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#quiet bird

  1. FoamyDM

    853-21 Quiet Bird by Foamy DM

    One of my next design projects are the 853-21 Quiet Bird. This a Paper model: Boeing Model 853-21 Quiet Bird in Test Lab The Quiet Bird was a version of the Boeing Model 853 which started out as an Army observation airplane study, this version of the 853 study was used to test materials and...