During World War I, airplanes were still very new! Most had two wings and were called biplanes, but a few special ones had three wings — these were called triplanes.
The extra wing helped them turn quickly and fly higher, almost like a bird swooping through the clouds.
One of the most famous triplanes was the Fokker Dr.I, flown by a German pilot nicknamed the Red Baron. His bright red plane became famous for its daring flights and quick moves in the sky.
British pilots had their own brave planes too, like the Sopwith Camel, which could twist and turn fast to chase enemies.
Triplanes were made of wood and canvas, not metal, and pilots sat in tiny open seats with goggles and scarves to keep warm.
Even though they look simple today, these planes helped people learn how to build faster, safer airplanes for the future.
