They were used operationally in the Philippines, primarily to carry supplies.

Only a few 695s were operationally used before the armistice.

It is unlikely that this arrangement was ever used operationally.

It was one of the first advanced computing devices to be used operationally.

Rose turrets began to be used operationally from late 1944.

The first tests were conducted in 1940, but it was not used operationally until 1944, with U-480.

There is no evidence that they were used operationally.

The spokesman added however that the system has not yet been used operationally.

They were not used operationally and the design was not developed further.

It was the first hyperbolic navigation system to be used operationally.