RU2393420C2 - Towed air false target - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: towed air false target comprises shooting mark connected to aircraft by means of rope. Ring is installed in head part of shooting mark with the possibility of rotation relative to axis of shooting mark and a hole in the wall for free pulling of rope. It is wound in several layers on shooting mark body. Head part of shooting mark comprises coaxially installed composite flange made of two or more components with the possibility of release in the end of rope winding and fixed by rope in initial condition. Ring is arranged as composite from two or more components with the possibility of release. Components of ring are retained in initial condition by composite flange till the end of rope winding.

EFFECT: improved aerodynamics of shooting mark in mode of towed flight of the mark with preservation of stable motion of mark in process of rope winding after separation.

5 dwg

Description

The invention relates to the field of aviation technology and can be used as a towed false target when protecting the aircraft from homing missiles by re-targeting them to a false target towed at a certain distance from the aircraft.

A device [1] is known - a towed airborne target made in the form of a target connected by a rope to an aircraft, in the head and tail parts of which rings are mounted for rotation about the axis of the target, between which a cylindrical fairing is mounted coaxially and rigidly fixed to the rings rotation. There is a hole in the stack of the head part ring through which the end of the rope fixed on the aircraft is freely passed, and the rope itself is wound in several layers on the target body. For a free exit of a rope the fairing has a cutout in the end part.

The disadvantage of the described device [1] is the structural complexity and aerodynamically non-optimal location of the attachment point of the cable to the target in towing mode.

A device [2] (prototype) is known - a towed aerial false target containing a target connected by a rope to an aircraft. A ring is mounted in the head of the target for rotation about the axis of the target. A hole is made in the wall of the ring through which the end of the rope fixed on the aircraft is freely passed. The rope itself is wound in several layers on the target body.

The disadvantage of the described device [2] is towing a target on a rope fixed at a point at a considerable distance from the center of gravity of the target, which impairs the aerodynamics of the towed flight and increases the load on the rope.

The invention is aimed at improving the aerodynamics of a target in a towed flight mode while maintaining a steady motion of the target in the process of winding the rope after separation.

This is achieved by the fact that in the known device [2] a ring with an opening in the wall for free passage of the rope, mounted in the head of the target with the possibility of rotation relative to the axis of the target, is made of two or more component parts with the possibility of dropping the composite ring from the head of the target at the end of the rope winder.

The invention differs from the known closest analogue [2], which contains a target connected by a rope to an aircraft, in the head part of which a ring is mounted coaxially with the possibility of rotation about the axis of the target and a hole in the wall for free passage of the rope, and the rope is wound in several layers on the body targets, in that a composite flange of two or more component parts is coaxially mounted in the target head portion with the possibility of dropping at the end of the rope winding and fixed by the rope in the initial state and a ring with a hole in the wall and the possibility of rotation about the axis of the target is made of composite of two or more component parts with the possibility of dropping from the head of the target, while the component parts of the ring are held in the initial state by a composite flange until the end of the rope winding.

The set of essential features that distinguish the invention from the prototype [2], allows to improve the aerodynamics of the target in the mode of towed flight of the target while maintaining a steady motion of the target in the process of winding the rope after separation.

The invention is illustrated by drawings, where in Fig.1 shows a target with a wound rope; figure 2 - head compartment of the target, equipped with a composite ring and flange.

The described device contains: a composite ring (1/9) with an opening, consisting of constituent parts 1 and 9; composite flange (3/10), consisting of component parts 3 and 10; retaining balls 4; set of balls 2; rope 5; target body 6; node 7 and bearing 8.

The rope 5 is connected at one end to the target body 6 near the center of gravity and is wound on the body along the entire length in several layers. The second end of the rope 5 is freely passed through the "hole" in the wall of the composite ring (1/9) at the junction of the constituent parts 1 and 9 and is connected to the aircraft unit 7, for example, by means of a pyro-bolt. Composite ring 1/9 is mounted on bearing 8, and its constituent parts are held by a composite flange 3/10, fixed in the initial state by a wound rope 5 and locking balls 4. Balls 2 arranged with composite cages according to the principle of ball bearing and located between the ring and flange , provide retention and rotation of the composite ring relative to the composite flange.

A device mounted on an aircraft in a container or in another way, in accordance with the flight task, is separated from the aircraft by command from the aircraft and held on to the rope 5 using the node 7. The rope 5 is wound from the target body and passes freely through the hole of the composite ring (1 / 9), which is held by the flange (3/10) and rotates freely relative to the flange on the bearing 8. Locking balls 4 exclude the possibility of axial displacement of the flange, and the rope 5 keeps the composite flange (3/10) from disintegrating into its component parts 3 and 10 until the end of the winding. By the time the unwinding ends, the rope 5 releases the constituent parts of the flange, and the whole mechanism breaks up into separate structural elements, including the flange (3; 10), the ring (1; 9), and the lock balls 4; balls 2 and the elements of the separator and the target in a "pure" form, being held on the aircraft using the node 7, is towed for a predetermined time. At the end of the flight program, the target is dropped along with the rope.

Figure 3 shows a drawing of a towed false target in towing mode after winding the rope to a length L. The coordinates of the target suspension point on the rope can be selected in accordance with the aerodynamics of towed flight.

Figure 4 shows an example of the design of the composite ring (1/9), consisting of two parts. In practice, a ring with a hole in the wall is made as a single piece, followed by cutting this part into component parts 1 and 9 in diameter through the center of the hole. The drawing shows the constituent parts equipped with balls 2 and split separators 11.

Figure 5 shows an example of the design of a composite flange, consisting of two parts with a selection of locking balls (4 in figure 2). The manufacture of a composite flange (3; 10) is similar to the manufacture of a ring.

Studies of the winding process and the dumping of the constituent parts of the mechanism have confirmed the operability of the device.

Information sources

1. Description of the invention to the patent of the Russian Federation No. 2263275 F41j 9/10, Bull. No. 30 October 27, 2005.

2. Description of the invention to the patent of the Russian Federation No. 2206049 F41j 9/10 (Prototype). Bull. No. 16 June 10, 2003.

Claims (1)

A towed aerial false target containing a target connected by a rope to the aircraft, in the head of which there is a ring with the possibility of rotation about the axis of the target and a hole in the wall for free passage of the rope wound in several layers on the target body, characterized in that in the head part the target is coaxially mounted with a composite of two or more constituent parts, a flange with the possibility of dropping at the end of the rope winding and fixed by the rope in the initial state, and the ring is made of two or more of its constituent parts with the possibility of dropping, while the constituent parts of the ring are held in their original state by a composite flange until the end of the winding of the rope.

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