RU2816334C1 - Method of delivering radio-hydroacoustic buoy by aircraft - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: invention relates to a method of delivering hydroacoustic buoys by an aircraft. For the delivery of the hydroacoustic buoy, it is dropped from the aircraft at the design point outside the zone of possible destruction of the aircraft by the anti-aircraft missile of the submarine, braking before landing with the help of a parachute, splashdown, inflating the float with gas, immersion of the buoy acoustic system to a given depth, activation of buoy acoustic system, examination of underwater space in a certain way, detection by acoustic system of submarine buoy and transmission of information on it via radio channel to aircraft, ship or coastal post.

EFFECT: higher safety of the aircraft delivering hydroacoustic buoy.

1 cl, 2 dwg

Description

The invention relates to methods for monitoring underwater space and searching for underwater objects.

There are three main types of search [1 - V.A. Abchuk, V.G. Suzdal. Search for objects. M., “Sov. radio", 1977. 336 p. with ill. P. 218]:

- on the square (in a given area);

- on the line (borderline);

- according to the detection of other forces (secondary search or on-call search).

A known search tool is a radiohydroacoustic buoy (RSB), which is a radio-technical device deployed into the sea by ships or dropped from an aircraft. It is designed to obtain data on the underwater environment using acoustic methods and subsequently transmit it via radio to a receiving device located on an aircraft, ship or coastal post. RSLs are mainly used to search for submarines, determine the bearing, distance to the target, parameters of its movement, as well as obtain data on the spectrum, intensity of underwater noise and acoustic fields of ships, vessels and other objects. According to the operating mode, RSLs are divided into passive, active and passive-active, non-directional and directional. Structurally, they consist of a housing with electronic units, an information transmitter, power supplies and supporting devices, as well as a hydrophone (acoustic system) buried on the cable. Passive non-directional RSLs determine the presence of noise, their spectral composition and intensity, while directional ones determine the bearing to the noise source. Active non-directional RSLs use the echo signal to determine the range to the target and its speed based on the Doppler frequency shift; active directional RSLs give the bearing and distance to the target. Passive-active directional RSLs operate in two modes. The detection range of a submarine using the RSL reaches 10-12 km or more, and the range of receiving information via a radio channel is 60-80 km [2 - Radio sonar buoy. Naval Dictionary/Ch. ed. V.N. Chernavin. M.: Voenizdat, 1989. - 511 p. P. 352].

There is a known method of using radio-acoustic buoys by an aircraft to search for a submarine, adopted as a prototype of the invention, which includes [2 - Radio-acoustic buoy. Naval Dictionary/Ch. ed. V.N. Chernavin. M.: Voenizdat, 1989. - 511 p. P. 352]:

- dropping a radio-acoustic buoy from an aircraft to a calculated (specified) point on the water surface,

- braking the buoy before splashdown using a parachute;

- splashing down the buoy, inflating the float with gas and immersing the buoy's acoustic system to a given depth;

- turning on the buoy's acoustic system and examining the underwater space;

- detection of a submarine by the buoy's acoustic system and transmission of information about it via a radio channel to an aircraft, ship or coastal post.

It is known that submarines are armed with anti-aircraft missiles designed to protect the submarine from attack by an aircraft [3 - E.A. Romanova, E.A. Chernyshov, A.D. Romanov. Development of submarine air defense systems. Nizhny Novgorod State Technical University named after. R.E. Alekseeva, Nizhny Novgorod. Modern high technology No. 12, 2014. pp. 227-231]. Therefore, if an aircraft approaches the location of a submarine at a dangerous distance, it can use an anti-aircraft missile to protect itself and hit the aircraft before it releases a sonar buoy. This circumstance indicates a drawback in the method of using radio-acoustic buoys by an aircraft, in which their splashdown points are in close proximity to the flight path of the aircraft, as a result of which it is forced to approach the submarine to the distance of its possible use of anti-aircraft missiles.

This drawback can be eliminated by the use of aircraft radio-hydroacoustic buoy-gliders, the splashdown points of which can be located at the required distance from the trajectory of the aircraft [4 - Patent for invention RU 2780519. Aviation radio-hydroacoustic buoy-glider. Authors: A.V. Novikov, A.A. Forostyany, V.V. Chikin, A.V. Shaldybin, A.K. Zharov. M.: FIPS, 2022, bulletin. No. 27, 11 p.].

The purpose of the invention is to develop a method for using radio-acoustic buoys by an aircraft, in which the aircraft delivers radio-acoustic buoys to the search area for a submarine without approaching it to the distance of possible use of an anti-aircraft missile.

To achieve this goal, a method of using radio sonobuoys by an aircraft is proposed, including:

dropping a radio-acoustic buoy from an aircraft at the design point,

braking the buoy before splashdown using a parachute,

splashing down the buoy, inflating the float with gas and immersing the buoy's acoustic system to a given depth,

turning on the buoy's acoustic system and examining the underwater space,

detection of a submarine buoy by an acoustic system and transmission of information about it via a radio channel to an aircraft, ship or coastal post,

characterized in that

use an aircraft radio-hydroacoustic buoy-glider,

the calculated release point of the aircraft radio-acoustic buoy-glider is located outside the zone of possible destruction of the aircraft by a submarine anti-aircraft missile,

in preparation for launch, a flight task is entered into the on-board control system of an aviation radio-acoustic buoy-glider,

after separating the buoy-glider from the aircraft, unfold its main wing, rudders and elevators into the working position and transfer the glider to horizontal flight mode,

control the flight of the glider using its on-board control system with the ability to connect a space navigation system to correct the trajectory,

Flight altitude is adjusted using an altimeter,

To inflate the float with gas, a non-return valve is used, through which counter-flow air is introduced into it during parachuting.

The implementation of the proposed method of using radio sonobuoys by an aircraft is shown in Fig. 1 and 2. The numbers indicate: 1 - aircraft, 2 - aviation radio-hydroacoustic buoy-glider; 3 - flight path of the aircraft; 4 - flight path of an aviation radio-acoustic buoy-glider; 5 - sea surface; 6 - calculated splashdown point of the hydroacoustic buoy; 7 - submarine; 8 - zone of possible destruction of an aircraft by a submarine anti-aircraft missile; 9 - flight path altitude of an aviation radio-acoustic buoy-glider; 10 - float; 11 - parachute; 12 - antenna; 13 - cable-rope connecting the body of the buoy-glider with the float; 14 - cable; 15 - hydrophone (receiver-emitter) of the acoustic system of the hydroacoustic buoy; 16 - the head part of the glider buoy, performing the function of a sinker; 17 - range of action of the acoustic system (hydrophone) of the buoy; 18 - detection area of a submarine by the buoy’s acoustic system; 19 - detection of a submarine by the acoustic system of a radio sonobuoy; 20 - radio communication line of the hydroacoustic buoy with the aircraft and control center.

The technical result of the invention is a method for using radio sonobuoys by an aircraft, ensuring the delivery of radio sono buoys to the submarine search area without the aircraft entering the zone of its possible destruction by an anti-aircraft missile.

Sources of information used to identify the invention and compile its description:

1. V.A. Abchuk, V.G. Suzdal. Search for objects. M., “Sov. radio", 1977. 336 p. strength P. 218.

2. Radio sonobuoy. Naval Dictionary/Ch. ed. V.N. Chernavin. M.: Voenizdat, 1989. - 511 p. P. 352.

3. E.A. Romanova, E.A. Chernyshov, A.D. Romanov. Development of submarine air defense systems. Nizhny Novgorod State Technical University named after. R.E. Alekseeva, Nizhny Novgorod. Modern high technology No. 12, 2014. pp. 227-231.

4. Patent for invention RU 2780519. Aviation radiohydroacoustic buoy-glider. Authors: A.V. Novikov, A.A. Forostyany, V.V. Chikin, A.V. Shaldybin, A.K. Zharov. M.: FIPS, 2022, bulletin. No. 27, 11 p.

Claims (1)

A method for delivering a radio-hydroacoustic buoy by an aircraft, including dropping the radio-hydroacoustic buoy from the aircraft at the design point, braking the buoy before splashdown using a parachute, splashing down the buoy, inflating the float with gas and immersing the buoy's acoustic system to a given depth, turning on the buoy's acoustic system and inspecting the underwater space, detection by an acoustic system of a submarine buoy and transmission of information about it via a radio channel to an aircraft, ship or coastal post, characterized in that they use an aircraft radio-hydroacoustic buoy-glider; the calculated release point of the aircraft radio-acoustic buoy-glider is located outside the zone of possible destruction of the aircraft by anti-aircraft submarine missile, in preparation for launch, a flight task is entered into the on-board control system of an aviation radio-acoustic buoy-glider, after separating the buoy-glider from the aircraft, its main wing, directional and elevator rudders are folded into the working position and the glider is transferred to horizontal flight mode, controlled the flight of the glider using its on-board control system with the ability to connect a space navigation system to correct the trajectory, the flight altitude is adjusted using an altimeter, a non-return valve is used to inflate the float with gas, through which counter-flow air is released into it during parachuting.