably, those include in-flight separation tests starting with the F-16 fighter and then progressing to the larger F-15 and B-2 platforms. The development of the B61 tailkit assembly, overseen on the industry...