Development of Air Speed Nozzles
This is a 1920 technical report from NASA's Technical Reports Server, a set of plate photographs documenting the development of pitot-static air speed nozzles for aircraft instruments. The plates are sequential photographs of individual nozzle designs, mounted on wall or bracket supports, with figure captions beneath each image. For a designer, the pictures offer a close, unembellished record of early aviation instrument hardware: smooth metal tubes with bent elbows, flared tips and simple flanged mounts, shot in plain grey light against blank backgrounds.
