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Dr. E. Francis Warren, of Harvard U., believes he will be able to "shoot down" the heaviest clouds and fog by his new invention demonstrated recently at Bolling Field, Wash., by Army fliers. The process uses sand and he states that if enough airplanes are equipped with this device, it will not only be possible to break up clouds and cause rainbut to remove fogs from over both cities and harbors. The picture shows Lt. W. E. Melville pouring sand into the pit. Directly underneath the wing can be seen a nozzle that sprays the sand through the air
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Dr. E. Francis Warren, of Harvard U., believes he will be able to "shoot down" the heaviest clouds and fog by his new invention demonstrated recently at Bolling Field, Wash., by Army fliers. The process uses sand and he states that if enough airplanes are equipped with this device, it will not only be possible to break up clouds and cause rainbut to remove fogs from over both cities and harbors. The picture shows Lt. W. E. Melville pouring sand into the pit. Directly underneath the wing can be seen a nozzle that sprays the sand through the air
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Production. A-20 attack bombers. Another Douglas A-20 attack bomber leaves the assembly line at the Long Beach, California, plant for transfer to the flight line and test flight before delivery to the Army. The A-20 is used by the American Air Force and the Royal Air Force (RAF) for hedge hopping and strafing operations against ground troops and installations--also for reconnaissance work and night fighting. It is armed with light and heavy caliber guns
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Production. Airplane manufacture, general. Forming lucite (a shatter-proof plastic "glass") for war plane enclosures requires extreme care. Here an employee at North American Aviation's Inglewood, California plant cleans a mold with compressed air before forming the part. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe
Production. Airplane manufacture, general. Forming lucite (a shatter-proof plastic "glass") for war plane enclosures requires extreme care. Here an employee at North American Aviation's Inglewood, California plant cleans a mold with compressed air before forming the part. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe
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Dr. E. Francis Warren, of Harvard U., believes he will be able to "shoot down" the heaviest clouds and fog by his new invention demonstrated recently at Bolling Field, Wash., by Army fliers. The process uses sand and he states that if enough airplanes are equipped with this device, it will not only be possible to break up clouds and cause rainbut to remove fogs from over both cities and harbors. The picture shows Lt. W. E. Melville pouring sand into the pit. Directly underneath the wing can be seen a nozzle that sprays the sand through the air
Summary
Picryl description: Public domain image of an aircraft, aviator, 1910s-1920s, early 20th-century aviation, free to use, no copyright restrictions.
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
glass negatives
francis
warren
francis warren
harvard
harvard u
clouds
fog
invention
field
wash
army
fliers
army fliers
process
sand
airplanes
device
cause
rainbut
cause rainbut
cities
both cities
harbors
melville
pit
nozzle
sprays
air
1920 s airplanes
aviation history
airfield
bolling field
aviation
lieutenant
aircraft
aviators
doctor physician
airplane
washington dc
united states history
1920 s
library of congress
Date
01/01/1924
Contributors
Harris & Ewing, photographer
in collections
Location
Source
Library of Congress
Link
Copyright info
No known restrictions on publication.