"Strength_tests_on_DH-4_airplane_wing_ribs_Project-L-225-2"_from-_Forest_Products_Laboratory_for_Research_Work_during_the_war._Illustrating_the_development_in_designing_a_wing_rib_for_De_Haviland_airplane_-_NARA_-_17341228_(cropped).jpg
Summary
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Record creator
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War Department. 1789-9/18/1947 | ||||||||||||||||||||||||||
Title |
Airplanes - Wings - Forest Products Laboratory for Research Work during the war. Illustrating the development in designing a wing rib for De Haviland airplane. The improved wing rib as designed is 30 per cent light in weight and has more than twice the strength of the original rib of the Government Forest Service
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Description |
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Date | 1917 – 1918 | ||||||||||||||||||||||||||
Collection |
institution QS:P195,Q518155
National Archives at College Park - Archives II (College Park, MD)
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Record ID
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Source | U.S. National Archives and Records Administration | ||||||||||||||||||||||||||
Other versions |
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Licensing
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. The National Archives and Records Administration provides images depicting American and global history which are public domain or licensed under a free license.
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Public domain Public domain false false |
This image is a work of a
U.S. military
or
Department of Defense
employee, taken or made as part of that person's official duties. As a
work
of the
U.S. federal government
, the image is in the
public domain
in the United States.
العربية ∙ català ∙ čeština ∙ Deutsch ∙ Ελληνικά ∙ English ∙ español ∙ eesti ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ हिन्दी ∙ hrvatski ∙ magyar ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ മലയാളം ∙ Malti ∙ Nederlands ∙ polski ∙ português ∙ português do Brasil ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ српски / srpski ∙ ไทย ∙ Türkçe ∙ українська ∙ Tiếng Việt ∙ 中文 ∙ 中文(简体) ∙ 中文(繁體) ∙ +/− |
Annotations
InfoField
|
This image is annotated: View the annotations at Commons |
Forest Products Laboratory
DH-4