The Ministry of War ordered 25 aircraft on 10 January 1923 of this type from the
Fabrica de avioane Astra. The Astra Factory changed the wings on its own initiative, which reduced the strength of the wings, and during an early test flight, one of the wings broke and the aircraft crashed into the
Mureș river, killing the test pilot. After the accident, production of Proto 1 aircraft was halted and improvements were made to the design, after which Astra manufactured a new variant as the
Proto 2. ==Specifications==