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The C 7 passing over the White House this morning on her trip from Hampton Roads to Bolling Field

description

Summary

Photograph shows Navy C 7, the first lighter-than-air ship to be inflated with helium, flying over the White house in Washington, D.C.

In album: Washington, D.C., 1 Dec. 1921 to 31 Dec. 1921, v. 3, Herbert E. French, National Photo Company, p. 7 , no. 17032.

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.

Airplanes and blimps above National Mall, Washington Monument, Potomac river and around.

Founded in 1917 as The Flying Field at Anacostia, the Bolling Field was the first military airfield near the United States Capitol. It was renamed Anacostia Experimental Flying Field in June 1918. Throughout the Second World War, Bolling Field served as the aerial gateway to the US capital Washington D.C. After WWII, Bolling Field's property became Naval Air Station Anacostia and a new Air Force base, named Bolling Air Force Base, was constructed just to the south of the field in 1948.

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Tags

white house washington dc navy equipment and supplies washington dc airships firsts photographic prints white house trip hampton roads hampton roads field historical photos large airships exterior mansion aviation history airfield bolling field aviation us navy lot 12293 print ultra high resolution high resolution view airship united states history library of congress
date_range

Date

01/01/1921
collections

in collections

Leviathans of Air

Airships: powered, steerable lighter than air aircrafts.

Aviators and Airplanes in DC

National Capital: The good old days of aviation

Bolling Field

The first military airfield near the United States Capitol
place

Location

Washington, District of Columbia, United States ,  38.90719, -77.03687
create

Source

Library of Congress
link

Link

http://www.loc.gov/
copyright

Copyright info

No known restrictions on publication.

label_outline Explore Lot 12293, Firsts, Bolling Field

Topics

white house washington dc navy equipment and supplies washington dc airships firsts photographic prints white house trip hampton roads hampton roads field historical photos large airships exterior mansion aviation history airfield bolling field aviation us navy lot 12293 print ultra high resolution high resolution view airship united states history library of congress