It was used as a military trainer by several countries.

Today, it is used as a trainer in other air forces.

It was used as a trainer until 22 June 1915.

After the summer of 1917 it was mostly used as a trainer.

The last Ki-57 was used as a trainer and retired in 1952.

They were used as primary trainers from 1939 to 1945.

The type continued in limited service after the war, eventually being used as a trainer until about 1919.

A total of 28 were built, being mainly used as trainers.

It was intended for civilian use, but ended up being used as a military trainer.

Some, used as trainers, were still in service in 1939.