AFTERBODY SECTION OF AIR-DYNAMIC STEERING GEARS FOR CONTROLLED AIRCRAFTS (PREFERABLY FOR CONTROLLED AERIAL BOMBS) AND AIR ACTUATOR OF STEERING GEAR Russian patent published in 2011 - IPC F42B25/00 F15B15/00 

FIELD: weapons and ammunition.

SUBSTANCE: afterbody section comprises a body with empennage in the form of stabilisers with hinged steering wheels. Each stabiliser is equipped with an end plate fixed on it, at the lateral chord side it is arranged with a profiled ledge, installed in the longitudinal slot of the vessel, and is fixed by a helical joint into brackets rigidly joined to the vessel, which are arranged at two sides and along the longitudinal slot of the afterbody section vessel. At the same time an air intake and an air exhaust device are formed by channels arranged accordingly at the front and bottom end of the end plate, an air control valve is fixed to the stabiliser at the side of its end chord in the cavity that communicates to the air exhaust device through a hole in the end plate. The air actuator is placed in the through hole of the central part of the stabiliser sealed with covers. The air actuator of the steering gear comprises a base, the internal cavity of which is separated with membranes into working chambers, and a piston interacting with membranes. The piston is arranged in the form of a profiled plate arranged in the through window of the base and fixed at one side on a shaft installed in the base, and working chambers are formed between membranes arranged at both sides of the piston and fixing them to the base by the covers, which at the side of membranes are arranged with grooves, which follow the base window along the perimetre. Each of membranes is arranged with a corrugation, which is horseshoe-shaped in plan, the external contour of which matches the contour of the base through window, and the internal one - the piston contour.

EFFECT: elimination of afterbody section design and improvement of performance characteristics of the bomb.

2 cl, 4 dwg