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 II: Vengeance of the Kilrathi Wing Commander II: Vengeance of the Kilrathi Wing Commander II: Vengeance of the Kilrathi is the first sequel in Chris Roberts' "Wing Commander" science fiction space combat simulator franchise of computer games, produced by Origin Systems. Released in 1991, "Wing Commander II" retains much of the first game's core conventions: an interstellar war between the Terran Confederation and the felinoid warrior race called the Kilrathi, multiple allies as wingmen, and a wide variety of ships on both sides of the war. However, "WCII" places a greater emphasis on storytelling, providing various sprite-animated cutscenes and some of the industry's first examples