The Course Setting Bomb Sight (CSBS) is the canonical "vector" bombsight, the first practical system for properly accounting for the effects of wind during the dropping of bombs. It is also widely referred to as the Wimperis sight after its inventor, Harry Wimperis. After the war the design found widespread use around the world, and was used well into World War II. It was eventually replaced in British service by the more advanced designs like the Mark XIV bomb sight and the Stabilized Automatic Bomb Sight. Other services used vector bombsights throughout the war.