jet178MQM-178 Firejet orders. The MQM-178 Firejet target was used by QinetiQ in the Formidable Shield 2017 international naval exercise organisedThe Heinkel He 178 was an experimental aircraft desned and produced by the German aircraft manufacturer Heinkel.It was the world's first aircraft to fly using the thrust from a turbojet engine.. The He 178 was developed to test the