Production. C-47 transport planes. Great numbers of C-47 transport planes move along the assembly lines at the Douglas… https://www.rawpixel.com/image/12307340/image-plant-person-planesFree Image from public domain licenseProduction. C-47 transport planes. A long line of C-47 transport planes awaits the installation of wings at the Long Beach… https://www.rawpixel.com/image/12306481/image-plant-person-planesFree Image from public domain licenseProduction. Pratt and Whitney airplane engines. Cylinder barrels for Pratt and Whitney airplane motors must undergo rigid… https://www.rawpixel.com/image/12308158/image-plants-person-airplaneFree Image from public domain license