Editing Douglas DC-3 (section)

===Civil===
;DST
:Douglas Sleeper Transport; the initial variant with two {{convert|1000|-|1200|hp|kW|adj=on}} [[Wright R-1820 Cyclone]] engines and standard sleeper accommodation for up to 16 with small upper windows, convertible to carry up to 24 day passengers.<ref>[https://books.google.com/books?id=QdsDAAAAMBAJ&dq=Popular+Science+1935+plane+%22Popular+Mechanics%22&pg=PA23 "Sleeping Car of the Air Has Sixteen Sleeping Berths"]. ''Popular Mechanics'', January 1936.</ref>
;DST-A
:DST with {{cvt|1000|-|1200|hp}} [[Pratt & Whitney R-1830 Twin Wasp]] engines
;DC-3
:Initial non-sleeper variant; with 21 day-passenger seats, {{cvt|1000|-|1200|hp}} Wright R-1820 Cyclone engines, no upper windows.
;DC-3A
:DC-3 with {{cvt|1000|-|1200|hp}} Pratt & Whitney R-1830 Twin Wasp engines.
;DC-3B
:Version of DC-3 for TWA, with two {{cvt|1100|-|1200|hp}} Wright R-1820 Cyclone engines and smaller convertible sleeper cabin forward with fewer upper windows than DST.
;{{Visible anchor|DC-3C}}
[[File:TransNorthern DC-3 landing at ANC.jpg|thumb|[[TransNorthern]] Super DC-3 (C-117D) in [[Anchorage, Alaska]]]]
:Designation for ex-military C-47, C-53, and R4D aircraft rebuilt by Douglas Aircraft in 1946, given new manufacturer numbers, and sold on the civil market; Pratt & Whitney R-1830 engines.<ref>[http://www.douglasdc3.com/faa/a-669.pdf "Aircraft Specifications NO. A-669"]. [[FAA]]. Retrieved October 20, 2011.</ref>
;DC-3D
:Designation for 28 new aircraft completed by Douglas in 1946 with unused components from the cancelled USAAF C-117 production line; Pratt & Whitney R-1830 engines.<ref>Gradidge 2006, pp. 632–633.</ref>
;{{visible anchor|DC-3S}}
:Also known as Super DC-3, substantially redesigned DC-3 with fuselage lengthened by {{convert|39|in|m|1}}; outer wings of a different shape with squared-off wingtips and shorter span; distinctive taller rectangular tail; and fitted with more powerful [[Pratt & Whitney R-2000]] or {{cvt|1475|hp}} Wright R-1820 Cyclone engines. Five completed by Douglas for civil use using existing surplus secondhand airframes.<ref>Gradidge, 2006, p. 634.</ref> Three Super DC-3s were operated by Capital Airlines 1950–1952.<ref>Pearcy, Arthur ''Douglas Propliners DC-1 – DC-7'', Shrewsbury, England: Airlife Publishing Ltd., 1995, {{ISBN|1-8531026-1-X}}, pp. 93–95.</ref> Designation also used for examples of the 100 R4Ds that had been converted by Douglas to this standard for the U.S. Navy as R4D-8s (later designated C-117Ds), all fitted with more powerful Wright R-1820 Cyclone engines, some of which entered civil use after retirement from military service.<ref>Gradidge 2006, pp. 634–639.</ref>