11. All versions were twin engined , with top speeds of 45 / 50 knots depending on engine choice. 12. The 5, 499 miles ( 8, 798 km ) flown non-stop constitute a record for twin engined airliners. 13. The title'Aircraft 160'was used previously by Lavochkin for a'Heavy'twin engined fighter to be produced concurrently with Aircraft 150. 14. The aircraft were replaced by French-built Hurel-Dubois HD . 34 twin engined survey aircraft in the late 1950s. 15. The main campus features 28 aircraft, both single and twin engined , and a hangar next to a classroom building. 16. In the USA, V-twin engined -motorcycles with capacities of 850 cc or more have been the norm since the 1920s. 17. On 1 February 1945, the unit was redesignated as the "'32d Fighter Squadron ( Twin Engined ) " '. 18. In April 1954 the squadron re-equipped with its first jet powered aircraft type, the English Electric Canberra twin engined light bomber. 19. The original " H " Class design of 1919 was for a twin engined airship of approximately 80, 000 cubic feet volume. 20. In 1944, the group converted from medium, twin engined B-25 Mitchell and B-26 marauder bombers to heavy four engined B-24 Liberator bombers.
