Surviving aircraft in 1948 were re-engined with Walter Minor 6.III inline engines due to difficulty in procuring spares and the poor condition of the Siemens-Halske engines.[1]
DAR 9 production consisted of the series 1, which was built at the DAR factory and which carried the construction numbers 88 to 93 and Series 2 to Series 5, built at the DSF factory and which carried construction numbers 95 to 130.[1]
Operational history
The DAR 9s were used for training at the Kazanlak Air School until at least 1949. Nine surplus DAR 9s were transferred to the Yugoslavian Air Force in 1947, withdrawn from service by 1958.[1] One DAR 9 is preserved at the Technicki Muzej, Zagreb, Croatia.
Variants
DAR 9
Initial designation of the Sh-14-powered aircraft.[1]
Bernád, Dénes (July–August 2001). "Balkan Birds: Thirty-Five Years of Bulgarian Aircraft Production, Part One". Air Enthusiast (94): 18–30. ISSN0143-5450.
Insignia Issue 9 August 1998 pp26–31
Wings of Fame Vol.13
Gunston, Bill (1993). World Encyclopedia of Aircraft Manufacturers. Annapolis: Naval Institute Press. p. 89.
World Aircraft Information Files. London: Bright Star Publishing. pp. File 891 Sheet 56.