Model Variants (Including Prototypes)
CW-20T - Twin-Finned Prototype Model
CW-20A - Converted from the CW-20T Prototype Model; revised tail unit now featured single rudder fin assembly; flattened tailplane halves.
C-55 - US Army Air Corps evaluation designation of the CW-20A model.
CW-20B - US Army Air Corps militarized order production model of the CW-20A/C-55 evaluation model; redesignated to the C-46.
C-46 - Curtiss Model CW-20B based on the CW-20B.
C-46A - Improved and definitive C-46 model; 1,493 produced; fitted with R-2800-51 radial engines; reinforced fuselage flooring; accommodations for up to 50 troops; large port-side loading/unloading door.
XC-46B - Stepped windshield
XC-46C - Became C-46G, then XC-113
C-46D - Improved C-46A; troop transport; double-door model with modified nose assembly.
C-46E - Single Door Model; 17 produced.
C-46F - Improved C-46A; utility transport; 234 produced.
C-46G - XC-46C model
XC-113 - C-46G model
R5C - United States Navy Model
R5C-1 - United States Marine Corps Model; 160 produced.