Permalink: http://www.boeingimages.com/archive/Model-221A-Monomail-Passenger-Cabin--Looking-Aft-2F3XC5FV5U6.htmlCopyright © Boeing. All Rights Reserved.View Photo/Video onlyConceptually similarBoeing Monomail on ApronBoeing Monomail CockpitVintage United Air Lines Model 221 MonomailModel 221A Monomail Loading PassengersModel 221A Monomail221A Monomail at Boeing Field HangarModel 221 MonomailMonomail on TarmacModel 200 Monomail Loading CargoView AllView more with similar tones Model 221A Monomail Passenger Cabin, Looking AftBuy A Print or License This PhotoWhat Type of Order?Usage:The Boeing Monomail, designed initially to carry cargo and mail, was one of the most revolutionary airplanes in commercial aviation history. Two were built: the Model 200 mail plane and the Model 221 six-passenger transport. Both subsequently were revised for transcontinental passenger service and became Model 221As. The Monomail achieved major performance increases not by the addition of brute horsepower, but by structural and aerodynamic refinements. Air resistance was reduced by the Monomail's smooth, all-metal construction; cantilevered (that is, without struts), low-wing design; and the anti-drag cowling over the air-cooled Hornet engine. Retracting the wheels into the wing during flight further improved the mail plane's aerodynamics.BI210530 (4922b)Maximum size:5000px × 5800px (~82 MB)16.6in × 19.3in (300dpi)License type:Rights ManagedKeywords:1930s-airplanes-comfort-commercial-commercial passenger planes-day-grid patterns-historic production status-interiors-lookback views-luxury-mail planes-Monomail-Monomail Model 221A-monoplanes-passenger cabins-payload systems-perspective lines-photos-propeller planes-seats-sunshine-symmetryRelated Photo/Videos:View AllRelated Virtual folders:Monomail 221
