The Wright J-5 is a historic aircraft engine developed in the early 1920s by the Wright Aeronautical Corporation. It is a five-cylinder, air-cooled radial engine known for its reliability and performance, making it popular in various aircraft during its time. The J-5 produced around 220 horsepower and was widely used in military and civilian planes, including the famous Ford Trimotor. Its design contributed significantly to the advancement of aviation technology, paving the way for more powerful and efficient engines in the years that followed.