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Pilot's Handling
Notes for OO-AGL a Savoia Marchetti S.73 with GR9Kfr Mistral engines
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The three Gnome Rhone 9Kfr Mistral engines have automatic
mixture controls, and are carburetted with manually applied carb heat controls.
They are supercharged to give rated power up to 2300 metres.
ENSURE - AUTOMIXTURE = ON in the FS9 realism screen
before operating Mistral engines.
Each engine can briefly deliver 770hp for take off, or go
around, below 750 metres.
RESTRAIN - RPM < 2410 at all times
OXYGEN - This aircraft is designed to cruise at 3000
metres, but may cruise at 4000 metres as both crew and passengers have oxygen
masks.
CAUTION - This aircraft has fragile flaps.
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Take Off:
FLAP = STAGE 1
CARB HEAT = COLD
TRIM = NEUTRAL
LINE UP
BRAKES = ON
THROTTLE slowly FULL
BRAKES OFF
YOKE - FULL FORWARD to raise tail
WHEN TAIL UP - ROTATE FIRMLY
Establish positive rate of climb
RESTRAIN CLIMB <= 3 m/s VSI
ACCELERATE = 150 KmIAS
FLAP = UP
ACCELERATE = 190 KmIAS
> 3 m/s VSI
Call for Rated power
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Rated power:
Ata = 1.0
190 KmIAS
Plan 975 PPH
Above all obstacles
Call for Climb power
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Climb power:
Ata = 0.9
200 KmIAS
Plan 800 PPH
On reaching 4000 metres
Call for pcruise power
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Max Cruise (3 x 420hp):
Ata = 0.7
Plan 700 PPH
Note: Yields 171 KTAS at FL131 (4Km)
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Design and Econ Cruise (3 x 360hp):
Ata = 0.633
Plan 600 PPH
Note: Yields 159 KTAS at FL131 (4Km)
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Descent:
MAX 310 KmIAS
RPM < 2410
AVOID - shock cooling
Reduce MAP 0.1 Ata per minute MAX
OAT <= 5C CARB HEAT = HOT
Plan 500 PPH
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Circuit, Approach and Landing:
(Before) Downwind leg
OAT <= 5C CARB HEAT = HOT
REDUCE < 200 KmIAS
FLAP = STAGE 1
Late Downwind
REDUCE < 175 KmIAS
FLAP = STAGE 2
LANDING LIGHTS - DEPLOY
Base Leg or Final
CARB HEAT = COLD
REDUCE < 150 KmIAS
FLAP = STAGE 3
Cross airfield boundary @ 110 KmIAS
THROTTLES = RETARD (IF REQUIRED)
(FLARE) ALWAYS LAND ON MAINWHEELS
WHEN TAIL SETTLES - YOKE FULL AFT
FLAP = UP
BRAKES - as required
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