Built to meet the requirements of the French Navy, it was ordered into production but no aircraft were delivered before France surrendered to Germany in June 1940.

Four remaining incomplete airframes were completed after the end of World War II, serving with the French Navy until 1954.

It was restarted by the Vichy government, with the wing of the wrecked prototype being combined with the hull of the first production machine to produce the Br.

Production of the remaining 11 aircraft continued extremely slowly under German occupation, with eight being destroyed in an Allied air raid on 6 April 1944.

This aircraft, named Véga, was delivered to the French Navy, who used it as a long-range transport in April 1945,[2] with a second Br.730 (Sirius) completed in May 1946.