sentences:  Furthermore, the aircraft was offered as a twin-float seaplane, the "Do 27S-1"; another model proposed was furnished with the larger Lycoming GSO-480-B1B6 engine, capable of generating a maximum of 254 kW/340 hp, which was matched with a three-blade propeller, the "Do 27H-2".In addition to the aircraft's adoption by military operators in Germany and Spain, Portugal received 40 new-build and 106 ex-German Do 27s.The Portuguese Air Force made extensively use of the type during the colonial war in Portuguese Africa throughout the 1960s and 1970s.