sentences:  As the group was so far along in training, it moved to Grand Island Army Air Field, Nebraska in September where it became a regular unit of Continental Air Forces, receiving some of the last new B-29 aircraft manufactured by Boeing.In November, its 719th squadron was converted to a reconnaissance unit and redesignated the 46th Reconnaissance Squadron, Very Long Range (Photographic-Weather).On 21 March 1946, the 449th Bombardment Group became one of the initial ten B-29 groups assigned to Strategic Air Command (SAC).