The 1:200 scale is a modeling scale used in the model building hobby. A vehicle or building made in the 1:200 scale, fits 200 times inside its real-life counterpart.
A large percentage of models produced in this scale are aircraft models. Companies such as Hasegawa distribute 1:200 scale-sized airliners and military aircraft. Flight Miniatures also produces many airliner and military aircraft models in the scale, both die cast and plastic ones.
Ships are also sometimes available in this scale.
A bit less popular, but comparable in size, is the 1:250 scale.