Built by Bell Aircraft, the P-39Q Airacobra remains one of the more interesting and innovative fighter designs to come out of World War II. With its engine-mounted midship, tricycle landing gear, and 37mm cannon firing through the center of the propeller, it promised to be an effective platform. However, the absence of a turbo-supercharger limited its high-altitude performance, relegating it to low-level missions. Many Airacobras were sent to the Soviet Union under the Lend-Lease program, where they performed very well.