Fokker F.I

The Fokker F.I (company designation V.5) was a prototype fighter triplane by the Fokker-Flugzeugwerke (Fokker Aircraft Company) during the First World War for the Imperial German Army's (Deutsches Heer) Imperial German Air Service (Luftstreitkäfte). An improved version of the V.4 prototype, three aircraft were built in 1917. One was destroyed during static load testing and two were shot down by Allied aircraft after their pilots scored many victories when they were sent to the Western Front for combat testing.

Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.