YAK 52 check lists

Two YAK 52 check

lists here, copy and edit as required. These are supplied as reference only and may contain errors.

YAK 52 CHECK LIST

Solo from front seat only

 

PREFLIGHT 

Configure cockpits

 REAR

Mag Control UP (1st cabin)

Gear NEUTRAL

Flaps NEUTRAL

Intsr. Switches DOWN

Mags 1+2

Brake Override OFF

Parachute Removed

Straps Tied and Secure

Canopy Closed and Locked

 

 FRONT

Mags OFF (0)

Starter Guard in place

All Switches OFF

Gear DOWN & Latched

Brakes ON

Main air supply ON

Check seatbelts

 

EXTERNAL

Prop alignment marks “0”

Prop Area clear

Cowl Shutters

Fuselage

Oil Leaks

Gear Struts

Cowl Latches

Pitot cover OFF

Static Ports

Flaps

Drain Fuel

Control Surfaces

Oil Cooler Cover

Fuel quantity

Oil Quantity, min 9 lts

 

ENTERING COCKPIT 

Seatbelts secure

Headset connected

Rudder pedals adjusted

Canopy free

Controls free

Trim free

Clock wind and set

 

STARTING

 

Air supply Re-check ON

Cooling controls OPEN

Throttle slightly open

Fuel supply ON-never turn of

Carb heat OFF

Master switch ON

Generator ON

Ignition ON

Engine Instruments ON

Enunciator lights ON

Primer LEFT and pump for fuel pressure

Primer right and prime as req’d-engine temp dependant

Press starter

Mags to BOTH (1+2)

Prime as req’d then lock

Warm up at 40%

Electrical systems as req’d

 

WARM UP

 

Monitor temps and Pressures

Set cooling controls as required

Switch on and test avionics

 

BEFORE TAKEOFF 

Mag check at 70% RPM 3% max drop.

Exercise Prop

Check primer locked, central

Throttle Friction SET

TRIM set for takeoff

Mags – Both (1+2)

Prop MAX RPM

Flaps UP

Check Engine gauges

Align Gyros

Canopy as req’d

Seatbelts tight

Transponder to ALT

TAKEOFF

 

Apply FULL power

Lift nosewheel JUST clear of the ground @ 90KPH

Climb at 170 KPH

Gear UP

Power to 82%, 80 cms

BEFORE LANDING

 

Power to 70% & 40 cms

Abeam touchdown area, GEAR   DOWN, check lights and         poles

 

AFTER LANDING

Taxy clear of runway and STOP

FLAPS Identify and raise

Cool engine to 150 CHT

Switch off mag’s

Switch of electric’s

Close air cock.

 

 

 

 

 

 

FLIGHT REFERENCE CARDS

 

 

Yakovlev YAK-52

 

 

 

NORMAL DRILLS

 

 

 

©Aerobuild Ltd

Prepared by Freestone Aviation

Gamlingay, Cambridgeshire

 

 

NOTES TO USERS

 

These Flight Reference Cards are complimentary to the Yakovlev Yak-52 Flight Manual (AB/FA/52 Issue 2). Throughout this publication the following conventions apply:-

a)    Words in capital letters indicate the actual markings on the controls concerned.

b)    Unless otherwise stated, all airspeeds quoted are indicated.

c)    Heights given are imperial with metric    conversions in    brackets to cater for either     altimeter type fitted.

 

LIST OF EFFECTIVE CARDS

 

 

 

 

WARNING

Whilst every effort has been made to ensure accuracy of transcription and content, no responsibility can be accepted for any errors howsoever caused, nor for any subsequent loss or injury arising from such errors.  Reliance placed upon the contents of these cards is at the user’s own risk.

 

EXTERNAL CHECKS

 

General position              Clear of other aircraft

Wheels chocked (if required)

Room to taxy

 

AT THE COCKPIT

 

Magnetos                      OFF

Flying controls               Locks removed

Air pressure                  50kgf/cm² min both

NOTE:  If normal system air pressure is low ie 20 kgf/cm² or more, a start may be attempted and the pressure built up on the compressor before taxy.  Otherwise, the system must be charged via the external connector, as must the emergency system.

 

PORT MAINPLANE

 

Upper surface                 Condition

Flap                          Condition

Aileron                       Condition, lock removed freedom of movement hinges and push rod secure, drain holes clear

Leading edge & under surface  Condition

Pressure head                 Cover removed, security and cleanliness

Stall warner (if fitted)      Freedom of movement

Fuel tank cap andSecurity, Visual Contents check cover plate

Access panels                 Security

 

PORT UNDERCARRIAGE

 

General                       Condition and security

Oleo extension 205mm

Wheel                         Tyre for cuts and creep

Tyre pressure 3-3.5 bar (40-45 psi in USA)

 

FRONT FUSELAGE AND ENGINE

Air system water trap         Drain, ensure shut

Cowlings                      Condition and security

Gills                         Condition and security

Propeller                     Condition and security, check prop alignment marks, no leaks, hub split pin in place.

NOTE: If the engine is cold or for the first run of the day turn the engine by hand through at least nine blades to check for hydraulic locking.  If a quantity of oil drains from the exhaust, pull through 36 blades before attempting to start the engine.

Exhaust pipes                 Condition and security

Carb air inlet                Condition and security

Oil tank                      Visual contents check, cap and dipstick                                 secure. Litres:- 8 min;10 aeros;16 max

 

NOSE UNDERCARRIAGE

General                       Condition and security

Oleo extension 131mm

Wheel                         Tyre for cuts & creep

Tyre pressure 3 – 3.5 bar(40-45psi in USA)

 

STARBOARD UNDERCARRIAGE

General                       Condition and security

Oleo extension 205mm

Wheel                         Tyre for cuts and creep

Tyre pressure 3 – 3.5 bar(40-45psi in USA)

 

STARBOARD MAINPLANE

Upper surface                 Condition

Flap                          Condition

Aileron                       Condition, lock removed freedom of movement hinges and push rod secure, drain holes clear.

Leading edge and Condition of under surface

Oil cooler                    Condition, matrix clean.  Winter baffle                                 plate secure

Fuel tank cap andSecurity, visual contents check cover plate

Access panels                 Security

 

EXTERNAL CHECKS (cont’d)

STARBOARD FUSELAGE

General                       Condition

Aerial                        Condition and security

 

TAIL UNIT

General                 Condition

Rudder                  Freedom of movement hinges and cables secure

Elevators               Freedom of movement hinges and cables secure

Trim tab                Condition and security

 

PORT FUSELAGE

General                       Condition

Gnd Pwr socket cover          Secure if not used

Pneu charge coverSecurity

 

COCKPIT

Glazing                       Condition, ensure clean

 

INTERNAL CHECKS

REAR COCKPIT

Ensure no loose articles

Flap selector                 Neutral

Magnetos                      1 + 2 (ON) see note

U/C selector                  Neutral, safety gate in

Ignition control switchCabin 1 (UP)

Starter button                Shielded

Fault simulation switches     OFF

Harness                       Secure if solo

Canopy                        Close and lock if solo

 

NOTE:  The rear magneto switch should remain OFF until priming has been completed but must placed to 1+2 (ON) before attempting to start.  On British registered aircraft the flap and undercarriage selectors in the rear cockpit are locked in Neutral.

 

 

PRE-START

Air                           On, 50kgf/cm² min both

Brakes                        On, parking catch engaged

Primer                        As required (see note)

Battery Master (or External   ON, check 24V

power of required)

Generator switch              ON, check gen fail light on

Ignition switch               ON

U/C indication                ON, check 3 greens

Engine instruments switch     ON

Lamp test                     Operate, check lights

Fuel gauge                    Check readings, test lights

Radio                         As required

Intercom                      As required

Throttle                      Set 2 open

Starter                       Operate (3-5 secs)

Magnetos                      1+2 (on) after 3-5 blades

NOTE: Priming;    Cold = 8 pumps set to CYL with the propeller                                        pulled through one blade per pump.

2 pumps set to CARB

Hot = Up to 4 pumps on CYL.

A warm engine must not be pulled through

All pulling through must be in the direction of rotation.

POST START

Throttle                      38-41%

Oil pressure                  1 kgf/cm² within 20 secs

Primer                        Secure in neutral

Throttle                      41-44% until oil temp rise

41-48% for warm up.

The engine is considered sufficiently warm when the oil temperature = 40ºC and CHT = 120ºC.

External power (if used)      Disconnect, master sw ON

Radio                         ON, tune, vol/sq adjusted

Intercom                      ON

LH switch bank                All ON

DI                            Light out, compare to S’by compass

Instruments                   Check

Controls                      Full and free movement

Radio call                    As reqd; set QFE/QNH

 

 

INTERNAL CHECKS (cont’d)

 

FRONT COCKPIT

Ensure no loose articles

 

 

Rudder pedals                 Adjusted, feet in stirrups

Parachute (if worn)           Adjusted and secure

Harness                       Adjusted and secure

Canopy                        As required

LH switch bank                All OFF

Flap selector                 UP (Neutral if air press. low)

Trim                          Neutral

Throttle friction             As required

Throttle                      Full and free operation, set closed.

Propeller control             Set max rpm (fwd)

Fire cock/Fuel cock           Full and free operation, set open (fwd)

Magnetos                      OFF

U/C selector                  DOWN, safety gate in

Instruments                   Condition, readings, art. AI. start knob pressed

Emergency air valve           Ensure closed

Carb heat                     Full and free operation set cold (fwd)

RH friction lever             As required

Oil cooler control            Full and free operation, set CLOSED (rear)

Cowling gills control         Full and free operation, set CLOSED (rear)

Inst. panel switch bank       All OFF

Cabin heater control          COLD

Headset/helmet                Plug in, loose cable secure

Accelerometer                 Reset

 

TAXYING

Ensure all clear around aircraft

Chocks                        Removed

Brakes                        Test

Instruments                   Test whilst taxying

POWER CHECKS

Clear area selected

Parking brake                 ON

Ts and Ps                     Check

Cowl flaps                    Open fully

Oil cooler shutter            As required

Throttle                      58%

Generator                     Test, voltage check 27-29V,

warning light out

Propeller                     Fully fine

Throttle                      70%, Brakes holding

Magnetos                      Test, max drop 3%

Carb heat                     Test

Propeller                     Coarse, rpm drop to 53%

Fine, rpm recovery

Repeat 3 times

Throttle                      Idle – 28-32% (max 5 mins)42-47%

PRE TAKE OFF

T-Trim                        Neutral

T-Throttle                    Adjust friction

Propeller                 Fully fine

Oil cooler                As required

M-Magnetos                    ON

M-Master switch               ON

P-Pitot heat                  As required

P-Primer                      Neutral

F-Fuel                        On, sufficient for flight

F-Flaps                       UP

G-Gauges                      Checked and set, gyros,

altimeter, Ts and Ps

G-Gills                       Open

H-Hatches                     Closed and locked

H-Harness                     Secure

C-Carb heat                   Cold

C-Controls                    Full and free movement

 

TAKE OFF

Throttle                      Fully OPEN

Check manifold pressure,

Ts and Ps, airspeed rising

Rotate                        90km/h (49kt)

Lift off                      110km/h (60kt)

Climb                         160 km/h (86kt)

 

AFTER TAKE OFF

Undercarriage                 Retract by 200km/h (108 kt)

Engine                        Set climb power ‘Nominal 1’

Ts and Ps

Radio                         Set, clearances as required

Altimeter                     QFE or QNH as required

 

IN-FLIGHT CHECKS

Pre Stalling, Spinning, Aerobatic checks (HASELL)

H- Height                     Sufficient to recover by

3000ft (900M) AGL

A-Airframe                    Flaps and landing gear UP

S-Security                    Hatches closed and locked,

Harnesses secure, no loose articles

E-Engine                      Ts and Ps, fuel, carb heat, throttle and pitch as required

L-Location                    Clear of controlled airspace cloud and built-up areas

L-Lookout                     Clearing turn

 

EN ROUTE/RE-JOIN CHECKS (FREDA)

F-Fuel                        ON and sufficient, diversion airfield selected

R-Radio                       ON, frequency and volume set, call as required

E-Engine                      Ts and Ps, carb heat

D-DI                          Check, instrument service-ability, sync. light out

A-Altimeter                   QFE/QNH as required

 

 

PRE LANDING CHECKS (DOWNWIND)

B-Brakes                OFF

U-U/C (below 200km/h)         DOWN – 3 greens and                             mechanical indication

F-Fuel                        ON, sufficient for go-around

F-Flaps (below 170km/h)       As required

P-Pitch                       Fine

I-Instruments                 Ts and Ps, altimeter set

C-Carb heat                   Checked, then COLD

H-Hatches                     As required

H-Harness                     Secure

 

FINALS

P-Pitch                       Fine

U-U/C                         DOWN, 3 greens and mechanical indication

F-Flaps                       DOWN (Vfe 170km/h/92kt)

A-Altimeter                   Setting

 

GO-AROUND

Throttle                      OPEN fully

P-Pitch                       Fine

U-U/C                         UP

F-Flaps                       Retract by 170m/h (92kt)

A-Altimeter                   Setting

 

POST LANDING

Vacate active runway and stop

Carb heat                     COLD

Flaps                         UP

Trim                          NEUTRAL

Friction                      As required

Electrics                     Non essential OFF

 

 

SHUT DOWN

 

Position                      As req. nosewheel straight

Parking brake                 ON

Radio                         OFF

Electrics                     Non essential OFF

Cowl flaps                    OPEN

Oil shutter                   As required

Throttle                      28-34% until

CHT = 140-150ºC

65-68% for 20-30 sec

28-34% for 15 sec

Magnetos                      OFF

All switches                  OFF

Air                           Off (clockwise)

Cowl flaps                    CLOSED
Oil shutter                   CLOSED

 

Vacate aircraft, fitting control locks as appropriate.  Drain the air system water trap after each flight.  If a/c is to be left overnight, consider fitting covers.

 

LIMITATIONS

 

MAXIMUM HEIGHT

 

As no oxygen system is fitted, the aircraft is limited to a maximum height of 10,000ft.

 

MAXIMUM SPEED

Vne                           420km/h (226kt)

Manoeuvring                   360km/h (194kt)

Level flight                  300km/h (162kt)

Canopy open                   250km/h (135kt)

Landing gear extended         200km/h (108kt)

Flaps extended                170km/h (91kt)

 

STALLING SPEEDS

Normal                        105km/h (57kt)

Inverted                      140km/h (76kt)

Flaps extended                100km/h (54kt)

MAXIMUM WEIGHT

Maximum weight for all flight regimes 1315kg (2899 lb)

 

AEROBATICS

All aerobatic manoeuvres are permitted.  Aerobatics are not to be attempted with landing gear or flaps extended.  Both canopies must be closed and locked.

 

LOAD FACTORS

Max positive                  +7.0g

Max negative                  -5.0g

 

INVERTED FLIGHT

2 minutes maximum with 3 minutes erect before next period of inverted flight.

 

CROSSWIND

Maximum crosswind component 6m/sec (12kt)

 

ENGINE LIMITATIONS

Take-off power is limited to a maximum of 5 minutes

Maximum RPM is limited to a maximum of 1 minute

 

OIL TEMPERATURE

Minimum                       40ºC

Normal                        50-65ºC

Maximum                       75ºC max continuous

85ºC full power

OIL PRESSURE

Minimum                       1.0kgf/cm²

Normal                        4.6kgf/cm²

 

FUEL PRESSURE

Minimum                       0.15kgf/cm²

Normal                        0.2-0.5kgf/cm²

 

CYLINDER HEAD TEMPERATURE

Minimum                       120ºC

Normal                        140-190ºC

Maximum                       240ºC

 

CARBURETTOR INTAKE TEMPERATURE

Ideal range                   10-45ºC

 

MAXIMUM ENDURANCE

 

Maximum flight range at a height of 1640ft (500m) and an airspeed of 210-215km/h (113-116kt) at 1315kg AUW (119 litres fuel) with 10% unusable fuel supply in ‘Cruise 2’ engine running condition is 510km (275nm).  In this case the flight duration is approximately 2 hours 45 minutes

 

YAKOLEV YAK-52

 

EMERGENCIES

 

CARD 8 (REAR)

ENGINE FIRE IN THE AIR

ENGINE FIRE ON THE GROUND

COCKPIT/ELECTRICAL FIRE

AIRFRAME FIRE

 

CARD 9 (FRONT)

ENGINE FAILURE ON TAKE OFF

ENGINE FAILURE IN FLIGHT

ABANDONING

 

CARD 9 (REAR)

DITCHING

RADIO FAILURE

ELECTRICAL OVERLOAD

PROPELLER OVERSPEED

HIGH OIL PRESSURE

LOW FUEL PRESSURE

 

CARD 10 (FRONT)

ROUGH RUNNING

AIRBORNE RE-START

UNDERCARRIAGE FAILURE

FLAP FAILURE

BORINGS IN OIL

 

 

ENGINE FIRE

Note: No engine fire extinguisher is fitted

Throttle                      CLOSED

Fuel cock                     OFF

Airspeed/r.p.m                Reduce by raising nose

Magnetos                      OFF when engine cuts

Sideslip to try to keep flames away from the cockpit.

 

ENGINE FIRE ON THE GROUND

Throttle                      CLOSED

Magnetos                      OFF

Fuel cock                     OFF

Parking brake                 Release to enable the aircraft to Be pushed away from burning fuel the ground.

 

COCKPIT/ELECTRICAL FIRE

If fire/smoke has occurred shortly after an electrical switch has been moved:            Reselect the particular switch to former position.

If fire/smoke persists:       All non essential electrics OFF.

If visible signs of fire:     Land as soon as possible or, if parachutes are worn, abandon the aircraft.

 

AIRFRAME FIRE

Dive the aircraft and sideslip to keep the flames away from the cockpit.

Put the Master switch to OFF.

 

If the fire goes out land as soon as possible at the nearest airfield; be prepared for a higher stalling speed if the aircraft skin is damaged.

 

If the fire persists, land as soon as possible or, if parachutes are worn, abandon the aircraft.

 

ENGINE FAILURE ON TAKE-OFF

Fuel cock               Check ON and quantity

Carburettor air               Hot

Magnetos                      Both ON

Engine                        Check indications

If possible maintain a speed of not less than 160km/h and lower the flaps as required.  If time permits before landing, turn off the fuel and switch off the ignition.  Tighten the harness and open the canopy.

 

ENGINE FAILURE IN FLIGHT

Proceed as for engine failure on take-off.

The best gliding speed is 160km/h with the flaps up.

Fuel                          OFF

Magnetos                      OFF

Harness                       Tight

Make the initial approach at 160km/h with flaps up; open the canopy at 50m.  Lower the flaps only when certain of getting into the selected landing area, and aim to cross the boundary at 160km/h with full flap or with flaps up.  At low speeds the rate of descent is very high.

 

ABANDONING

Throttle                      SHUT

Fuel cock                     OFF

Magnetos                      OFF

Airspeed                      110-120km/h

Flaps                         UP

Canopy                        Open

Mic/Tel leads                 Disconnect

Seat Harness                  Release. Ensure parachute harness not released.

The pilot should bale out first, the rear seat occupant following once the pilot is clear of the aircraft.  When baling out, endeavour to dive downwards and away from the aircraft to try to avoid hitting the tailplane.  The aeroplane may be abandoned to either side or inverted.

 

DITCHING

No ditching experience has been obtained for this aircraft, but the following is a general guide.

Harness                       Tight

Canopy                        Shut

Undercarriage                 UP

Approach                      Normal

Touch down                    Tail first at as low an air speed as possible.

 

RADIO FAILURE

Frequency                     Correct frequency selected

Volume                        Maximum

Squelch                       Set

Mic/Tec plug                  Securely inserted

 

ELECTRICAL OVERLOAD

Master switch                 OFF

Reselect ON briefly to permit use of the radio and electrical circuits for limited period.

Land as soon as possible.

 

PROPELLER OVERSPEED

Pitch                         Coarse

Manifold Pressure             Reduce

Land as soon as possible

 

HIGH OIL PRESSURE

Oil Temperature               Monitor

Land as soon as possible

 

LOW FUEL PRESSURE

Primer                        CARB, operate to maintain fuel pressure.

Land as soon as possible.

 

ROUGH RUNNING

Throttle                      Idle, advance slowly, if rough running remains set 72% to clear plugs.

Land as soon as possible

 

AIRBORNE RESTART

Airspeed                      160-220km/h

Throttle                      2 Open

Primer                        CARB, operate

If engine starts

Throttle                      Max power for 1-2 secs

Reset

 

UNDERCARRIAGE FAILURE

Emergency air pressure        Check, 40-50kgf/cm²

U/C selector                  NEUTRAL

U/C emergency tap             Operate

U/C position                  Verify DOWN, three greens and mech. indication.

If the undercarriage fails to lower on the emergency system or insufficient air pressure is available the a/c must be landed wheels UP.  Do NOT retract the U/C after lowering on the emergency system.  Do not close the emerg. air tap until after the engine shut down on landing.

 

FLAP FAILURE

A flapless approach and landing must be carried out.  The approach speed being 160-170 km/h.  The flare and the landing roll will be correspondingly longer.

 

BORINGS IN OIL

If the “Borings in Oil” light illuminates in flight consideration must be given to landing as soon as possible, as this could mean the engine oil contaminated with metallic particles and a potential engine failure.

 







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