File:"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
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:08, 11 August 2019 | 2,870 × 3,530 (5.09 MB) | Tibet Nation | File: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 lig(...) - NARA - 17341228.jpg cropped 47 % horizontally, 2 % vertically, rotated 270° using CropTool with lossless mode. |
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