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    Antonov-3 Light Multipurpose Aircraft (AN-3) -  Antonov-3 Light Multipurpose Aircraft (AN-3) -  Antonov-3 Light Multipurpose Aircraft (AN-3) -  

    The AN-3 airplane keeps all AN-2 modifications and can be used for any purposes.

    The modification AN-2 into AN-3 allowed:

    • to increase reliability of the airplane;
    • to ensure comfort for the crew and the passengers by reducing noise and vibration, ventilation and heat systems;
    • to make fuselage longer and to install an additional door for the crew;
    • to increase take-off weight of the airplane and payload by 300 kg respectively (for forest fire-fighting variant - by 600 kg);
    • to increase safety of the crew (during hard landing) by means of installation of additional partition (barrier) between a cockpit and a cargo cabin.
    • to raise air chemical work productivity by 1,6 times, thanks to new agricultural equipment, improved flight performance, loading of chemicals without stopping an engine (due to propeller braking and stopping).

    The airplane can be modified into transport variant, if there are no Air chemical works.

    Main differences of the AN-3 airplane. - there is a pilot door between the 5-th and the 6-th fuselage frame on the left board; - horizontal tail is at +1 angle. Stabilisator and elevator are updated

    • horn balance is equipped, vertical tail is modified. New rudder with decompensator is installed;
    • TBD-20 turboprop engine (running on any type of kerosene) is installed;

    Specific fuel consumption - 0,225 kg. Engine air-intake gauze filter is located on the top of the cowling. Oil system includes a tank for 40 litres (instead of 125 litres on AN-2) as oil consumption is greatly reduced (0,2 kg per hour). Engine mass is 285 kg, that is twice less than ASH-62 engine. Engine starts without preheating at the temperature - 25'C (using synthetic oil - 40'C). Start -up time is about 40 seconds. Engine response time (from idling conditions to take-off regime) is 2,5 seconds.

    • new engine instruments and control system;
    • more powerful GSP-6000 generator, 20 NK MBN accumulators, PT-200 transducers;
    • new fire-protection system with SPS-3 fire warnings and fire suppression system with two extinguishers;
    • instrument panel is completed in accordance with the air - worthiness standards;
    • slight-control and navigational equipment includes AGK-17US
    • aero horizon DA-3OP combined instrument ARK-25 compass system;
    • at customer's request A-137 radio altimeter, A-611 marker receiver, radio compass can be installed;
    • flight recorder of power plant and aircraft (BUR-4) is installed.

    the additional fuel tanks for 400 litres are available for installation by customer's request.

    The modernization allowed:

    • to use as a fuel any aviational kerosene;
    • to increase: into 1,2 times the payload
    • into 1,2 times the flight speed;
    • into 1,85 times the climbing ability;
    • to increase flight reliability and safety;
    • to ensure comfort for the crew, to lower noise and vibration in the cockpit and to make convenient entrance into it;
    • to preserve ability of carrying out the flights from ground sites with length of 500 m;
    • to improve economical figures: airplane productivity increased into 1,5 times.

    Comparative performance of the AN-2 and AN-3 aircraft

      Transport variant Agricultural variant
      AN-3 AN-2 AN-3 AN-2
    Engine:
    type turboprop TVD-20 reciprocating ASh-62IR turboprop TVD-20 reciprocating ASh-62IR
    power, kW (..) 1010 (1375) 736 (1000) 1010 (1375) 736 (1000)
    type of fuel T1,TC2,RT B91 T1,TC2,RT B91
    fuel consumption kg/km 0,8-0,9 0,7-0,8 0,9-1,0 0,8
    acceleration, sec 2,5
    maximum take-off mass,kg 5800 5500 5800 5250
    maximum landing, kg 5800 5500 5800 5250
    maximum payload, kg 1800 1500    
    maximum chemicals mass,kg     1800 1250
    Cruising speed km/h 220-230 190    
    Practical ceiling, m 4400 4400    
    Optimum flight altitude, m 2000 1000    
    Practical flight range, km
    with the cargo 1500 kg 770 530    
    with the cargo 1250 kg 900 750    
    Take-off run, m 140 230    
    landing roll, m 95 190    
    Tank for chemicals capacity, l     2200 1400
    Work speed at ACW,km/h     150-170 150-160
    Efficiency, hectare/h        
    pollination (150 kg/hectare)     74 42
    pulverization (50 l/ hectare)     132 81
    middle     114 70
    Required length of a runway, m 500 500 500 500
    Rate of climb, m/sec 5 2,7 3,3-3,7 1,7-2,0
    Airfield elevation, m to 3000 to 1500 to 3000 to 1500
    Crew, persons. 2 2 1 2

    The airplane AN-3 may be delivered in following kinds:

    • transport type;
    • convertible;
    • sanitary;
    • forest fire fighting;
    • landing.

    Producer:
    POLYOT PO

 

 

 Video: VTTV Video.

 



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