08/31/2021. Remarks by Johan Visschedijk: "The first production P-6E was returned to the factory for installation of new wings fitted with four 0.30 in (7.62 mm) guns. These increased the gross weight to 3,858 lb (1,750 kg) and reduced the top speed to 190 mph (305.77 kmh). Redesignated XP-6H, the aircraft was delivered on April 20, 1933. The special wings were later removed and the aircraft was reverted to the standard P-6E configuration."