A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings.
Low wing on a Supermarine Spitfire
Mid wing on a de Havilland Vampire T11
High wing on a de Havilland Canada Dash 8
Parasol wing on a Consolidated PBY Catalina
The Consolidated Model 28, more commonly known as the PBY Catalina, is an American flying boat and amphibious aircraft designed by Consolidated Aircraft in the 1930s and 1940s. In U.S. Army service, i
Monoplane
…interwar period was popular on flying boats, which need to lift the propellers clear of spray. Examples include the Martin M-130, Dornier Do 18 and the Consolidated PBY Catalina. Compared to a biplane, a parasol wing has less bracing and lower drag. It remains a popular configuration for amphibians and small homebuilt and…
A Canadian built Canso A representing a United States Army Air Forces OA-10 operated in the UK.
PBY waist gunner mounting port side gun blister (1942)
Two technicians servicing the Twin Wasp engine of a Catalina, August 1942
A radar-equipped PBY-5A from VP-6(CG) over Greenland, in 1945