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sd4

  1. F0031

    SD-4 fins

    What is the significance, if any, of the two fin designs of the German SD-4 bomb? In Madbomber31's picture, http://www.bocn.co.uk/vbforum/attachments/CIMG0690.JPG you can see that most bombs have a complete cylindrical part but in a few the cylinder has circular sections missing (as in my...
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