PASSENGER AEROPLANE OF TRIPLANE CONFIGURATION Russian patent published in 1999 - IPC

FIELD: aviation; passenger and transport aeroplanes. SUBSTANCE: aeroplane has elongated fuselage with ellipsoid cross section, wing with high-lift and control devices mounted in center fuselage by low-wing monoplane configuration, nose horizontal plane with flaps, horizontal tail unit with elevator and rear fin with rudder. Engines are mounted on wing. Aeroplane is provided with front fin with rudder secured on nose fuselage. Nose horizontal plane is secured on end face of front fin by T-shaped configuration; cross section of fuselage has form of ellipse whose larger axis is located horizontally. EFFECT: reduction of stresses in fuselage due to optimal distribution of lift force lengthwise and reduction of bending moment in flight in case of derangement of one engine. 6 cl, 5 dwg