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Pilot's Handling Notes for a Fiat G.12LB with Bristol Pegasus 48 engines
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The three 720hp Bristol Pegasus 48 engines drive constant speed airscrews. They have automated mixture controls and manually applied carb heat controls. Superchargers sustain that rated power up to 4400 metres. Each engine can deliver 1010hp for up to five minutes for TOGA at sea level. The British engines and screws turn CCW causing swing to the right. The virtual flight engineer will operate the oil cooler shutters and select the appropriate supercharger gear ratio throughout the flight according to the engine RPM demanded, current altitude and the weather. The engine cowl flaps are under pilot control in this simulation.

AUTOMIXTURE - This engine has automixture in real life and in MSFS.

The manifold pressure gauges of this aircraft are calibrated in Kg/Cm^2 abbreviated C.

CARB HEAT - When C < 0.8 and OAT < +5C apply CARB HEAT for 30 seconds every few minutes to clear carb ice. Use of CARB HEAT CAUSES significant LOSS OF POWER.

Maximum fuel load is 7,116lbs of 100/130 Octane AVGAS. This is loaded by default in FS9 to allow the longest routes flown in real life, but restricts payload to eleven passengers plus bags.

Post war design cruise altitude is 3000 metres. Operational ceiling is always higher.

The landing gear is approved for use from unpaved (but not unprepared) surfaces. This aircraft has full STOL capability.

Read 'How to fly the Fiat G.12' before flight.

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Take Off phase:

AUTOPILOT = OFF

FLAP = STAGE 1 (one light)

CARB HEAT = COLD

COWLS = 40%

ELEVATOR TRIM = 1 unit cabrata

RUDDER TRIM = sinistra

RPM = MAX

LINE UP

TAILWHEEL LOCK = ON

BRAKES = ON

THROTTLES = FULL

BRAKES = OFF

YOKE = FULL FORWARD to raise tail

TAIL UP - ROTATE FIRMLY

POSITIVE RATE OF CLIMB

GEAR = UP

ACCELERATE = 170 KmIAS

FLAP = UP

ACCELERATE = 210 KmIAS

Call for METO power

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Obstacle Cleranace phase - METO power:

C = 1.25

RPM = 2400

210 KmIAS

COWLS = 40%

Above all obstacles

Call for climb power

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Climb phase power:

VSI <= 3.5 m/s

RPM = 2250

C = 1.09

220 KmIAS

RESTRAIN C to achieve targets above

COWLS = 40%

On reaching 3000 metres

Call for Econ cruise power

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Econ cruise power:

C = 0.875

RPM = 2000

COWLS = CLOSED

Plan 660 PPH

Note: Yields 155 KTAS at 3000M (FL98)

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Max Cruise:

Use to battle headwinds

C = 1.03 (zero PSI boost)

RPM = 2250

COWLS = 20%

Plan 1000 PPH

Note: Yields 190 KTAS at 3000M (FL98)

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Descent phase:

*DO NOT EXCEED -3.5 m/s*

Retain CRUISE RPM

Target prior cruise IAS

DO NOT EXCEED 350 KmIAS

*AVOID SHOCK COOLING*

C reduce @ 0.1 per minute

C => 0.5 (*MIN*)

COWLS = CLOSED

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Holding phase:

FLAP = UP

RPM = 2000

C = as required to achieve

220 KmIAS

COWLS = as required

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Approach Circuit and Landing phase:

C => 0.5 until over boundary fence


*Before Glidepath or Circuit*:

C = 0.5

REDUCE = 170 KmIAS

COWLS = 40%

GEAR = DOWN

FLAP = STAGE 1 & 2 (two lights)

RPM = 2300

C as required to sustain

170 KmIAS


Downwind:

170 KmIAS


Base Leg:

C => 0.5 as required to

Turn final @ 160 KmIAS


Final:

CARB HEAT = COLD

In time to achieve Vref

FLAP = STAGE 3 (four lights)

Cross airfield boundary @ 140 KmIAS (all weights)

C < 0.5 allowed

FLARE

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After landing phase:

After mainwheel contact

CORRECT any drift

PULL TAILWHEEL GENTLY INTO CONTACT

YOKE FULL AFT

COWLS = FULL OPEN

FLAP = UP

BRAKES = as required

TAILWHEEL = UNLOCK before taxi

RPM = MAX before taxi

Nose engine = SHUT DOWN
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