This is an injection-plastic aircraft model kit.
From the manufacturer description:
There are a thousand models of the P-51, but this isn't just a model. It's a full, scale technical layout of a P-51 complete with working components like a motorized prop, working landing gear, and droppable bombs. Go beneath the duralumin skin. See the engines, machine guns, and intricate design that helped the Allies win the war. Kit features all clear body panels, full interior details, motorized prop/landing gear, and display stand with bomb drop controls.
Power with two standard size "D" batteries (not included).