The Bell P-39 Airacobra was one of the most unconventional American fighters of World War II, distinguished by its engine mounted behind the pilot and driving the propeller via an extension shaft, along with tricycle landing gear -- both rare features for fighters of its era. Though its performance at high altitude limited its use in the European air war, the P-39 served with distinction at low and medium altitudes, most notably with Soviet VVS units on the Eastern Front and in early Pacific campaigns. This factory or squadron record photograph documents the type's distinctive silhouette and markings. Project: 218470