sentences:  Finally, the first 200 Mareșals which were going to be built were set to follow the design of the M-05.It is for these reasons that the only reports of Mareșal usage after the creation of the M Battalion in May 1944 refer solely to the M-05, as the previous prototypes were most likely unfit for training crews which were expected to operate in the near future solely on M-05 copies.Testing of the M-05 continued until the project was terminated by the Soviets on 26 October.