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TsAGI Science Journal

ISSN Печать: 1948-2590
ISSN Онлайн: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2019030595
pages 115-132

EXPERIMENTAL INVESTIGATIONS OF EXTERNALLY BLOWN FLAP EFFICIENCY ON THE MODEL OF SHORT TAKEOFF AND LANDING TWIN-ENGINE TRANSPORT AIRCRAFT

Albert Vasilievich Petrov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region
Evgeny Alexandrovich Pigusov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation

Краткое описание

The results of experimental investigations of a model of short takeoff and landing (MSTOL) of a twin-engine medium transport aircraft with externally blown flaps by jets of ejector simulators of ultra-high bypass engines (M ≈ 16–18) in the TsAGI T-102 low-speed wind tunnel are presented. The principal features of the jet effect on the aerodynamic characteristics of the model in takeoff, landing, and cruising configurations are considered. The possibilities of active control of the aircraft aerodynamic characteristics using an adaptive element of high-lift devices in the form of a deflected wing trailing edge are shown. A comparative estimation of the aerodynamic characteristics of the MSTOL with two and four engines is carried out.

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