An-32 Family Transport Aircraft

Aircraft modifications:

Transport aircraft An-32B-100
An-32B-110/120 aircraft
An-32B-200 aircraft
An-32B-300 aircraft
The maritime patrol aircraft An-32MP
Аn-32P Aircraft Firekiller
Maintenance system

An-32B-100

An-32B-100 is the transport aircraft designed for the transportation of different cargoes. The aircraft has an essential advantage before its competitors in speeding that allows to perform landing and taking-off with abrupt trajectories which is extremely important for the aircraft operation on the high-mountainous aerodromes and platforms located in hot climatic zones.

The aircraft has the large take-off weight of 28.5 t, it is able to transport 7.5 t of payload to the distance of 1000km, and the flight to the maximum distance of 2200 km.

In comparison with the basic model AN-32B, on the aircraft there are two installed turboprop engines AI-20D seria 5M with taking-off mode 4750 h.p. and the extreme mode is entered (5180 h.p) which is included automatically in case of failure of one of the engines during taking-off. Capacity of the working engine is enough to continue taking-off with positive gradient of a set of height (2,4% or 1,4 0 ). The engine service life is 20 000 hours and service life between repairs is 4000 hours.

Engine main data:

• Maximum Take-off power at: РН = 760 mm Hg, T = 15°C, М p = 0
• Shaft power (hp) 4750
• Fuel consumption (g/hp . h) 234
• Power using for takeoff at: Ph = 760 mm m/c., t h = 15°C , Mn = 0
• power on propeller shaft (e.h.p.) 4200
• specific fuel consumption (g/hp . h) 242
• Emergency power at: Р Н = 760 mm Hg, T = 15°C, Мp = 0
• Рower (e.h.p.) 5180
• Fuel consumption (g/hp . h) 231
• Cruise power at: Н = 8000 м , М p =0 . 57, М S А
• Shaft power (e.h.p.) 2725
• Fuel consumption (g/e.h.p. . h) 199

On the aircraft the airborne turbo generator installation is installed, which is used for the engine start and onboard network feeding on the ground for the operation of winches of the loading devices that allows to perform loading and unloading on the non-equipped aerodromes. Thus an independent aircraft operation is provided. The aircraft has big installed power (0 . 298-0 . 333 h.p./ kg) due to which it is successfully operated on the high-mountainous aerodromes and in the conditions of high temperature.

The aircraft has all the necessary modern transport devices:

• large cargo cabin in the tail part of the fuselage with ramp removed under the fuselage that provides fast unloading and loading of the aircraft from the board of a motor vehicle;
• upper loading device for loading-unloading of cargoes with the weight up to 3t;
• lower loading device with the help of airborne loading winch БЛ -56 allowing to perform loading-unloading of non-self-propelled wheel equipment along the ramp of the cargo cabin lowered to the ground;
• removable rolling equipment providing the transportation of the cargoes packed on the platforms and pallets.

Cargoes and engineering are consolidated on a floor to removable tie-down fittings through grids and coupling belts.

Аn-32B-100 – military-transport aircraft is equipped with the special equipment allowing to perform transportation, dropping of cargoes and troop paradropping and also to perform dropping of special cargoes from the external suspension.

The cargo cabin of the aircraft is equipped by removable roller track equipment with latch girders for the transportation of modular (2х3000 kg) or small (2х500kg) platforms with their subsequent landing on parachutes. For this purpose the rollback of a ramp under a fuselage of an airplane is foreseen.

The troop paradropping is performed through the open cargo door with the ramp rolled away under the fuselage with the help of a special aerial-delivery system for the forced enactment of parachute systems.

GEOMETRIC DATA of Fuselage

Length 23,68 m

Maximum width 2,78 m

Cargo compartment overall dimensions:

• maximum width 2,78 m
• maximum width, floor 2,4 m
• maximum height 1,84 m
• length 12,48 m
• floor area 30 m²

Total volume of cargo compartment 66 m³

On the Аn-32B-100 aircraft the installation of 4 beam holders for the suspension special cargoes up to 500kg each is foreseen. With the help of NKPB-7 sight the aiming dropping of special cargoes from the beam holders of the aircraft bombing equipment, and platforms with the cargoes fixed in girders of sections of rollgang equipment in a cargo cabin is provided.

Complete set of the equipment of the An-32B-100 aircraft includes also equipment for creation of interferences to the missile guidance systems.

Cockpit and cargo cabin are tight and are equipped with an air conditioning system. The system of conditioning provides in a pressurized cabin 20-25-aliquot exchange of air within one hour.

In a cargo cabin the air temperature during the flight is kept with reference to transported cargoes in limits from +5°С up to +20°C. In a cockpit the comfortable temperature (20 + 2)°C is kept.

Pressure in a pressurized cabin is kept automatically. Up to the altitude of flight of 2800m in a pressurized cabin the constant absolute pressure of the altitude is kept; the beginning of hermetic sealing on a computed elevation of flight of 8000 m "altitude" in a pressurized cabin does not exceed 2400m.

A separate regulation of the air temperature in cabins provides maintenance of the temperature in a cargo cabin with reference to transported cargo, saving at the same time normal temperature conditions for the crew.

Low-pressure tire landing gear and high location of the engines eliminating hit of strange objects into air intakes during takeoff and landing, allow to operate the aircraft from unpaved aerodromes and platforms.

AREE of the An-32B-100 aircraft consists of radio communication, radio navigation equipment and radar aids.

The avionics installed on the aircraft allows:

• performing of non-searching voice communication of the aircraft crew in MB and ДМВ ranges;
• selection of any communication channel from 9200 frequencies without preliminary set-up or one of 20 frequencies predetermined on a storage;
• performing of distant simplex non- searching and free-from-tuning radio-frequency voice communication of the aircraft crew with the ground dispatching (command) points and crews of other aircraft;
• performing of double-sided communication inside the aircraft between the crew members, exit of the crew members to the external communication through radio stations installed on the aircraft, listening of signals of navigational systems and special-purpose signals, and also for communication with the ground operation personnel while technical maintenance of the aircraft;
• performing of continuous recording of the inner aircraft negotiations of the crew in the auto mode to a wire sound carrier, information from outputs of radio-receiving devices, and also recording of the hidden information from throat microphones of the crew chief not intended for the transmission to an ether, and listening by other crew members;
• air navigation on locator beacons and broadcasting radio stations and radio beacons;
• performing of continuous measurement of the flight altitude above certain territory;
• providence of the aircraft flights according to the signals of omni directional radio beacons of VOR international system, fulfillment of intermediate approaches and landing approaches according to the signals of approach beacons of ILS international system and systems of СП type;
• continuous measurement and indication of a slant range ( R s ) between the aircraft and ground transponder beacon while flyovers on international lines;
• continuous automatic measurement of ground speed and drift angle of the aircraft irrespective of an underlying surface (land, sea, sand, ice) and optical visibility and issue of this information to the indicator of the autonomous aircraft radar (Doppler sensor ДИСС-013) and to the automatic navigator;
• indication of the aircraft position in the conditional rectangular (great circle) coordinate system;
• obtaining of continuous indication about current coordinates of the aircraft position ( CCAP ) and navigational flight parameters at any time of the day and any meteorological conditions while the aircraft position in a coverage of any ground radio navigation systems of long-range navigation ( RNS );
• navigational ground mapping of the unified radar station, detection of zones of thunderstorm activity and powerful cloud cover and definition of their occurrence with reference to the aircraft on azimuth and range, measurement of the drift angle of the aircraft;
• automatic transfer of mating signals for the coordinate setting of the aircraft, number and altitude of its flight to the ground stations ;
• automatic transfer of a signal about the emergency situation on the aircraft and call sign to the manager of Police (the system has a built-in control);
• measurements of the aircraft forward speed with reference to the air environment and indication of both instrumental speed and true air speed;
• measurement and indication of the pressure altitude of the aircraft flight (-m and -foot systems);
• measurement of the aircraft vertical velocity, i.e. rate of climb and descent according to the variometer;
• indication of the exact fulfillment of the aircraft turn round a vertical axis according to a turn indicator and indicator of slip;
• definition of availability or absence of the aircraft slip according to the indicator of slip;
• definition and indication of a course, angles of the aircraft turn;
• fulfillment of the flight according to the signals of autonomous and radio means of navigation and landing according to a selected heading, on a command altitude, enroute flight, drive of a single aircraft to the terminal area and intermediate approach, landing approach at the rate and glide path, instrument blind landing with the control of director control system operation and signaling system of failures;
• automatic stabilization and aircraft flight control on a planned trajectory;
• definition of a magnetic course of the aircraft while straight flight;
• measurement and indication of the attack angles and vertical overloads of the aircraft during the flight, actuation of the warning light and chime signaling system and device of a control wheel vibration while the aircraft approaching to a marginal attack angle or to marginal overload;
• definition of bank s and pitch angles, signaling about marginal angles;
• definition and indication of the aircraft position with reference to a plane of a celestial horizon, definition of availability and direction of the aircraft slip;
• registration of the flight parameters and preservation of the information for decoding in case of flight incident and objective discovery of the reason of an incident;
• warning of the crew about dangerous ground closing velocity.