The Vertical Wind Tunnel of the National Advisory Committee for Aeronautics (1931)
NASA Technical Reports Server (NTRS) · leaf 5
NAL ADVISORY COMMITTEE The remainder of this floor space is used for instal- part is made of laminated white pine turned to the lation of instruments used in the tests. proper shape. Entrance cone.—The entrance cone was made very- Exit cone.—The exit cone is a right circular cone with short because… … Figure 1.—Details—5-foot diameter jet vertical wind tunnel exit cone, because it was found in preliminary model- from a 9-foot square to a 5-foot diameter circle in a cone tests that satisfactory results could be obtained length of 4 feet 2 inches. The entrance cone then without it. A molding of…
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-651-284.webp)
