FIELD: thrust reversal units of turbojet engines. SUBSTANCE: device includes swivel doors integrated into outer wall of engine nacelle during operation in mode of forward thrust and forming obstruction for deflection of gaseous flow during reversing. Each front parts (in way of flow) of swivel door is duplicated on its inner surface by means of front (in way of flow) panel, thus smoothing-out gas flow during operation of this device in forwards thrust mode. This front panel kept by at least one lever. Front panel may be also kept by at least one set of front and rear levers (in way of flow) articulated with points of immovable structure on one side and with points of panel on other side; it may be set in motion irrespective of swivel door by means of at least one power cylinder secured on immovable structure of thrust reversal unit. Front panel may be also kept by means of set of front and rear power cylinders which are secured on immovable structure of thrust reversal unit and are used to set panel in motion irrespective of swivel door. EFFECT: enhanced reliability and safe functioning; reduced mass. 11 cl, 20 dwg
