The Air Force Story, Chapter I - The Beginning (1953) | DH-4 Biplane | United States Air Force скачать в хорошем качестве

The Air Force Story, Chapter I - The Beginning (1953) | DH-4 Biplane | United States Air Force

The Air Force Story, Chapter I - The Beginning (1953) | DH-4 Biplane | United States Air Force. Traces the development of Airpower through Pioneers Orville and Wilbur Wright, Hap Arnold and Billy Mitchell. Credit: Uploaded by Public.Resource.Org Department of Defense Department of the Air Force The United States Air Force Wikipedia National Park Service (NPS) The DH-4 Liberty has the unique distinction of being the only American-built airplane to be flown into combat in World War I by American crews. This bomber, designed by famed British aviation engineer Geoffrey DeHavilland, first flew into combat with the British Royal Flying Corps in early 1917. When the United States joined the war in April of that year, an example was sent to the United States to determine if it was suitable for American production. The American Aircraft Production Board approved the design for construction in July 1917, pairing it with an American-designed V-12 "Liberty" engine. Because of this, American DH-4 planes were known as "Liberty planes." Thanks to an incredibly fast production schedule, the first Liberty plane rolled out of an American factory on October 29, 1917. The DH-4 biplane was a wood frame covered with fabric. Spruce was preferred for manufacturing airplanes because it was both strong and light. The need for dependable supplies of spruce drove the formation of the U.S. Army's Spruce Production Division, headquartered at Vancouver Barracks at today's Fort Vancouver National Historic Site. The nearly 30,000 soldiers of this division operated lumber camps, railroads, and three large mills (the largest of which was at Vancouver Barracks), to specifically cut Sitka spruce for aircraft production in the U.S., as well as in Great Britain, France, and Italy. Welcome to my Channel, Head2toe Photo. Thanks for Watching this Video. Please Subscribe, Share, Like and Comment. Also, please hit the Notification Bell to receive my newly Published videos. This Channel covers mostly Historical Events on all subjects.