Heavy bomber version of the bouncing bomb, was used to destroy the Mohne and Eder dams by Lancasters from the specially recruited and trained 617 Squadron, often known as the Dambusters, under Wing Commander Guy Gibson. In March and April 1945, as the war in Europe was ending, Lancasters dropped Grand Slams and Tallboys on U-boat pens and railway viaducts across north Germany. At Bielefeld more than of railway viaduct was destroyed by Grand Slams creating an earthquake effect, which shook the foundations. The Boeing B-29 Superfortress was a development of the Fortress, but a larger design with four Wright R-3350 Duplex-Cyclone
Wing Commander (horse) out of the mare Flirtation Walk and sired by the stallion Anacacho Shamrock. He was bred and owned by Dodge Stables, a part of Castleton Farm near Lexington, Kentucky which at the time was owned by Frances Dodge. His bloodlines traced back to Rex McDonald and Bourbon King, who appeared on both his sire and dam's side. Wing Commander was a five-gaited Saddlebred, meaning that in addition to the default walk, trot, and canter, he also performed a slow gait and rack. He was trained by the notable Saddlebred trainer Earl Teater and groomed by Gregory Pena. Wing Commander began