7. The Douglas C-47 Skytrain
Military aircraft were vital to the WWII war effort, and the Douglas C-47 Skytrain (designated as the “Dakota” by the Royal Air Force) was an aircraft model used consistently by the Allies. In fact, these models continue to be in front-line service to this day. The Allied campaigns in Guadalcanal, as well as in the Burmese and New Guinea jungles, swore by these aircraft, as the planes helped them to counter strike against the lighter-traveling mobility of the Japanese army. The C-47s were generally used in paratrooper operations but were also used to haul supplies and fuel to the front lines.
With its major modifications being a reinforced fuselage floor and an addition of a large cargo door, this supply plane could carry up to 6,000 pounds of cargo and hold a fully assembled jeep or a 37 mm cannon. When used for troop transport, it could carry 28 soldiers in full combat gear, and when used as a medical airlift plane, it could accommodate 14 stretcher patients and three nurses.