P-6E HawkP 6E Hawk airplane model. The P 6E, a premier pursuit aircraft of the early 1930s, marked the end of the fighter biplane era with its mass production for the Army Air Corps. Initially known as the Y1P 22, it was reclassified as the P 6E due to its resemblance to other aircraft in the P 6 series. Though it never saw combat, it is celebrated as one of the most aesthetically pleasing biplanes ever constructed. However, due to the economic constraints of