The Bell P-39Q "Airacobra"

The P-39's most famous contribution to history is in its role
a primarily a Lend-Lease aircraft to the Soviet Union.  Over
4,900 of the Q-model were built, the majority going to
Russia.  Although slow, it was heavily armed, and some Soviet
pilots preferred it for that reason.  It had a 37mm gun
firing through the propeller hub, with (in the Q model) 2 x
.50 cal MG in the upper cowling, and 2 x .50 cal MG in small
fairings, one on each wing.  The design was unique for
several reasons:  one of which being the tricycle landing
gear, and the other being the mid-fuselage engine.  The
engine was behind the pilot, helping to protect it.  It was a
little slow, and not extremely maneuverable.  This mod uses a
Hawker Hurricane for the exterior, a FW190 cockpit with P51
wing panels.

The P-39 could also carry a single 500 pound bomb beneath the
fuselage, or a 75 gallon droptank.