Albert V. Safronov

Chapter from the book "Vortices in harness"

On the basis of passenger vehicle "Screen-30" was made more detailed study of police patrol boats destined to patrol and protect the economic zones in coastal areas of South-East region.

Appointment

Among the tasks were:

1) The patrol and police services on the go and drift in the designated areas, maintaining the established customs regime, the suppression of violations of customs rules, the fight against smuggling and piracy, the implementation of customs control of vessels.

2) Collect data on the situation in the area patrolled by using airborne observations and external sources of information, notification of traffic on the area patrolled.

3) Perform tasks in conjunction with maritime border forces to maintain operational regime in a given area.

4) The detention of violators of the customs regime

5) Seizure of contraband goods and drugs.

The basic tactical and technical requirements

Aerohydrodynamic layout (AGDK).

In this technical proposal based schemes aerodynamic layout boats laid a fundamentally new, patented in Russia, circuit apparatus with air vortices, which provides high efficiency, combined with high speed and amphibious, all modes of traffic (both small and at a cruising speed .)

High efficiency due to the fact that to create a force to maintain motion and "on foot" used air eddies, in which the kinetic energy imparted to particles of air, is used repeatedly.

This scheme was tested on bench AGDK and towed models, tests are conducted on gas-dynamic stand and water channels in the JSC "Central Design Bureau for the SEC to them, REAlekseev.

Tests confirmed the theory predicted the high cost of lift creation, and high quality propulsion apparatus of the scheme.

On bench models, the so-called "quality of blowing", ie ratio of weight to pull the nozzle model (screw the fan), the feed air into the vortex tube was 18-20 units and towed to the model - about 24 units, against 8.10 units in the traditional blowing from the front.

In the proposed scheme is applied AGDK rear power unit, as is to be used turboprop aircraft TV7-117S maximum output of 2440 hp, equipped with BTI blade propeller diameter of 3.6 meters, the thrust of which is used for movement and for generate lift. For this part of the air screw is selected and fed into the vortex tube.

Vortices have opposite rotation and provide as creating a higher pressure underneath the machine and its hold on the sides.

In the bow and stern of the hull to prevent the expiration of air from under the bottom plates are installed. Shields has an axial aerodynamic compensation that provides the minimum force necessary to deflect shields when dealing with a wave or roughness.

To ensure the manageability of the exchange rate for the propeller and the ring nozzle mounted vertically two rudder with axial compensation for the reduction of the control points.

For a propeller at the bottom of the annular nozzle is provided with adjustable air intake valves for controlling the flow of air supplied to the vortex tube.

The upper section is made of profiled to provide additional lift at cruising speed. With the same purpose in the central tower of the unit, designed for the suspension of missile weapons, has a longitudinal section of the wing profile.

Tactical and technical elements of the shipbuilding items

The choice of the main dimensions of boats was made based on the following basic requirements:

1) To ensure optimal loading layout Aerohydrodynamic adopted the motion on the transient and cruise modes;

2) Use as a main power plant aviation turboprop TV7-117S with an annular nozzle;

3) Provide the necessary and amphibious seaworthy in all modes of traffic;

4) Placement of the necessary facilities and weapons;

5) Provision of necessary living and comfort.

As a result, the light of experimental studies, the layout, the following principal dimensions (in meters):

Elements Aerohydrodynamic build boats swirl "Twister" are characterized by the following relations:

Performance Specifications

Unit compartment housing

The bow of the body (ribs 1 through 6) placed the crew cabin. From the sixth to 14 mn. located room (salon) for Boarding Party, equipped with six air tourist class seats, arranged symmetrically on the sides of the cabin.

The cabin has shelves for personal belongings of the party.

In the middle of the hull (shp.14-22) is located premises for detained offenders, equipped with benches along the sides. Located under the benches diving equipment.

Depending on the version used artillery in the middle of the chassis can be mounted or artillery system "blade" with a gun turret installed HP-30 and the sighting and observation complex, or two guns with a caliber 30 mm 2A42, which will be mounted on the turret, placed vertically on the sides housing in the area of ​​the frame 20.

In the same middle of the hull, the tent is a pylon with a uniform beam for the suspension of missile weapons.

On the internal suspension can be fitted with two containers of rockets caliber 80 mm (20 pcs.).

On the external air suspension set controlled anti-tank missiles (ATGM) of the "Whirlwind" - 6 pieces on the board.

To reduce the drawdown of rockets at the opening of locks during start-ups, missiles fitted with a positive angle of attack to the oncoming flow.

Location of missile and artillery weapons in the middle of the hull, near the center of gravity, ensures the preservation of the center of mass of boats when the weight of consumable goods (rockets and missiles).

Fuel tanks with self-sealing latex protector also installed in the center of mass, symmetrically on the sides of boats, manned outside the bay.

In the rear of the hull (shp.22-29) is the cargo compartment for storage of confiscated during the inspection of the property. It also houses the doors on both sides.

At the entrance to the cargo hold is placed an inflatable life raft PSN-20AK on 20 people, providing rescue crew, Boarding Party, and arrested the perpetrators.

In the aft part of the inhabited shell (shp.29-32) located toilet, equipped with air sanitation facilities.

For the toilet, in the frames 32-40, outside the habitable housing is the main power plant, which includes aviation turboprop TV7-117S is equipped with a screw diameter shestilopastnym 3.6 m, and an annular nozzle, which provides protection against splashes and propeller damage , increase the propeller thrust at low and medium speeds, and noise reduction.

In the same area, with the propeller located air intake for supplying air to swirl pillow. At the top of the annular nozzle is installed radar antenna NRLS "Dawn", is protected by radio waves fairing.In the same antenna is a satellite navigation system GP-70.

In the setup, a single cannon 2A42, the latter is placed in the bow of the hull, over the premises for the Boarding Party.

This version of the weapons: a gun 2A42, twelve anti-tank "Whirlwind" and forty-NUR caliber 80 mm, is a major decision and provides the majority of problems.

Armament

Arming patrol and police boats to swirl basically identical to armed combat army helicopter "Kamov-50," received the name "Black Shark".

In the central part of the hull of the boat, near the center of mass, provides a streamlined pylon bearing on which are mounted four racks that can be placed various types of weapons to the total mass of 2000kg.

On board, the bow of the hull provides for installation of 30 mm mobile gun mount capable of accurately hitting as armored vehicles and aerial targets.

The basis of the combat power of anti-tank guided boat missile weapons, including supersonic anti-tank missiles "Whirlwind" with a range of start-up to 10 km. Combined warhead supersonic missile equipped with multiple fuses of different actions. In combination with high-noise-guidance system that allows effective engagement of the same type of ammunition as the armored (up to 90 mm with ERA) surface and ground targets, and moving at speeds up to 800 km / h airborne targets.

The missile has a high reserve of the enemy was attacking only know about at the moment of impact.

This weapon of destruction has excess energy, which is used to strengthen its fighting qualities. A large series of pilot launches confirmed the superiority of the automatic guided missile on target. It allows you to hit small objects at a maximum distance is much more efficient than when manually pointing the operator.

A powerful gun mount 30 mm is taken in the Army and fully unified with ammunition used by infantry fighting vehicle BMP-2.

2A42 cannon has a variable rate of fire and selective feeding of the two ammunition boxes filled with armor-piercing and high-explosive shells. This allows 30% more effective destruction of targets. Combat survivability barrel can shoot just to make ammunition (500 rounds) without delay and intercooling. Electro-hydraulic servo actuator moves the stem in the horizontal and vertical planes, keeping the line of fire.

There are various options for weapons with a 4-node external load without changing the design of algorithms and weapons control system. To ensure high accuracy of airborne weapons control system provides automatic weapons

At the same time in the boat can be found the following weapons:

Depending on the task at a police patrol boat "Tornado" can be set as an artillery system "Blade" with air gun HP-30 and the sighting and observation complex, or a grenade launcher AGS-17 with a range of about 1,500 m.

The kit includes small arms boats and two 12.7 mm machine gun and two machine guns caliber of 7.6 mm, which can be used for shooting from the windows of boats, which in the past will provide special support slot.

To defend against missiles with a variety of homing in the boat is equipped with two symmetrical block release of the combined noise of 20 rounds each.

The design of boats, equipment, systems and devices.

Hull of the boat will be made all-metal welded aluminum alloy 1561, having stable mechanical properties, high corrosion resistance in sea water and relatively low cost.

The main characteristics of the alloy 1561: