However it was these very accidents that have helped raise the awareness of many safety issues and improved several aspects of commercial aviation today. After just one year of commercial service the Comet suffered a range of technical problems which resulted in a number of high profile accidents. The Comet was thus heralded an immediate success and enabled Great Britain to take the lead in commercial aviation. The Comet offered an alternative to travelling by ship and train, transformed the passenger experience and significantly reduced travel times against any of its competitors. The first prototype of the Comet, developed and manufactured by de Havilland in Hertfordshire, United Kingdom, flew in 1949 and was released as the first commercial jetliner in 1952. After twenty years of research, experimentation and experience from building jet fighters, such as the Gloster Meteor, the Comet was born. The story of the de Havilland Comet first began in 1929, when a British Royal Air Force engineer Frank Whittle first presented the idea of powering an airplane with a gas turbine engine. Covers all key battles, land and sea, and their impacts, as well as the critical technological developments that affected the war's outcomes.Includes a chronologically organized document volume that enables students to examine the sources of historical information firsthand.Supplies detailed analyses and explanations of the events before, during, and after World War I, such as how the results of the war set the stage for the global Great Depression of the 1930s, as well as detailed biographical data on key military and civilian individuals during World War I.Provides comprehensive coverage of the causes of the war that allows readers to fully understand the complex origins of such a monumental conflict.Offering exhaustive coverage, detailed analyses, and the latest historical interpretations of events, this expansive, five-volume encyclopedia is the most comprehensive and detailed reference source on the First World War available today. Named Booklist, Editors’ Choice: Reference Sources, 2014. Editor (with Spencer Tucker), author of 33 short articles, sole compiler/editor, Vol.
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