Technical Notes National Advisory Committee For Aeronautics No. 253 Wind Tunnel Standardization Disk Drag
Washington: 1926. First Edition. Softcover. Complete in original wrapper; mimeo format, stapled (staples may show some rust) ; cover may have some light soiling or staining. Upper corner of cover has presentation stamp from the Committee. Presents tests done at the Langley Memorial Aeronautical Laboratory and elsewhere. More