Production. Pratt and Whitney airplane engines. A propeller shaft of a Pratt and Whitney airplane engine is carefully… https://www.rawpixel.com/image/12307903/image-face-plant-personFree Image from public domain licenseProduction. Halftrac armoured cars. A partly-finished halftrac scout car body is lowered on a chassis in an Eastern war… https://www.rawpixel.com/image/12307341/image-plant-person-airplaneFree Image from public domain licenseAt one of the final assembly stages in the Vought-Sikorsky Aircraft Corporation, Stratford, Connecticut. Sourced from the… https://www.rawpixel.com/image/12316724/image-person-airplane-technologyFree Image from public domain license[Untitled photo, possibly related to: East Hartford, Connecticut. Congestion outside the Pratt and Whitney United aircraft… https://www.rawpixel.com/image/12323355/image-plant-person-skyFree Image from public domain license110523-N-KB563-134 LAE, Papua New Guinea (May. 23, 2011) Aviation Electronics Technician 3rd Class Joe Jenkins checks for… https://www.rawpixel.com/image/3319319/free-photo-image-aircraft-apparel-car-wheelFree Image from public domain licenseVintage Plane. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3371793/free-photo-image-aircraft-airfield-airplaneFree Image from public domain licenseAnother sturdy track for an Army halftrac car will soon be ready for use. On the trimming rack of the Ohio tire plant in… https://www.rawpixel.com/image/12307025/image-face-plant-personFree Image from public domain licenseS.C. Civil Air Patrol and Richland County Sherriff's Department participates in ACA exercise https://www.rawpixel.com/image/4040485/photo-image-person-carFree Image from public domain licenseSons of agricultural day laborer after washing up for dinner, near Webber Falls, Muskogee County, Oklahoma by Russell Lee https://www.rawpixel.com/image/12170374/image-face-hand-personFree Image from public domain licenseIdaho Helicopters, Inc., Assistant Chief Pilot JT Theis lands a Bell 205A-1 helicopter, so veteran wildland firefighter… https://www.rawpixel.com/image/3306460/free-photo-image-helicopter-aircraft-airfieldFree Image from public domain licenseA broken, strange and crashed plane on a sandy floor. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289702/free-photo-image-aircraft-airfield-airplaneFree Image from public domain licenseTrailer camp where many defense workers live opposite Pratt and Whitney aircraft plant, East Hartford, Connecticut. Sourced… https://www.rawpixel.com/image/12247308/photo-image-plant-person-treeFree Image from public domain licenseU.S. Army Chief Warrant Officer 3 James Green, left, a UH-72A Lakota helicopter pilot with Charlie Company, 1-224th Security… https://www.rawpixel.com/image/4035198/photo-image-people-public-domainFree Image from public domain licenseChairman of Cornish machinery cooperative handing over check to dealer in payment of ensilage harvester. Preston, Idaho by… https://www.rawpixel.com/image/12149040/image-person-art-vintageFree Image from public domain licenseSon of ex-farmer now on W.P.A. (Work Projects Administration), central Ohio. Sourced from the Library of Congress. https://www.rawpixel.com/image/12255253/photo-image-plant-person-airplaneFree Image from public domain license[Untitled photo, possibly related to: Holabird ordnance depot, Baltimore, Maryland]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294259/photo-image-person-public-domain-manFree Image from public domain licenseKeeping the airliner air-conditioned while it is one the ground. Municipal airport, Washington, D.C.. Sourced from the… https://www.rawpixel.com/image/12279445/photo-image-sky-airplane-roadFree Image from public domain licenseWashington, D.C. Transfer press at the United States Bureau of Engraving and Printing. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268019/photo-image-person-technology-public-domainFree Image from public domain licenseWashington, D.C. Rotary postage stamp press at the United States Bureau of Engraving and Printing. Sourced from the Library… https://www.rawpixel.com/image/12271256/photo-image-person-airplane-public-domainFree Image from public domain licenseLas Vegas, Nevada. A view of one of the huge buildings being constructed at Basic Magnesium Incorporated, as seen under a… https://www.rawpixel.com/image/12297862/photo-image-airplane-public-domain-natureFree Image from public domain licenseEmployment office of the Consolidated Aircrafts. Employees of Consolidated has jumped from 3000 to 16,000 in about a year.… https://www.rawpixel.com/image/12149300/image-person-art-vintageFree Image from public domain licenseMachinery of stationary-type mechanical hop picker, Yakima County, Washington by Russell Lee https://www.rawpixel.com/image/12172254/image-person-art-vintageFree Image from public domain licenseConstantine (vicinity), Algeria. A Red Cross clubmobile serving doughnuts and coffee to the crew of a bomber just returned… https://www.rawpixel.com/image/12294949/photo-image-people-sky-airplaneFree Image from public domain licenseTunis, Tunisia. General de Gaulle saluting the guard of honor drawn up at the airport to greet him on the occasion of his… https://www.rawpixel.com/image/12294922/photo-image-people-sky-airplaneFree Image from public domain license[Untitled photo, possibly related to: Tunis, Tunisia. Wrecked German planes at El Aouiana airport]. Sourced from the Library… https://www.rawpixel.com/image/12295251/photo-image-person-planes-public-domainFree Image from public domain licenseHolabird ordnance depot, Baltimore, Maryland. Periodic complete vehicle inspection is required of every United States Army… https://www.rawpixel.com/image/12294037/photo-image-person-airplane-public-domainFree Image from public domain license[Untitled photo, possibly related to: Bar Harbor, Maine. Civil Air Patrol base headquarters of coastal patrol no. 20. Plane… https://www.rawpixel.com/image/12295929/photo-image-person-plane-public-domainFree Image from public domain licenseFreshly-painted cylinders for aircraft engines on the floor of the plant in east Hartford, Connecticut. Sourced from the… https://www.rawpixel.com/image/12277664/photo-image-background-plant-personFree Image from public domain license[Untitled photo, possibly related to: Passengers boarding a plane on a rainy day at the municipal airport in Washington… https://www.rawpixel.com/image/12263474/photo-image-person-plane-public-domainFree Image from public domain license[Untitled photo, possibly related to: Bar Harbor, Maine. Civil Air Patrol base headquarters of coastal patrol no. 20. A… https://www.rawpixel.com/image/12295713/photo-image-face-person-airplaneFree Image from public domain licenseNashville, Tennessee. Vultee Aircraft Company. Working on the landing gear of a bomber. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287767/photo-image-person-airplane-technologyFree Image from public domain licenseIn the Vought-Sikorsky Aircraft Corporation, Stratford, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12262414/photo-image-person-airplane-public-domainFree Image from public domain license[Untitled photo, possibly related to: Middle River, Maryland. FSA (Farm Security Administration) housing project for Glenn… https://www.rawpixel.com/image/12294924/photo-image-plant-sky-treeFree Image from public domain licenseNashville, Tennessee. Vultee Aircraft Company. Working on the landing gear of a bomber. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287784/photo-image-person-airplane-technologyFree Image from public domain license[Untitled photo, possibly related to: Boeing aircraft plant, Seattle, Washington. Production of B-17F (Flying Fortress)… https://www.rawpixel.com/image/12296886/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Aircraft motor casings at the Pratt and Whitney Aircraft Corporation. East Hartford… https://www.rawpixel.com/image/12277937/photo-image-background-plant-personFree Image from public domain license[Untitled photo, possibly related to: Residents of Northome, Minnesota] by Russell Lee https://www.rawpixel.com/image/12146393/image-person-art-vintageFree Image from public domain licenseDetroit, Michigan. Scrap collected for salvage at a rally sponsored by the Work Projects Administration (WPA) at the state… https://www.rawpixel.com/image/12291674/photo-image-airplane-public-domain-natureFree Image from public domain licenseReceiving weather report through the underground communication system at the field of the municipal airport in Washington… https://www.rawpixel.com/image/12263595/photo-image-person-airplane-public-domainFree Image from public domain license[Untitled photo, possibly related to: Montgomery County, Maryland. Tire of farmer's car]. Sourced from the Library of… https://www.rawpixel.com/image/12291753/photo-image-shadow-airplane-public-domainFree Image from public domain licenseMontgomery County, Maryland. Tire of farmer's car. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292047/photo-image-shadow-plant-airplaneFree Image from public domain licenseMiddle River, a small crossroads in the vicinity of Baltimore, Maryland. FSA (Farm Security Administration) housing project… https://www.rawpixel.com/image/12294938/photo-image-plant-person-treeFree Image from public domain licenseWorking on the intricate job of fitting the engine to the fuselage of a plane at The Vought Sikorsky Aircraft Corporation.… https://www.rawpixel.com/image/12277657/photo-image-person-plane-technologyFree Image from public domain licenseMohair being fed into scouring tubs at wool and mohair scouring plant. San Marcos, Texas by Russell Lee https://www.rawpixel.com/image/12147924/image-plant-person-artFree Image from public domain license[Untitled photo, possibly related to: Montgomery County, Maryland. Tire of farmer's car]. Sourced from the Library of… https://www.rawpixel.com/image/12292021/photo-image-airplane-public-domain-circleFree Image from public domain licenseWorkers in oil field, Marion County, Illinois. Sourced from the Library of Congress. https://www.rawpixel.com/image/12252435/photo-image-people-sky-airplaneFree Image from public domain license[Untitled photo, possibly related to: Boeing aircraft plant, Seattle, Washington. Production of B-17F (Flying Fortress)… https://www.rawpixel.com/image/12296869/photo-image-plant-sky-planesFree Image from public domain licenseAircraft motor casings at the Pratt and Whitney Aircraft Corporation. East Hartford, Connecticut. Sourced from the Library… https://www.rawpixel.com/image/12279062/photo-image-background-person-patternFree Image from public domain licenseCompleted drilling machine. Keystone drilling machine. Keystone Drilling Company, Beaver Falls, Pennsylvania. Sourced from… https://www.rawpixel.com/image/12284673/photo-image-person-airplane-public-domainFree Image from public domain licenseNashville, Tennessee. Vultee Aircraft Company. Working on the landing gear of a bomber. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288048/photo-image-person-technology-factoryFree Image from public domain licenseLititz, Pennsylvania. Mr. O.K. Bushong, express agent (left), supervising the loading of old tires to be shipped to… https://www.rawpixel.com/image/12291511/photo-image-person-airplane-public-domainFree Image from public domain license[Untitled photo, possibly related to: Detroit, Michigan (vicinity). Chrysler Corporation Dodge truck plant. Dodge Army… https://www.rawpixel.com/image/12288803/photo-image-plant-person-airplaneFree Image from public domain licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Shaft alley stockpile. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293111/photo-image-art-airplane-public-domainFree Image from public domain licenseFarmer examines new corn picker. Iowa State Fair, Des Moines, Iowa. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272971/photo-image-person-airplane-public-domainFree Image from public domain license