The Junkers Ju 390 was a German long-range derivative of the Junkers Ju 290 aircraft, intended to be used as a heavy transport aircraft, maritime patrol aircraft and long-range bomber. It was one of the aircraft designs submitted for the abortive Amerikabomber project, along with the Messerschmitt Me 264, the Focke-Wulf Ta 400 and the Heinkel He 277. Characteristics: Maximum speed: 505 km/h (314 mph, 273 kn) at 6,200 m (20,340 ft) Cruise speed: 357 km/h (222 mph, 193 kn) at 2,500 m (8,200 ft) Range: 8,000 km (4,970 mi, 4,320 nmi) Ju 390 V1 with 10,000 kg (22,046 lb) payload and 34,096 L (9,007 gal; 7,500 imp gal) fuel at 330 km/h (210 mph; 180 kn) and 2,000 m (6,500 ft) Combat range: 9,704 km (6,030 mi, 5,240 nmi) (reconnaissance mission) Combat range (bomber mission): 9,254 km (5,750 mi; 4,997 nmi) with 1,930 kg (4,255 lb) bomb load Source: Wikipedia
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