File:Airco DH-4 NMUSAF.jpg
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editDescriptionAirco DH-4 NMUSAF.jpg |
English: The de Havilland DH-4 in the NASM collection was the first American-built version of Geoffrey de Havilland's famous British World War I bomber. Although the museum's specimen did not see action during the war, it was a test aircraft for what was to become America's first bomber and the only American-built aircraft to serve with the U.S. Army Air Service in the First World War.
When the United States entered the conflict on April 6, 1917, the Aviation Section of the Signal Corps did not possess any combat-worthy aircraft. So that a viable air arm could be created in the shortest possible time, a commission was established under the direction of Colonel R.C. Bolling to study current Allied aircraft designs being used at the front and to arrange for their manufacture in America. Several European aircraft were considered, including the French Spad XIII, the Italian Caproni bomber, and the British SE-5, Bristol Fighter, and DH-4. The DH-4 was selected because of its comparatively simple construction and its apparent adaptability to mass production. It was also well-suited to the new American 400-horsepower Liberty V-12 engine. Still, considerable engineering changes from the original British design were required to apply U.S. mass production methods.collections.nasm.si.edu/code/emuseum.asp?profile=objects&... |
Date | |
Source | De Havilland DH-4 |
Author | Cliff from I now live in Arlington, VA (Outside Washington DC), USA |
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This image was originally posted to Flickr by cliff1066 at https://www.flickr.com/photos/28567825@N03/3344319524. It was reviewed on 1 April 2009 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
1 April 2009
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current | 09:30, 31 March 2009 | 1,600 × 1,067 (396 KB) | Threecharlie (talk | contribs) | {{Information |Description={{en|1=The de Havilland DH-4 in the NASM collection was the first American-built version of Geoffrey de Havilland's famous British World War I bomber. Although the museum's specimen did not see action during the war, it was a te |
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Camera manufacturer | Canon |
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Camera model | Canon EOS 5D |
Exposure time | 1/13 sec (0.076923076923077) |
F-number | f/2.8 |
ISO speed rating | 400 |
Date and time of data generation | 10:40, 11 May 2008 |
Lens focal length | 24 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | ACD Systems Digital Imaging |
File change date and time | 09:33, 10 March 2009 |
Y and C positioning | Centered |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 10:40, 11 May 2008 |
APEX shutter speed | 3.625 |
APEX aperture | 3 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 109 |
Color space | sRGB |
Focal plane X resolution | 3,086.925795053 |
Focal plane Y resolution | 3,091.2951167728 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |