History: Manufactured at the Oberpafenhoffen Plant in Munich German on 2 June 1959 as SN (CN 391)as a Do27-B3. Retained at Dornier until delivery in Oct. 1959 HFInstKP 307 (HEERESFLIEGERINSTANTSETSUNGSKOMPANIE) Aviation Repair Company at Niedermendig and serialized as PL+425. Later served with HFst 301(renamed HFB 300 in 1962 and in 1971 HFB 301)as Serial PP+105…. More