File:Supermarine P.B.31E Nighthawk Quadruplane.jpg

Summary
World War I aircraft with 4 wings and biplane tailplane. The cockpit was enclosed and heated. It was a slow plane and could not climb very fast, which made it unreliable for it to function as an anti-zeppelin fighter.

Role: Anti-Zeppelin Fighter National origin: United Kingdom Manufacturer: Supermarine First flight: 1917 Status: Prototype only Number built: 1 Developed from: Pemberton Billing P.B.29E This image is in the public domain because its copyright has expired. This applies to Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.