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 IV: The Price of Freedom Wing Commander IV: The Price of Freedom Wing Commander IV: The Price of Freedom is the fourth main game in the "Wing Commander" science fiction space combat simulator video game series, produced by Origin Systems and released by Electronic Arts for the PC in 1996 and the Sony PlayStation in 1997 (the game was also released on the North American PlayStation Network Store in 2009). The first game set after the end of the Terran-Kilrathi War, "Wing Commander IV" depicts a galaxy in the midst of a chaotic transition, with human civilians, Kilrathi survivors and former soldiers on both sides