The aircraft was tested for low speed handling on 5 July.

The aircraft was tested between October 1938 and May 1939.

After only two aircraft were built and tested, the project was abandoned.

With 50 hp, the aircraft was tested, but may never have flown.

When the aircraft was first tested, it had many issues.

Block 10, 20 and 30 aircraft have been tested by the squadron.

At Guidonia, the aircraft was tested like the many other fighters present for evaluation.

The aircraft was tested and after some flights was destroyed.

The aircraft was built and tested before delivery to the customer.

These aircraft were tested by Lufthansa and used briefly in the postal service.