One of the first two military aircraft in Sweden, the other one being a Nieuport. The Breguet was known as B1 in Sweden. They were based in Axvall, at an army exercise range and 1913 the first airfield was established in Malmen. In 1915, the Breguet was involved in an accident and could not be repaired. In 1977, a group beloning to the Swedish Flight-historical society decided to build this replica. The engine, tail assembly and radiator were taken from the original aircraft. In 1989, when the project was finished, the aircraft was handed over to the Flygvapenmuseum.

The Bréguet C.U 1 was advanced for its time had been a great success at the military air competitions in Reims. The Swedish Army bought and imported the plane and gave it the designation B 1 (for biplane No.1). They also bought a Nieuport M1 intending to compare the two types prior to any order. However, the B 1 suffered many problems and was quickly discarded. In 1977 the Swedish Aviation History Society decided to built this copy using many original parts, including the tail section. It is now on display at this museum.

This Breguet U-III was the first biplane in Swedish service, hence its serial B1 (biplane 1).