Difference between revisions of "Mi-24V Flight Manual part 1"

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== '''PREPARING HELICOPTER TO FLIGHT'''==  
 
== '''PREPARING HELICOPTER TO FLIGHT'''==  
  
=== '''1.3 Check systems before start engine'''===  
+
=== '''1.1 Preliminary Cockpit Inspection'''===  
  
==== '''1.3.5 Pilot had to turn on batteries an check their voltage value'''====  
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==== '''1.1.1 Check Battery Voltage'''====  
  
<nowiki>Turn on [</nowiki>ЛЕВ.], <nowiki>[</nowiki>ПРАВ.] (batteries), <nowiki>[</nowiki>СЕТЬ НА АККУМУЛЯТ.<nowiki>], [</nowiki>ЛЕВ. №1<nowiki>] and [</nowiki>ПРАВ. №2] switches <nowiki>(voltage gauge should indicate at least 24 volts when DC test selector switch in [</nowiki>АККУМ.<nowiki>] position), turn off [</nowiki>СЕТЬ НА АККУМУЛЯТ.<nowiki>], [</nowiki>ЛЕВ. №1<nowiki>] and [</nowiki>ПРАВ. №2] switches.
+
Turn on (1) '''[LEFT BATTERY][ЛЕВ.]''', (2) '''[Right BATTERY][ПРАВ.]''', (3)'''[BATTERIES SUPPLY][СЕТЬ НА АККУМУЛЯТ.]''', '''[N1 FUEL TANK PUMP][ЛЕВ. №1]''' and '''[N2 FUEL TANK PUMP][ПРАВ. №2]''' switches (voltage gauge should indicate at least '''24 volts''' when '''DC test selector switch''' in (12)'''[Batteries][АККУМ.]''' position), turn off '''[BATTERIES SUPPLY][СЕТЬ НА АККУМУЛЯТ.]''', '''[N1 FUEL TANK PUMP][ЛЕВ. №1]''' and '''[N2 FUEL TANK PUMP][ПРАВ. №2]''' switches.
  
<nowiki>Command ground crew to connect ground AC power supply and turn on [</nowiki>АЭРОДР. ПИТАН.] switch, <nowiki>check that [</nowiki>РОЗЕТКА ВКЛ.<nowiki>] lamp is lights, ensure that voltage gauge indicates 200-208 volts when AC test selector switch in any position except [</nowiki>ОТКЛ<nowiki>] and [115].</nowiki>
+
==== '''1.1.2 If External Power is available – AC Check'''====
  
<nowiki>Set 115 and 36 transformers switches to [</nowiki>ОСНОВНОЙ<nowiki>] position, rectifiers switches to [</nowiki>ВКЛ.] position and check that corresponding lamps above switches are off.
+
Command ground crew to connect External Power. '''[Press Enter and click the lightning symbol on Loadout Page]''' Turn on (10)'''[AC GROUNDFEED][АЭРОДР. ПИТАН.]''' switch, check that '''[GROUND FEED][РОЗЕТКА ВКЛ.]''' lamp is lights, ensure that voltage reads '''200-208 volts''' when '''AC test selector switch''' in any position except (13)'''[Off][ОТКЛ]''' and '''“115”'''.
  
==== '''1.3.6 If AC ground feed is not available'''====
+
Set '''“115”''' and '''“36”''' transformers switches to (11)'''[MAIN][ОСНОВНОЙ]''' position, rectifiers switches to '''[ON][ВКЛ.]''' position and check that corresponding lamps above switches are off.
  
Command ground crew to connect ground DC supply.
+
[[File:mi24v_power_supplies.png|512px|thumbnail]]
  
<nowiki>Set [</nowiki>АЭРОДР. ПИТАН.<nowiki>] and [</nowiki>СЕТЬ НА АККУМУЛЯТ.<nowiki>] in [</nowiki>ВКЛ.<nowiki>] position, [</nowiki>РОЗЕТКА<nowiki>] lamp should lights. Turn on [</nowiki>ПО-750А<nowiki>] switch and check that [</nowiki>ВКЛ. ПО-750А] lamp is lights.
+
Red = DC Blue = AC
  
==== '''1.3.7 If no any ground supply available'''====  
+
==== '''1.1.3 DC Check'''====  
  
Turn on and check batteries voltage, <nowiki>turn on [</nowiki>ПО-750А<nowiki>] switch and check that [</nowiki>ВКЛ. ПО-750А] lamp is lights.
+
Turn (6)'''[DC GROUNDFEED][АЭРОДР. ПИТАН.]''' and (3)'''[BATTERIES SUPPLY]''' to '''[ON][ВКЛ.]''' , '''[GROUND FEED][РОЗЕТКА]''' lamp should be lit. Turn on '''[PO-750A 115 CONVERTER][ПО-750А]''' switch and verify that '''[PO-750 OPRT][ВКЛ. ПО-750А]''' lamp is lit.
  
==== '''1.3.8 After power supply is connected'''====  
+
==== '''1.1.4. If no External Power available'''====  
  
- adjust seat and pedals position ''(eyes should be on same level as marks on the canopy)''<nowiki>;</nowiki>
+
Turn on batteries and check voltage.
  
- check warning lamps operation ''<nowiki>by choosing proper state for [</nowiki>ДЕНЬ-НОЧЬ] switch''<nowiki>; press [</nowiki>КОНТРОЛЬ] button and ensure that all lamps are lights;
+
Turn on '''[PO-750A 115 CONVERTER][ПО-750А]''' switch and check that '''[PO-750 OPRT][ВКЛ. ПО-750А]''' lamp is lit.
  
- ensure, that external landing gears lights switch are turned on, command to tech crew member to check their operation;
+
==== '''1.1.5 After power supply is established'''====
  
<nowiki>- ensure that wheels brakes are operate properly (after engaging wheels brakes red warning lamp [</nowiki>ТОРМОЗ КОЛЕС] is lights, ''there is should be no any air leakage sounds present'', warning lamp should goes out when wheel brakes disengaged);
+
- Check warning lamps operation: Press '''[Lamps test][КОНТРОЛЬ]''' button and ensure that all lamps are lit;
  
- check Pilot's door and jettison handle condition;
+
- Ensure that wheels brakes are functional (after engaging wheels brakes red warning lamp '''[PARK BRAKE][ТОРМОЗ КОЛЕС]''' is lit. Warning lamp should extinguish when wheel brakes disengaged);
  
- close the door and command to Operator close canopy;
+
- Close the door and command to Operator close canopy;
  
- receive Operator's report that canopy closed, ''open doors pressurization valve,''<nowiki> [</nowiki>ДВЕРИ ЗАГЕРМ.] lamp should lights.
+
- Receive Operator's report that canopy closed: green '''[CKPT SEALED][ДВЕРИ ЗАГЕРМ.]''' lamp should illuminate.
  
If external temperature below – 35*C open doors pressurization valve only after cockpit will be warmed to avoid misting of the canopy glass;
+
- Check fuel quantity in the tanks and ensure that fuel indicator works properly;
  
- check fuel quantity in the tanks and ensure that fuel indicator works properly;
+
- Ensure that engine and gears control gauges are working properly: Set the'''[DIM TRANSFORMER][ТРАНСФОРМ. ДИМ]''' switch to '''[AUX][РЕЗЕР.]''' position and ensure that gauges needles are moving and yellow lamp '''[DIM TRANSF][ОСН. ТРАНС. ДИМ ОТКЛЮЧ.]''' is lit. After checking set switch to the left '''[MAIN][ОСН.]''' position and the light should extinguish
  
- ''<nowiki>if external temperature below + 5*C turn on pitot tubes heater by turning on switches [</nowiki>ОБОГРЕВ ППД ЛЕВ.]<nowiki>, [ОБОГРЕВ ППД ПРАВ.] </nowiki><nowiki>not longer than 1 minute, warning lamps [</nowiki>ОБОГРЕВ ЛЕВ. НЕИСПР.<nowiki>] and [</nowiki>ОБОГРЕВ ПРАВ. НЕИСПР.] shouldn't lights;''
 
  
- turn off pitot tubes heater;
+
=== '''1.2 Before Starting Engines'''===
  
''<nowiki>- if automatic ice detection system is installed, check main/tail rotors anti ice system supply by switching [</nowiki>КОНТРОЛЬ ПОС<nowiki>] to [</nowiki>АВТОМ.<nowiki>] position, [</nowiki>АВТОМАТ КОНТРОЛЬ ПОС<nowiki>] lamp should lights and after 1 sec – [</nowiki>ПОС НВ РВ НЕИСПР.<nowiki>]. After testing turn off [</nowiki>КОНТРОЛЬ ПОС] switch.''
 
  
<nowiki>- ensure that engine and gears control gauges are works properly, for that set [</nowiki>ТРАНСФОРМ. ДИМ<nowiki>] switch to [</nowiki>РЕЗЕР.<nowiki>] position and ensure that gauges needles are moved and warning lamp [</nowiki>ОСН. ТРАНС. ДИМ ОТКЛЮЧ.<nowiki>] is lights. After check set [</nowiki>ТРАНСФОРМ. ДИМ<nowiki>] switch to [</nowiki>ОСН.] position;
+
==== '''1.2.1 Disengage rotor brake'''====
  
''<nowiki>- ensure, that safety cap of [</nowiki>УПРАВЛ. НА СЕБЯ] switch are closed;''
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==== '''1.2.2 Check control handles and set them in proper position'''====
  
=== '''1.4 Preparing to engines start==='''
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- rudder to lower position;
  
==== '''1.4.1 If wind velocity less than 10m/s engines can be launched at any relative heading.'''====
+
- throttle grip to the left (Left Click on Cyclic Twist);
  
If wind velocity is 10-25m/s helicopter should be turn against wind.
+
- cyclic handle move backward on 60mm and engage wheels brakes.
  
'''ATTENTION: '''if wind velocity more than 25m/s engine start is prohibited.
+
==== '''1.2.3 Ensure that generator switches are turned off'''====
  
 +
Warning lamps '''[L GEN INOPRT][ЛЕВ. ГЕН. ОТКЛ.]''' and '''[R GEN INOPRT][ПРАВ. ГЕН. ОТКЛ.]''' are illuminated
  
==== '''1.4.2 Avoid engine launch on sand or dust surface'''====
+
==== '''1.2.4 Prepare fuel system'''====  
 
+
If it happens, watered area close to helicopter.
+
 
+
==== '''1.4.3 Disengage rotor brake'''====  
+
 
+
Command to tech crew member to turn main rotor so there is will be no blade above APU exhaust.
+
 
+
==== '''1.4.4 Check control handles and set them in proper position'''====
+
 
+
- rudder to lower position;
+
 
+
- throttle grip to the left;
+
 
+
- engines throttle handles to middle “locked” position;
+
 
+
- cyclic handle move backward on 60mm and engage wheels brakes.
+
  
==== '''1.4.8 Ensure that generator switches a turned off'''====
+
Open fuel feed tank valves (1,2), engine fire valves (3 – Right click in dashed area to unguard switches), fuel separator valve, turn on fuel pumps (4-7) '''[N1 FUEL TANK PUMP][ЛЕВ. №1],''' '''[N2 FUEL TANK PUMP][ПРАВ. №2]''', '''[N4 FUEL TANK PUMP][№4]''' and '''[N5 FUEL TANK PUMP][№5]'''<nowiki>; check that green status lamps above respective switches has lighted up and yellow warning lamps extinguished. Cross-feed as required for fuel load ( 8 – If any green light remains unlit. Light should come on within 10 seconds after crossfeed enable) and monitor Fuel distibution.</nowiki>
  
<nowiki>Warning lamps [</nowiki>ЛЕВ. ГЕН. ОТКЛ.<nowiki>] and [</nowiki>ПРАВ. ГЕН. ОТКЛ.] are lights.
+
For fuel system in further detail Reference Appendix A.
  
==== '''1.4.9 Prepare fuel system'''====
+
[[File:mi24v_fuel_1.png|512px|thumbnail]]
  
<nowiki>Open consumption fuel tanks valves, engines fire valves, fuel separator valve, turn on fuel pumps [</nowiki>ЛЕВ. №1], <nowiki>[</nowiki>ПРАВ. №2<nowiki>], [</nowiki>№<nowiki>4] and [</nowiki>№5]; check that warning lamps has lighted up (goes out) placed above relative switches.
+
=== '''1.3 APU start'''===
  
''<nowiki>If external fuel tanks are attached turn on [</nowiki>ПОДВЕСН. БАКИ<nowiki>] switch and ensure that [</nowiki>ПЕРЕКАЧ. РАБОТАЕТ] lamp is lights. If fuel tank №3 <nowiki>is not full [ВЫКЛ</nowiki>ЮЧИ ПЕРЕКАЧ.] lamp can lighted up for a moment.''
+
==== '''1.3.1 Set APU mode switch to [ЗАПУСК]'''====
  
 +
Veryfy '''[APU GEN][ГЕНЕР. АИ-9В]''' is switched off.
  
=== '''1.6 APU start'''===
+
Set DC voltage selector switch to position related current power supply type ( External or Battery), set '''[APU START MODE][РОД РАБОТ]''' switch to '''[START][ЗАПУСК]''' ( lower )position. Press '''[START APU][ЗАПУСК]''' button for 2-3 seconds, turn on stopwatch and wait until '''[AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН]''' lights up. When APU reaches normal RPM, lamps '''[APU RPM][ОБОРОТЫ АИ-9В НОРМАЛЬН.]''', '''[AUTOMAT WORKING][АИ-9В РАБОТ.]''' and '''[APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН]''' will light up.
  
==== '''<nowiki>1.6.1 Set APU mode switch to [</nowiki>ЗАПУСК]'''====  
+
==== '''1.3.2 While start up monitor following values:'''====  
  
<nowiki>Set DC voltage selector switch to position related current power supply type ([</nowiki>ГЕНЕР. АИ-9В<nowiki>] switch should be turned off). Command to tech crew member “APU start up”. When acknowledge received press [</nowiki>ЗАПУСК<nowiki>] button for 2-3 seconds, turn on stopwatch and wait until [</nowiki>АВТОМАТ ВКЛЮЧЕН<nowiki>] lights up. When APU reach normal RPM lamps [</nowiki>ОБОРОТЫ АИ-9В НОРМАЛЬН.<nowiki>], [</nowiki>АИ-9В РАБОТ.<nowiki>] and [</nowiki>ДАВЛЕН. МАСЛА НОРМАЛЬН] lights up.
+
- exhaust gas temperature must not exceed '''880°C'''<nowiki>;</nowiki>
  
==== '''1.6.2 While start up processing check next values:'''====
+
- DC currents must be higher than '''18 volts'''<nowiki>;</nowiki>
  
- exhaust air temperature should be less than 880*C;
+
- normal oil pressure is indicated by '''[APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН]''' light. At the beginning of APU start blinking of this lamp can occur;
  
- DC currents shouldn't be less than 18 volts;
+
- time needed to reach idle RPM shouldn't exceed '''20 seconds'''<nowiki>;</nowiki>
  
<nowiki>- normal oil pressure can be indicated by [</nowiki>ДАВЛЕН. МАСЛА НОРМАЛЬН.] light<nowiki>; </nowiki>at the beginning of APU start blinking of this lamp can happen;
+
- Maximum time for starter engagement is '''30 seconds''', check that '''[AUTOMAT WORKING][АИ-9В РАБОТ.]''' lamp extinguishes after that amount of time.
  
- time of reaching idle RPM shouldn't be more than 20 seconds;
+
-If any mentioned Values are exceeded, abort start and have the Aircraft inspected!
  
<nowiki>- time of automatic start panel working should be less than 30 seconds, check on [</nowiki>АВТОМАТ ВКЛЮЧЕН] lamp goes out.
+
==== '''1.3.3 After APU reach normal RPM ensure that:'''====
  
==== '''1.6.3 After APU reach normal RPM ensure that:'''====
+
- green lamp '''[APU RPM][ОБОРОТЫ АИ-9В НОРМАЛЬН.]''' is illuminated<nowiki>;</nowiki>
  
<nowiki>- lamp [</nowiki>ОБОРОТЫ АИ-9В НОРМАЛЬН.]<nowiki>;</nowiki>
+
- exhaust gas temperature is less than '''720°C'''<nowiki>;</nowiki>
  
- exhaust air temperature is less than 720*C;
+
- lamp '''[APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН]''' is lit. This indicates normal oil Pressure of AI-9V engine.
  
<nowiki>- lamp [</nowiki>ДАВЛЕН. МАСЛА НОРМАЛЬН] is lights, that indicates normal pressure of AI-9V engine.
+
==== '''1.3.4 Check APU generator before flight day'''====
  
==== '''1.6.4 Check APU generator before flight'''====
+
Turn on '''[APU GEN][ГЕНЕР. АИ-9В]''' switch. Output voltage should be '''28-29 volts''', exhaust temperature not more than '''750*C'''.
  
<nowiki>turn on [</nowiki>ГЕНЕРАТОР АИ-9В] switch. Output voltage should be 28-29 volts, exhaust temperature not more than 750*C.
+
After generator test is over turn off '''[APU GEN][ГЕНЕР. АИ-9В]''' switch (When External Power is connected).
  
<nowiki>After generator testing turn off [</nowiki>ГЕНЕРАТОР АИ-9В] switch.
+
==== '''1.3.5 APU air pressure'''====
  
==== '''1.6.5 APU air pressure'''====
+
Can be monitored by manometer indication at left panel of Pilot's cockpit and should be within the values from graph 1.3 depending on external air temperature and density.
  
Can be monitored by manometer indication at left panel of Pilot's cockpit and should be within the values from graph 1.3 depends on external air temperature and density.
 
  
=== '''1.8 Engine start'''===  
+
=== '''1.4 Engine start'''===  
  
==== '''1.8.1 Engine start, warm up and testing of gears, on-board systems testing on running engines'''====  
+
==== '''1.4.1 Engine start, First Engine''' ====
  
Can be performed only by Pilot, any helicopter displacements not allowed.
+
Set '''[ENGINE START MODE][РОД РАБОТ]''' switch to '''[START][ЗАПУСК]''' position, '''[ENGINE SELECTOR][ЗАПУСК ДВИГАТ.]''' switch to '''[RIGHT][ПРАВЫЙ]''' or '''[LEFT][ЛЕВЫЙ]'''. Press '''[START ENGINE][ЗАПУСК]''' button for 1-2 seconds.
  
==== '''1.8.4 Ensure, that control handles moved to starting position.'''====
+
At 15% Compressor RPM move '''shutoff fuel valve''' to open (forward) position.
  
<nowiki>Set mode switch to [</nowiki>ЗАПУСК<nowiki>] position, [</nowiki>ЗАПУСК ДВИГАТ.<nowiki>] switch to [</nowiki>ПРАВЫЙ<nowiki>] or [</nowiki>ЛЕВЫЙ<nowiki>]. Command to tech crew member “Start engine”. After acknowledge received press [</nowiki>ЗАПУСК] button for 1-2 seconds and move relative shutoff fuel valve to lower position.
+
Compressor should reach idle (60%) RPM within '''60 seconds'''.
  
Compressor should reach idle RPM for 60 seconds.
+
==== '''1.4.2 During start up monitor that:'''====
  
==== '''1.8.5 While start up processing ensure that:'''====
+
- automatic start panel operate properly, lamp '''[AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН]''' is lit;
  
<nowiki>- automatic start panel operate properly, lamp [</nowiki>АВТОМАТ. ВКЛЮЧЕН] is lights;
+
- air starter operation indicated by '''[ENGINE START][СТАРТЕР РАБОТАЕТ]''' lamp;
  
<nowiki>- air starter operate indicated by [</nowiki>СТАРТЕР РАБОТАЕТ] lamp;
+
- compressor RPM increasing continuously (without freezing) and main rotor start to spin at around '''25% compressor revolutions'''<nowiki>;</nowiki>
  
- compressor RPM increase continuous (without freezing) and main rotor start to spin up at 25% compressor revolutions;
+
- EGT limits from '''graph. 1.4''' shouldn't be exceeded.;
  
- air temperature before compressor increasing, limits from graph. 1.4 shouldn't be exceeded.;
+
- sufficient oil pressure indicated by manometer on front panel, at '''45% compressor revolutions''' pressure should be more than '''1 kg/cm^2'''<nowiki>;</nowiki>
  
- sufficient oil pressure indicated by manometer on front panel, at 45% compressor revolutions pressure should be more than 1 kgs/cm2;
+
- starter cut out after compressor reaches idle RPM, '''[ENGINE START][СТАРТЕР РАБОТАЕТ]''' lamp goes out; if it fails to disengage, shut down starter manually by pressing '''[ENGINE STARTER SUSPEND][ПРЕКРАЩ. ЗАПУСКА]''' button; if '''[ENGINE START][СТАРТЕР РАБОТАЕТ]''' lamp still on, close '''shutoff valve''' of running engine and shut down APU by pressing '''[STOP APU][ОСТАНОВ АИ-9В]''' button and have the Aircraft inspected;
  
<nowiki>- shut down of starter after compressor reach idle RPM, [</nowiki>СТАРТЕР РАБОТАЕТ<nowiki>] lam goes out; if doesn't happen shut down starter manually by pressing [</nowiki>ПРЕКРАЩ. ЗАПУСКА<nowiki>] button; if [</nowiki>СТАРТЕР РАБОТАЕТ<nowiki>] lamp still lights, close shutoff valve of running engine and shut down APU by pressing [</nowiki>ОСТАНОВ АИ-9В] button;
+
- Starter operation shouldn't exceed '''33 seconds. '''If '''[AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН]''' light is illuminated after that time period, abort starting process.
  
<nowiki>- operate time of automatic start panel can be monitored by active [</nowiki>АВТОМАТ. ВКЛЮЧЕН.] light, that shouldn't exceed 33 seconds from lights up moment.
+
==== '''1.4.3 Compressor idle RPM check values:'''====
  
==== '''1.8.6 After compressor reach idle RPM check next values:'''====
+
- compressor RPM depends on external air temperature and should be in limits.
  
- compressor RPM depends on external air temperature and should be in limits, specified in graph. 1.4;
+
- EGT must not exceed '''780*C'''<nowiki>;</nowiki>
  
- air temperature before compressor shouldn't exceed 780*C;
+
- engine oil pressure must be '''0.5kg/cm^2 or greater, '''oil temperature – more than -'''40°C'''.
  
- engine oil pressure should be more than 0.5kgs/cm2, oil temperature – more than -40*C.
+
'''WARNING: If less than 0.5kg/cm^2 is indicated, shut down engine immediately!'''
  
==== '''1.8.7 Toggle engine selection switch and repeat actions 1.8.1-1.8.5 to start second engine.'''===  
+
==== '''1.4.4 Toggle engine selection switch and repeat actions 1.4.1-1.4.3 to start second engine.'''====  
  
==== '''1.8.8 After second engine reach idle RPM'''====  
+
==== '''1.4.5 After second engine reach idle RPM'''====  
  
Check main rotor revolutions that should be in the limits 45-65%.
+
Check main rotor revolutions to be within '''45-65%'''.
  
==== '''1.8.9 Shut down APU'''====  
+
==== '''1.4.6 Shut down APU (Ext Pwr only)'''====  
  
<nowiki>Press [</nowiki>ОСТАНОВ АИ-9В] after it cooling for 0.5-1 minute.
+
Press '''[STOP APU][ОСТАНОВ АИ-9В]''' ''after it cooling for 0.5-1 minute''.
  
<nowiki>If electrics system was supplied from batteries, do not shut down APU until engines will warm up and throttle increased (rotor revolutions reach 88%), for supplying necessary equipment turn on APU generator by moving [</nowiki>ГЕНЕРАТОР АИ-9В<nowiki>] switch to [</nowiki>ВКЛ] position.
+
If electrics system was supplied from batteries, do not shut down APU until engines are warmed up and throttle increased to 88% Rotor RPM. for powering necessary equipment turn on APU generator by moving '''[APU GEN][ГЕНЕР. АИ-9В]''' switch to '''[ON][ВКЛ]''' position.
  
=== '''1.11 Activating generators and testing on-board equipment'''===  
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=== '''1.5 Before Taxi '''===  
  
==== '''1.11.1 Ensure, that main rotor revolutions is 95±2%'''====  
+
==== '''1.5.1 Ensure, that main rotor revolutions is 95±2%'''====  
  
 
If it's needed adjust throttle grip to reach required revolutions.
 
If it's needed adjust throttle grip to reach required revolutions.
  
==== '''1.11.2 Switch supplying from ground power units on on-board generators'''====  
+
==== '''1.5.2 Switch supplying from ground power units on on-board generators'''====  
  
<nowiki>- turn on [</nowiki>ЛЕВ<nowiki>] and [</nowiki>ПРАВ<nowiki>] AC generators switches, lamps [</nowiki>ЛЕВ. ГЕН. ОТКЛ.<nowiki>] and [</nowiki>ПРАВ. ГЕН. ОТКЛ.<nowiki>] should go out and [</nowiki>ПАРАЛЛЕЛ. РАБОТА ГЕНЕР.<nowiki>] will light up. Turn off [</nowiki>АЭРОДР. ПИТАН.] switch;
+
- turn on (8) '''[LEFT GEN][ЛЕВ]''' and (9) '''[RIGHT GEN][ПРАВ]''' AC generators switches, lamps '''[L GEN INOPRT][ЛЕВ. ГЕН. ОТКЛ.]''' and '''[R GEN INOPRT][ПРАВ. ГЕН. ОТКЛ.]''' should go out and '''[AC GEN OPRT][ПАРАЛЛЕЛ. РАБОТА ГЕНЕР.]''' will light up. Turn off (10) '''[AC GROUNDFEED][АЭРОДР. ПИТАН.]''' switch;
  
- command to ground crew to disconnect ground feed;
+
- command to ground crew to disconnect ground feed (Enter – Payload screen);
  
<nowiki>- check generators output voltage, that should be 203-204V for any AC test selector switch position except [</nowiki>ОТКЛ<nowiki>] and [115].</nowiki>
+
- check generators output voltage, that should be '''203-204V''' for any AC test selector switch position except (13)'''[Off][ОТКЛ]''' and '''[115]'''.
  
  
'''ATTENTION: '''after generators connected as power supplies, prohibited to decrease main rotor evolutions below 86%, otherwise generators will be shut down automatically.
+
'''ATTENTION: '''after generators connected as power supplies, DO NOT decrease rotor revolutions '''below 86%''', otherwise generators will trip.
  
==== '''1.11.3 If DC ground supply or on-board batteries was used'''====  
+
==== '''1.5.3 If DC ground supply or on-board batteries was used'''====  
  
After generators started to operate perform the following steps:
+
After generators are online, perform the following steps:
  
<nowiki>- activate automatic direction finder by turning on [</nowiki>КУРС. СИСТЕМА] switch and check it's <nowiki>operation, for this set [</nowiki>МК — ГПК — ЗК<nowiki>] switch to [</nowiki>МК] position ''<nowiki>and press [</nowiki>СОГЛАСОВАНИЕ] button''. Heading disc should indicate current azimuth;
+
- activate ADF by turning on '''[ADF][КУРС. СИСТЕМА]''' switch and check it's operation. For this set '''[ADF MODE][МК — ГПК — ЗК]''' switch to '''[Magnetic slaving][МК]''' position Heading disc should indicate current azimuth;
  
<nowiki>- turn on both gyros by turning on [</nowiki>ГИРОВЕРТИКАЛИ<nowiki>] 1 and 2 switches, check gyros operation with artificial horizons PKP-72M and UKT-2. Warning lamps [</nowiki>ОТКАЗ ГИРОВЕР. 1<nowiki>] and [</nowiki>ОТКАЗ ГИРОВЕР. 2] should go out, red flags of PKP-72M and UKT-2 disappear, actual pitch and roll angles indicated properly;
+
- turn on both gyros by turning on '''[MAIN GYRO][ГИРОВЕРТИКАЛ. 1]''' and '''[AUX GYRO][ГИРОВЕРТИКАЛ. 2]''' switches, check gyros operation with artificial horizons '''PKP-72M''' and '''UKT-2'''. Warning lamps '''[GYRO 1 FAIL][ОТКАЗ ГИРОВЕР. 1]''' and '''[GYRO 2 FAIL][ОТКАЗ ГИРОВЕР. 2]''' should go out, red flags of '''PKP-72M''' and '''UKT-2''' disappear, actual pitch and roll angles indicated properly;
  
 +
==== '''1.5.4 Enable radio equipment:'''====
  
=== '''1.13 Radio equipment testing'''==
+
- Turn on '''[HF RADIO][КВ]''', '''[VHF RADIO][УКВ]''', ''[ЭВКАЛ.-М24]'', '''[DISS][ДИСС]''', '''[RADIO ALTIMETER][РАДИОВЫСОТ.]''' and '''[SPO-15 POWER][СИРЕНА-3М ПИТАНИЕ]''' switches;
  
Radio equipment tests should be made before every flight day (night).
+
- Set '''ARK-15 MODE''' selector switch in required position ('''Compass''').
  
==== '''1.13.1 To enable radio equipment:'''====
+
- Turn on '''[ARK-U2 POWER][ВКЛ]''' switch on control panel of ARK-U2 radio compass.
  
<nowiki>- turn on [</nowiki>КВ<nowiki>], [</nowiki>УКВ], <nowiki>[</nowiki>ЭВКАЛ.-М24<nowiki>], [</nowiki>ДИСС], <nowiki>[</nowiki>РАДИОВЫСОТ.<nowiki>] and [</nowiki>СИРЕНА-3М] switches;
+
==== '''1.5.5 Test radio equipment:'''====
  
<nowiki>- set ARK-15 mode selector switch in required position, switch on control panel of 020M device – in [</nowiki>ПИТАНИЕ] position;
+
For radio stations test set '''[SPU-8 MODE][РАД.-СПУ]''' switch of SPU-8 panel to '''[External][РАД.]''', mode selector switch – to '''[VHF1][УК1]''' or '''[MW][СР]''' position. '''[R-860-1 MODE][АРК Р/СТ — Р/СТ]''' switch on R-860/R-863 radio panel set to '''[ADF + RADIO][АРК Р/СТ]'''l
  
- turn on switch on control panel of ARK-U2 radio compass.
+
- Radio altimeter RV-5 should indicate altitude value 15±1.5 when '''[RADIO ALTIMETER TEST][КОНТРОЛЬ]''' button is pressed. Adjust safe altitude value with '''[RADIO ALTIMETER SAFE ALT][УСТАН.ВЫСОТ.]''' on RV-5 gauge.
  
==== '''1.13.2 Follow next steps to test radio equipment:'''====
+
Inflight ''voice message “Lower the gears”'' appears if altitude drops below set limit and forward velocity less than 70km/h;
  
- radio station R-860/R-863, “Evkalipt-M24” and “Karat-M24”/“Yadro-1G” - by exchanging messages with other radio stations, ''or if there are no any available – by self-listening or listening background noise noise. ''<nowiki>For radio stations test set [</nowiki>РАД.-СПУ<nowiki>] switch of SPU-8 panel to [</nowiki>РАД.<nowiki>], mode selector switch – to [</nowiki>УК1<nowiki>] or [</nowiki>СР] position. ''<nowiki>To toggle from receiving mode to transmitting, press [</nowiki>СПУ-РАДИО] button on cyclic handle to second click.''<nowiki> [</nowiki>АРК Р/СТ — Р/СТ<nowiki>] switch on R-860/R-863 radio panel set to [</nowiki>АРК Р/СТ<nowiki>] only in case listening of beacons callsign, radio communication on HF range or joint work with ARK-U2. In this case received signal from R-860/R-863 will be will be heard in any SPU-8 mode switch position. In R-863 testing process ensure that green lamp on radio panel is lights when signal receiving on emergency channel, if [</nowiki>AP] switch in higher position also received signal will be heard. Also command radio signals should be heard on main channel. ''<nowiki>After testing set [</nowiki>АП] switch in lower position.''
+
- check radio compass ARK-15 heading and direction finding with known beacons in less than 50km range. For that set '''mode switch''' on ARK-15 panel to position ('''[COMPASS][КОМ]'''.
  
<nowiki>- voice warning system RI-65 – as sound quality of warning message after [</nowiki>ПРОВЕРКА] button was pressed on RI-65 control panel, message “RI-65 operate” will be played twice in headphones.
+
==== '''1.5.6 Check Doppler navigation system DISS-15'''====
  
<nowiki>While message playing press [</nowiki>ОТКЛ.] button, message should be interrupted. Press and hold <nowiki>[</nowiki>ПОВТОР] button more than 1 second, same message should be repeated twice;
+
- set '''DISS mode selector''' on control panel to '''[Memory][ПАМЯТЬ] '''position;
  
- radio altimeter RV-5 should indicate altitude value 15<nowiki>±1.5 when [</nowiki>КОНТРОЛЬ<nowiki>] button is pressed. Adjust safe altitude value with [</nowiki>УСТАН.ВЫСОТ.] on RV-5 gauge.
+
- set '''[DISS SURFACE TYPE][С-М]''' and '''[DISS DRIFT TEST][К-Р]''' switches on drift indicator to '''[Land][С]''' and '''[Operate][Р]'''<nowiki>;</nowiki>
  
In the flight ''voice message “Lower the gears”'' appears if adjusted altitude limit reached and forward velocity less than 70km/h;
+
- turn on '''[DISS][ДИСС]''' switch, lamp indicators '''[КОНТР.]''', '''[М]''' and '''[В]''' should light up, on drift indicator – '''[П]''' lamp;
  
- check radio compass ARK-15 ''received signal quality'' and stable direction finding with known beacons in range less than 50km. <nowiki>For that set mode switch on SPU-8 panel to [</nowiki>РК1] position, mode switch on ARK-15 panel in <nowiki>required position ([</nowiki>КОМ<nowiki>], [</nowiki>АНТ.<nowiki>] or [</nowiki>РАМ.]) <nowiki>and left handle on RMI-2 device to position, when [</nowiki>АРК1] flag appears in small window;
+
- check system operation in calculation mode by moving '''DISS-15 mode selector''' switch to position '''Test 1''', '''Test 2''' and '''Test 3'''<nowiki>;</nowiki>
  
- check radio compass ARK-U2 for quality of joint work with emergency radio R-855U, ''or if it not installed - for <nowiki>background noise when SPU-8 mode switch in [</nowiki>РК2] position''<nowiki>;</nowiki>
+
- check DISS-15 operation in “Sea” mode, moving '''[DISS SURFACE TYPE][С-М]''' switch to '''[Sea][М]''' position and '''mode selector switch''' to '''Test 1''' position. Forward velocity value will be increased 3 km/h.
  
''<nowiki>- check device 020M for active lamps [</nowiki>КНОТР. ПИТ.<nowiki>], [</nowiki>КОД. ВКЛ.<nowiki>] and possible [</nowiki>ИЗЛУЧ.<nowiki>] flashing. To disable device set [</nowiki>ПИТАНИЕ] switch in higher position;''
+
Left '''[DISS SURFACE TYPE][С-М]''' switch in '''[Land][С]''' or '''[Sea][М]''' position depending on surface in mission area;
  
- device 62<nowiki>01 – [</nowiki>ОТКАЗ СРО<nowiki>] lamp not active, [</nowiki>КД<nowiki>] lamp is lights. To activate device turn on [</nowiki>СРО] switch on the left Pilot panel;
+
- check position indicator operation - set to zero '''[DISS DISTANCE][ПУТЬ КМ]''', '''[DISS DRIFT][БОКОВОЕ УКЛОНЕНИЕ КМ]''', ''[УГОЛ КАРТЫ]'' counters with buttons '''[BCWD][Н]''', ['''FWD][В]''', '''[LFT][ВЛ]''', '''[RGHT][ВПР]''', ''“-” and “+”''. While '''DISS-15 mode selector''' switch in '''Test 1''' position press '''[DISS counters on][ВКЛ.]''' button on indicators panel (for 5 minutes counter '''[FWD][ВПЕРЕД]''' should show 11.3 km);
  
==== '''1.13.3 Check Doppler navigation system DISS-15'''====
+
- check drift and forward velocity indicator – set '''[DISS DRIFT TEST][К-Р]''' in '''[TEST][К]''' position. Forward velocity indicator value should be (306±3.5) km/h, drift angle (15±1)*.
  
<nowiki>- set mode switch on control panel to [</nowiki>ПАМЯТЬ];
+
- check “Memory” mode – set '''mode selector''' switch to '''[Memory][ПАМЯТЬ]''' position. Forward velocity indicator should change not more than ±9 km/h, drift angle – less than ±3*. Lamp '''[П]''' on drift indicator will light up at same time. Set '''[DISS DRIFT TEST][К-Р]''' switch to '''[Operate][Р]''' position;
  
<nowiki>- set [</nowiki>С-М<nowiki>] and [</nowiki>К-Р<nowiki>] switches on drift indicator to [</nowiki>С<nowiki>] and [</nowiki>Р];
+
- check map-case operation for movement of caret when '''[MAP-CASE POWER][ВКЛ.-АВТ.-ОТКЛ.]''' switched in '''[ON][ВКЛ.]''' position and '''[DISS counters on][ВКЛ.]''' button on counters panel is pressed. After tests are finished set '''[MAP-CASE POWER][ВКЛ.-АВТ.-ОТКЛ.]''' to '''[OFF][ОТКЛ.]'''.
  
<nowiki>- turn on [</nowiki>ДИСС<nowiki>] switch, lamp indicators [</nowiki>КОНТР.<nowiki>], [</nowiki>М<nowiki>] and [</nowiki>В<nowiki>] should lights up, on drift indicator – [</nowiki>П] lamp;
+
Set DISS-15 '''mode selector''' switch to '''[OPERATE][РАБОТА]''' position.
  
- check system operation in calculation mode by moving DISS-15 mode selector switch to position 1, 2 and 3;
 
  
- check DISS-15 operation <nowiki>in “Sea” mode, moving [</nowiki>С-М] switch <nowiki>to [</nowiki>М] position and mode selector switch to 1 position. Forward velocity value will be increased 3 km/h.
+
==== '''Appendix A: Fuel System'''====
  
<nowiki>Left [</nowiki>С-М<nowiki>] switch in [</nowiki>С<nowiki>] or [</nowiki>М] position depending on surface in mission area;
+
[[File:mi24v_fuel_2.png|512px|thumbnail]]
  
- check position indicator operation -<nowiki> set to zero [</nowiki>ПУТЬ КМ<nowiki>], [</nowiki>БОКОВОЕ УКЛОНЕНИЕ КМ], ''<nowiki>[</nowiki>УГОЛ КАРТЫ]''<nowiki> counters with buttons [</nowiki>Н<nowiki>], [</nowiki>В<nowiki>], [</nowiki>ВЛ<nowiki>], [</nowiki>ВПР], ''“-” and “+”''<nowiki>. While DISS-15 mode selector switch in 1 position press [</nowiki>ВКЛ.<nowiki>] button on indicators panel (for 5 minutes counter [</nowiki>ВПЕРЕД] should show 11.3 km);
+
Fuel is distributed to the Engines from the corresponding engine Feed tanks (1,2). Should one pump fail Both engines will be fed from the remaining tank. If both pumps have failed fuel will be gravity fed to the engine, however any maneuvering must be avoided. Land ASAP in that case!
  
<nowiki>- check “Memory” mode – set mode selector switch to [</nowiki>ПАМЯТЬ] position. Forward velocity indicator should change not more than ±9 km/h, drift angle – less than ±<nowiki>3*. Lamp [</nowiki>П] on drift indicator will light up at same time.
+
The Feed tanks are fed by both main tanks (4,5) Should one transfer pump fail, fuel will be supplied via the other tank. Switch on Cross-feed (8) to use the trapped fuel in the failed tank.
  
<nowiki>Set [</nowiki>К-Р<nowiki>] switch to [</nowiki>Р] position;
+
WARNING: Should both pumps fail (e.g. due to ELEC FAIL) Only fuel in the Feed tanks is usable. Remaining flight time in that case is ~ 5 minutes!
  
<nowiki>- check map-case operation for movement of caret when [</nowiki>ВКЛ.-АВТ.-ОТКЛ.<nowiki>] switched in [</nowiki>ВКЛ.<nowiki>] position and [</nowiki>ВКЛ.<nowiki>] button on counters panel is pressed. After tests are finished set [</nowiki>ВКЛ.-АВТ.-ОТКЛ.<nowiki>] to [</nowiki>ОТКЛ.].
+
The Main Reservoir Tank has no pumps and gravity feeds directly into Tank 4.
  
<nowiki>Set DISS-15 mode selector switch to [</nowiki>РАБОТА] position.
+
External Fuel is not implemented (yet!).
  
[[category:gameplay]]
+
[[category:Mi-24V Section]]

Latest revision as of 19:38, 13 January 2020

PREPARING HELICOPTER TO FLIGHT

1.1 Preliminary Cockpit Inspection

1.1.1 Check Battery Voltage

Turn on (1) [LEFT BATTERY][ЛЕВ.], (2) [Right BATTERY][ПРАВ.], (3)[BATTERIES SUPPLY][СЕТЬ НА АККУМУЛЯТ.], [N1 FUEL TANK PUMP][ЛЕВ. №1] and [N2 FUEL TANK PUMP][ПРАВ. №2] switches (voltage gauge should indicate at least 24 volts when DC test selector switch in (12)[Batteries][АККУМ.] position), turn off [BATTERIES SUPPLY][СЕТЬ НА АККУМУЛЯТ.], [N1 FUEL TANK PUMP][ЛЕВ. №1] and [N2 FUEL TANK PUMP][ПРАВ. №2] switches.

1.1.2 If External Power is available – AC Check

Command ground crew to connect External Power. [Press Enter and click the lightning symbol on Loadout Page] Turn on (10)[AC GROUNDFEED][АЭРОДР. ПИТАН.] switch, check that [GROUND FEED][РОЗЕТКА ВКЛ.] lamp is lights, ensure that voltage reads 200-208 volts when AC test selector switch in any position except (13)[Off][ОТКЛ] and “115”.

Set “115” and “36” transformers switches to (11)[MAIN][ОСНОВНОЙ] position, rectifiers switches to [ON][ВКЛ.] position and check that corresponding lamps above switches are off.

Mi24v power supplies.png

Red = DC Blue = AC

1.1.3 DC Check

Turn (6)[DC GROUNDFEED][АЭРОДР. ПИТАН.] and (3)[BATTERIES SUPPLY] to [ON][ВКЛ.] , [GROUND FEED][РОЗЕТКА] lamp should be lit. Turn on [PO-750A 115 CONVERTER][ПО-750А] switch and verify that [PO-750 OPRT][ВКЛ. ПО-750А] lamp is lit.

1.1.4. If no External Power available

Turn on batteries and check voltage.

Turn on [PO-750A 115 CONVERTER][ПО-750А] switch and check that [PO-750 OPRT][ВКЛ. ПО-750А] lamp is lit.

1.1.5 After power supply is established

- Check warning lamps operation: Press [Lamps test][КОНТРОЛЬ] button and ensure that all lamps are lit;

- Ensure that wheels brakes are functional (after engaging wheels brakes red warning lamp [PARK BRAKE][ТОРМОЗ КОЛЕС] is lit. Warning lamp should extinguish when wheel brakes disengaged);

- Close the door and command to Operator close canopy;

- Receive Operator's report that canopy closed: green [CKPT SEALED][ДВЕРИ ЗАГЕРМ.] lamp should illuminate.

- Check fuel quantity in the tanks and ensure that fuel indicator works properly;

- Ensure that engine and gears control gauges are working properly: Set the[DIM TRANSFORMER][ТРАНСФОРМ. ДИМ] switch to [AUX][РЕЗЕР.] position and ensure that gauges needles are moving and yellow lamp [DIM TRANSF][ОСН. ТРАНС. ДИМ ОТКЛЮЧ.] is lit. After checking set switch to the left [MAIN][ОСН.] position and the light should extinguish


1.2 Before Starting Engines

1.2.1 Disengage rotor brake

1.2.2 Check control handles and set them in proper position

- rudder to lower position;

- throttle grip to the left (Left Click on Cyclic Twist);

- cyclic handle move backward on 60mm and engage wheels brakes.

1.2.3 Ensure that generator switches are turned off

Warning lamps [L GEN INOPRT][ЛЕВ. ГЕН. ОТКЛ.] and [R GEN INOPRT][ПРАВ. ГЕН. ОТКЛ.] are illuminated

1.2.4 Prepare fuel system

Open fuel feed tank valves (1,2), engine fire valves (3 – Right click in dashed area to unguard switches), fuel separator valve, turn on fuel pumps (4-7) [N1 FUEL TANK PUMP][ЛЕВ. №1], [N2 FUEL TANK PUMP][ПРАВ. №2], [N4 FUEL TANK PUMP][№4] and [N5 FUEL TANK PUMP][№5]; check that green status lamps above respective switches has lighted up and yellow warning lamps extinguished. Cross-feed as required for fuel load ( 8 – If any green light remains unlit. Light should come on within 10 seconds after crossfeed enable) and monitor Fuel distibution.

For fuel system in further detail Reference Appendix A.

Mi24v fuel 1.png

1.3 APU start

1.3.1 Set APU mode switch to [ЗАПУСК]

Veryfy [APU GEN][ГЕНЕР. АИ-9В] is switched off.

Set DC voltage selector switch to position related current power supply type ( External or Battery), set [APU START MODE][РОД РАБОТ] switch to [START][ЗАПУСК] ( lower )position. Press [START APU][ЗАПУСК] button for 2-3 seconds, turn on stopwatch and wait until [AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН] lights up. When APU reaches normal RPM, lamps [APU RPM][ОБОРОТЫ АИ-9В НОРМАЛЬН.], [AUTOMAT WORKING][АИ-9В РАБОТ.] and [APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН] will light up.

1.3.2 While start up monitor following values:

- exhaust gas temperature must not exceed 880°C;

- DC currents must be higher than 18 volts;

- normal oil pressure is indicated by [APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН] light. At the beginning of APU start blinking of this lamp can occur;

- time needed to reach idle RPM shouldn't exceed 20 seconds;

- Maximum time for starter engagement is 30 seconds, check that [AUTOMAT WORKING][АИ-9В РАБОТ.] lamp extinguishes after that amount of time.

-If any mentioned Values are exceeded, abort start and have the Aircraft inspected!

1.3.3 After APU reach normal RPM ensure that:

- green lamp [APU RPM][ОБОРОТЫ АИ-9В НОРМАЛЬН.] is illuminated;

- exhaust gas temperature is less than 720°C;

- lamp [APU OIL PSI][ДАВЛЕН. МАСЛА НОРМАЛЬН] is lit. This indicates normal oil Pressure of AI-9V engine.

1.3.4 Check APU generator before flight day

Turn on [APU GEN][ГЕНЕР. АИ-9В] switch. Output voltage should be 28-29 volts, exhaust temperature not more than 750*C.

After generator test is over turn off [APU GEN][ГЕНЕР. АИ-9В] switch (When External Power is connected).

1.3.5 APU air pressure

Can be monitored by manometer indication at left panel of Pilot's cockpit and should be within the values from graph 1.3 depending on external air temperature and density.


1.4 Engine start

1.4.1 Engine start, First Engine

Set [ENGINE START MODE][РОД РАБОТ] switch to [START][ЗАПУСК] position, [ENGINE SELECTOR][ЗАПУСК ДВИГАТ.] switch to [RIGHT][ПРАВЫЙ] or [LEFT][ЛЕВЫЙ]. Press [START ENGINE][ЗАПУСК] button for 1-2 seconds.

At 15% Compressor RPM move shutoff fuel valve to open (forward) position.

Compressor should reach idle (60%) RPM within 60 seconds.

1.4.2 During start up monitor that:

- automatic start panel operate properly, lamp [AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН] is lit;

- air starter operation indicated by [ENGINE START][СТАРТЕР РАБОТАЕТ] lamp;

- compressor RPM increasing continuously (without freezing) and main rotor start to spin at around 25% compressor revolutions;

- EGT limits from graph. 1.4 shouldn't be exceeded.;

- sufficient oil pressure indicated by manometer on front panel, at 45% compressor revolutions pressure should be more than 1 kg/cm^2;

- starter cut out after compressor reaches idle RPM, [ENGINE START][СТАРТЕР РАБОТАЕТ] lamp goes out; if it fails to disengage, shut down starter manually by pressing [ENGINE STARTER SUSPEND][ПРЕКРАЩ. ЗАПУСКА] button; if [ENGINE START][СТАРТЕР РАБОТАЕТ] lamp still on, close shutoff valve of running engine and shut down APU by pressing [STOP APU][ОСТАНОВ АИ-9В] button and have the Aircraft inspected;

- Starter operation shouldn't exceed 33 seconds. If [AUTOMAT WORKING][АВТОМАТ ВКЛЮЧЕН] light is illuminated after that time period, abort starting process.

1.4.3 Compressor idle RPM check values:

- compressor RPM depends on external air temperature and should be in limits.

- EGT must not exceed 780*C;

- engine oil pressure must be 0.5kg/cm^2 or greater, oil temperature – more than -40°C.

WARNING: If less than 0.5kg/cm^2 is indicated, shut down engine immediately!

1.4.4 Toggle engine selection switch and repeat actions 1.4.1-1.4.3 to start second engine.

1.4.5 After second engine reach idle RPM

Check main rotor revolutions to be within 45-65%.

1.4.6 Shut down APU (Ext Pwr only)

Press [STOP APU][ОСТАНОВ АИ-9В] after it cooling for 0.5-1 minute.

If electrics system was supplied from batteries, do not shut down APU until engines are warmed up and throttle increased to 88% Rotor RPM. for powering necessary equipment turn on APU generator by moving [APU GEN][ГЕНЕР. АИ-9В] switch to [ON][ВКЛ] position.

1.5 Before Taxi

1.5.1 Ensure, that main rotor revolutions is 95±2%

If it's needed adjust throttle grip to reach required revolutions.

1.5.2 Switch supplying from ground power units on on-board generators

- turn on (8) [LEFT GEN][ЛЕВ] and (9) [RIGHT GEN][ПРАВ] AC generators switches, lamps [L GEN INOPRT][ЛЕВ. ГЕН. ОТКЛ.] and [R GEN INOPRT][ПРАВ. ГЕН. ОТКЛ.] should go out and [AC GEN OPRT][ПАРАЛЛЕЛ. РАБОТА ГЕНЕР.] will light up. Turn off (10) [AC GROUNDFEED][АЭРОДР. ПИТАН.] switch;

- command to ground crew to disconnect ground feed (Enter – Payload screen);

- check generators output voltage, that should be 203-204V for any AC test selector switch position except (13)[Off][ОТКЛ] and [115].


ATTENTION: after generators connected as power supplies, DO NOT decrease rotor revolutions below 86%, otherwise generators will trip.

1.5.3 If DC ground supply or on-board batteries was used

After generators are online, perform the following steps:

- activate ADF by turning on [ADF][КУРС. СИСТЕМА] switch and check it's operation. For this set [ADF MODE][МК — ГПК — ЗК] switch to [Magnetic slaving][МК] position Heading disc should indicate current azimuth;

- turn on both gyros by turning on [MAIN GYRO][ГИРОВЕРТИКАЛ. 1] and [AUX GYRO][ГИРОВЕРТИКАЛ. 2] switches, check gyros operation with artificial horizons PKP-72M and UKT-2. Warning lamps [GYRO 1 FAIL][ОТКАЗ ГИРОВЕР. 1] and [GYRO 2 FAIL][ОТКАЗ ГИРОВЕР. 2] should go out, red flags of PKP-72M and UKT-2 disappear, actual pitch and roll angles indicated properly;

1.5.4 Enable radio equipment:

- Turn on [HF RADIO][КВ], [VHF RADIO][УКВ], [ЭВКАЛ.-М24], [DISS][ДИСС], [RADIO ALTIMETER][РАДИОВЫСОТ.] and [SPO-15 POWER][СИРЕНА-3М ПИТАНИЕ] switches;

- Set ARK-15 MODE selector switch in required position (Compass).

- Turn on [ARK-U2 POWER][ВКЛ] switch on control panel of ARK-U2 radio compass.

1.5.5 Test radio equipment:

For radio stations test set [SPU-8 MODE][РАД.-СПУ] switch of SPU-8 panel to [External][РАД.], mode selector switch – to [VHF1][УК1] or [MW][СР] position. [R-860-1 MODE][АРК Р/СТ — Р/СТ] switch on R-860/R-863 radio panel set to [ADF + RADIO][АРК Р/СТ]l

- Radio altimeter RV-5 should indicate altitude value 15±1.5 when [RADIO ALTIMETER TEST][КОНТРОЛЬ] button is pressed. Adjust safe altitude value with [RADIO ALTIMETER SAFE ALT][УСТАН.ВЫСОТ.] on RV-5 gauge.

Inflight voice message “Lower the gears” appears if altitude drops below set limit and forward velocity less than 70km/h;

- check radio compass ARK-15 heading and direction finding with known beacons in less than 50km range. For that set mode switch on ARK-15 panel to position ([COMPASS][КОМ].

1.5.6 Check Doppler navigation system DISS-15

- set DISS mode selector on control panel to [Memory][ПАМЯТЬ] position;

- set [DISS SURFACE TYPE][С-М] and [DISS DRIFT TEST][К-Р] switches on drift indicator to [Land][С] and [Operate][Р];

- turn on [DISS][ДИСС] switch, lamp indicators [КОНТР.], [М] and [В] should light up, on drift indicator – [П] lamp;

- check system operation in calculation mode by moving DISS-15 mode selector switch to position Test 1, Test 2 and Test 3;

- check DISS-15 operation in “Sea” mode, moving [DISS SURFACE TYPE][С-М] switch to [Sea][М] position and mode selector switch to Test 1 position. Forward velocity value will be increased 3 km/h.

Left [DISS SURFACE TYPE][С-М] switch in [Land][С] or [Sea][М] position depending on surface in mission area;

- check position indicator operation - set to zero [DISS DISTANCE][ПУТЬ КМ], [DISS DRIFT][БОКОВОЕ УКЛОНЕНИЕ КМ], [УГОЛ КАРТЫ] counters with buttons [BCWD][Н], [FWD][В], [LFT][ВЛ], [RGHT][ВПР], “-” and “+”. While DISS-15 mode selector switch in Test 1 position press [DISS counters on][ВКЛ.] button on indicators panel (for 5 minutes counter [FWD][ВПЕРЕД] should show 11.3 km);

- check drift and forward velocity indicator – set [DISS DRIFT TEST][К-Р] in [TEST][К] position. Forward velocity indicator value should be (306±3.5) km/h, drift angle (15±1)*.

- check “Memory” mode – set mode selector switch to [Memory][ПАМЯТЬ] position. Forward velocity indicator should change not more than ±9 km/h, drift angle – less than ±3*. Lamp [П] on drift indicator will light up at same time. Set [DISS DRIFT TEST][К-Р] switch to [Operate][Р] position;

- check map-case operation for movement of caret when [MAP-CASE POWER][ВКЛ.-АВТ.-ОТКЛ.] switched in [ON][ВКЛ.] position and [DISS counters on][ВКЛ.] button on counters panel is pressed. After tests are finished set [MAP-CASE POWER][ВКЛ.-АВТ.-ОТКЛ.] to [OFF][ОТКЛ.].

Set DISS-15 mode selector switch to [OPERATE][РАБОТА] position.


Appendix A: Fuel System

Mi24v fuel 2.png

Fuel is distributed to the Engines from the corresponding engine Feed tanks (1,2). Should one pump fail Both engines will be fed from the remaining tank. If both pumps have failed fuel will be gravity fed to the engine, however any maneuvering must be avoided. Land ASAP in that case!

The Feed tanks are fed by both main tanks (4,5) Should one transfer pump fail, fuel will be supplied via the other tank. Switch on Cross-feed (8) to use the trapped fuel in the failed tank.

WARNING: Should both pumps fail (e.g. due to ELEC FAIL) Only fuel in the Feed tanks is usable. Remaining flight time in that case is ~ 5 minutes!

The Main Reservoir Tank has no pumps and gravity feeds directly into Tank 4.

External Fuel is not implemented (yet!).