No. 5 Group RAF effective squadrons of Bomber Command, personified by No 617 Squadron the "Dambusters", formed from 5 Group aircrew in March 1943. Most of the group's main airfields were around Lincoln, including RAF Scampton. By the end of the war the group had grown to 15 squadrons. The group was noted for its high accuracy bombing, being involved the sinking of the "Tirpitz" in November 1944 and the shattering of the strategic Bielefeld railway viaduct in March 1945. The Group introduced new weapons operationally, including Barnes Wallis's "bouncing" and his Tallboy and Grand Slam "earthquake" bombs. The group was disbanded on 15
Beituo 617-class tug Beituo 617-class tug The Beituo 617 class tug is a little known class of naval auxiliary currently in service with the People's Liberation Army Navy (PLAN). The name of this class is taken from that of the first unit commissioned, with the exact type still remaining unknown; a total of two of this class have been confirmed as being in active service as of the mid-2010s. The Beituo 617 class is a single deck design with a two level superstructure, a platform is atop of the second level. The Beituo 617 class ships in PLAN service are designated by a