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 (film) continual pranks that require discipline from his wing commander Lieutenant Commander Jeanette Deveraux (Saffron Burrows), Blair fights the distrust of Commander Paul Gerald (Jürgen Prochnow) and his crewmate Lt. Hunter (Richard Dillane) because of the drastic orders he brings from the Admiral, and because his mother was a "Pilgrim", a strain of humans who were the cause of the Pilgrim Wars. Pilgrims were the first human explorers and colonists and had developed the innate ability to navigate space by feel despite obstacles such as black holes. Marshall finds a kindred spirit in Lieutenant Rosie Forbes (Ginny Holder) and falls in