Related
Aviators Fall Into Sea Amid Crowd of Bathers [New York Tribune, 11 September 1911]
Aviators Fall Into Sea Amid Crowd of Bathers [New York Tribune, 11 September 1911]
Aviators Fall Into Sea Amid Crowd of Bathers [New York Tribune, 11 September 1911]
Aviators Tumble Into the Ocean [New York Times, 11 September 1911]
Aviators Tumble Into the Ocean [New York Times, 11 September 1911]
Airships as Scouts for our War Fleets [New York Times, 11 September 1911]
Blow & Milhaddo to Thomas Jefferson, September 10, 1792
Thousands See Aviator Skim Over New York City [New York World, 18 September 1911]
[Page 2 of New York American, 11 September 1911]
Tommy Sopwith and his Airship Among the Bathers [New York Tribune, 11 September 1911]
Summary
The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The collection includes correspondence, diaries, notebooks, photographs, and other materials dating from 1809 to 1979. The subject file contains documents organized by topic or subject and may include items such as newspaper articles, government documents, and notes or notes taken by the Wright brothers. The Wilbur and Orville Wright Papers are held at the Library of Congress in Washington, D.C. and are open to researchers by appointment.
The main types of airship are non-rigid, semi-rigid, and rigid. Non-rigid airships, often called "blimps", rely on internal pressure to maintain the shape of the airship. Semi-rigid airships maintain the envelope shape by internal pressure but have a supporting structure. Rigid airships have an outer structural framework which maintains the shape and carries all structural loads, while the lifting gas is contained in internal gas bags or cells. Rigid airships were first flown by Count Zeppelin and the vast majority of rigid airships built were manufactured by the firm he founded. As a result, all rigid airships are sometimes called zeppelins. In early dirigibles, the lifting gas used was hydrogen, due to its high lifting capacity and ready availability. Helium gas has almost the same lifting capacity and is not flammable, unlike hydrogen, but is rare and relatively expensive. Airships were most commonly used before the 1940s, but their use decreased over time as their capabilities were surpassed by those of aeroplanes.