Complex sentence: Designed in the 1930's, the Flettner 184 was made to be a night reconnaissance and a anti-submarine autogyro It's designer Anton Flettner designed the Fl 184 to have a single, torqueless rotor.
Split into simpler sentences: Designed in the 1930's, the Flettner 184 was made to be a night reconnaissance and a anti-submarine autogyro. Its designer Anton Flettner designed the Fl 184 to have a single, torqueless rotor.