Back Doppelleitwerksträger German Aeronave de doble cola Spanish Avion bipoutre French 双胴機 Japanese Samolot dwubelkowy Polish Двухбалочный самолёт Russian Twin-boom letalo Slovenian Dubbel stjärtbom Swedish Двобалковий літак Ukrainian
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A twin-boom aircraft has two longitudinal auxiliary booms. These may contain ancillary items such as fuel tanks and/or provide a supporting structure for other items. Typically, twin tailbooms support the tail surfaces, although on some types such as the Rutan Model 72 Grizzly the booms run forward of the wing. The twin-boom configuration is distinct from twin-fuselage designs in that it retains a central fuselage.