sentences:  The Do 27's precursor, the "Do 25", was developed by Dornier at the firm's facilities in Spain in order to satisfy a Spanish military requirement that called for a light utility aircraft with short takeoff and landing (STOL) performance.However, the Do 25 was not selected for production by Spain.Despite this, the aircraft was developed further to produce the Do 27, which was produced in quantity in both Spain and Germany.