This is pretty hard to say for sure. Since it basically has modified C-117 wings attached to C-47 fuselage
. It's a fire bomber for sure...big tank under the belly and traces of fire retartand (sp?) under the fuselage.
And then it has those turbo-props. There's several different modifications of DC-3/C-47 with turbo props...hard to come up with an exact type. Could be that some fire-bomber company has modified it and it's more or less one of a kind?
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1Wmaker1