SYSTEMS PC-12 Flashcards
WHAT SETS OF THE PUSHER AND SHAKER
EACH COMPUTER CAN ACTIVATE THE SHAKER
BUT BOTH COMPUTERS MUST AGREE BEFORE THE PUSHER IS ACTIVATED
STICK SKAKER PUSHER
USES 2 COMPUTERS
A LEFT AND RIGHT HAND COMPUTER
EACH COMPUTER RUNS OF INPUT SIGNALS FROM ITS ASSOCIATED AOA SENSER AND AIR TO GROUND SQUAT SWITCH
WHEN DOES THE SHAKER PUSHER BECOMES ACTIVE ?
THE SHAKER BECOMES ACTIVE RIGHT AFTER LIFT OFF
THE PUSHER BECOMES ACTIVE 5 SECONDS AND DEACTIVATES ABOVE 163KIAS
WHAT IF THE PUSHER CANNOT BE TESTED ON THE GROUND ?
MAINTENANCE MUST BE CALLED AND TAKE OFF IS NOT PERMITTED
WHAT IS PUSHER ICE MODE ?
WHEN PROP DEICE AND SEPARATOR ARE ACTIVE
[PUSHER ICE MODE]
THE ANGLES OF ATTACK DEFINED ARE REDUCED BY 8 DEGREES
ELECTRICAL SYSTEM
28 VDC SYSTEM BATTERY IS 24 VDC IN THE EVENT OF A DUAL GEN FAILURE THE BATERY CAN SUPPLY POWER AT 20MIN AT 60 AMPS 30MIN AT 50 AMPS
GEN 1
FUNCTIONS TO TURN THE ENGINE DURING STARTING SEQUENCE
PRIMARY SPURCE FOR 28 VDC WHEN THE ENGINE IS RUNNING.
HOW MANY LOADS CAN GEN 1 SUPPLY ?
MAXIMUM LOAD OF 300AMPS WITH A 450 LOAD PERMISSIBLE FOR 2 MINUTES FOR EACH HOUR OF OPERATION
CAN GEN 1 SUPPLY THE WHOLE AIRCRAFTS ELECTRICAL SYSTEM ?
.
HOW DOES THE PC 12 PREVENT OVER HEATING OF THE GENS ?
THERES AN AIR FOW COOLING DUCT ON THE LEFT SIDE OF THE ENGINE COWLING
INVERTERS
THEY FUNCTION TO ONVERT 28VDC TO 26VAC
WHAT ARE THE ESSENTIAL BUSSES ?
THE GEN BUS THE GEN 2 BUS AND THE BATTER BUS
THE [ESSENTIAL BUS CAWS] COMES ON WHEN THE VOLTS DROP BELOW 18V
EXTERNAL POWER SYSTEM
GPU MUST PROVIDE 27-30VDC AT A MIN OF 500AMPS FOR ALL ELECTRICAL-POWERED SYSTEMS.
WHAT IS THE MIN VOTLS FOR A BATTERY START AND OR A GPU START ?
24V FOR A BATTERY START
20V FOR A GPU START
DESCRIBE THE POWER LIINE WHEN THE ENGINE IS RUNNING AND THE GENS ARE BOTH ON LIINE
THE BUS TIE IS CLOSED
THE GEN 2 IS OPEN
GEN 1 POWERS EVERYTHING EXEPT THE GEN 2
WHAT HAPPENS WHEN GEN 2 FAILS ?
THE GEN 2 TIE CLOSES AND THE GEN 1 POWERS THE BATTER AND THE GEN 2 TIE
WHAT HAPPENS WHEN GEN 1 FAILS ?
GEN 2 AND GEN TIE ARE CLOSED
THE GEN 2 CHARGES THE BATTERY AND POWERS EVERYTHING EXCEPT THE NON ESSENTIAL BUS, WHICH AUTOMATICALLY SHEDS POWER TO ANYTHING ON THE BUS
IF YOU NEED TO OPERATE LANDING GEAR, THE NO ESSENTIAL BUS OVERRIDE SWITCH MUST BE USED.
WHAT HAPPENS WHEN BOTH GENS ARE OFF LINE ?
BOTH THE GEN TIE AND THE GEN 2 TIE WLL BE CLOSED ALLOWING THE BATTERY TO SUPPLY THE BUSSES
HOW IS THE BATTERY ISOLATED IN THE EVENT OF AN OVERLOAD FROM EITHER GENS ?
WHEN GEN TIE EXCEEDS 220 AMPS
WHEN GEN 2 EXCEEDS 115 AMPS
THE TIE WILL OPEN AND ISOLATE THE BATTERY.
LANDING GEAR
THE MAIN GEAR IS HELD UP BY HYDRAULICS AND ARE HELD DOWN BY MECHANICAL-DOWN LOCKS
THE NOSE GEAR IS IS HELD DOWN BY THE OVER-CENTER LOCKING DESING
WHEN WILL THE TAXI AND LANDING LIGHT WORK ?
WHEN ALL THE 3 GEAR ASSEMBLIES ARE DOWN AND LOCKED
HYDRAULIC POWER PACK
PRODUCES 2900 PSI
IF THE PUMP FAILS , IT WILL HOLD THE GEAR UP FOR 200 MIN
IF THE PRESSURE FALLS BETWEEN 1800 PSI THE [HYD CAWS] ILLUMINATE
ON THE GROUND MEANS THE PUMP HAS CYCLED MORE THEN 6 TIMES
CABIN PRESSURIZATION SYSTEM
MAX CABIN DIF IS 5.75
SAFTEY VALVE OPENS AT 6.35 AND MAX DIFF IS 6.5
OXYGEN SYSTEM
O2 CYLINDER IS LOCATED IN THE HELL HOLE
OVER PRESSURE PROTECTION PROVIDED BY A RELIEF VALVE
THE GREEN RUPTURE DISCK GOES 2775
CYLINDER IS CHARGES 1850 PSI
HOW LONG WILL A FULLY LOADED O2 CAN LAST FOR ?
2 CREW AND 9 PAX FOR 10MIN
SURFACE DE-ICE SYSTEM
BOOTS ARE HELD BY VACUUM AND INFLATED BY AIR PRESSURE
OPERATES BETWEEEN 14-16PSI
WHEN WILL THERE BE A DE ICE BOOT FAURE ?
WHEN PLEASURE FALLS BELOW 10PSI
PROP DE ICE
ENERGIZES OPPOSING BLADES 3 MODES GREATER THEN 0-SYSTEM IS ON STAND BY 0-16 SYSTEMS WORKS 45 SEC GREATER THEN 16 WORKS FOR 90 SEC
FUEL SYSTEM
2 MAIN TANKS AND 2 COLLECTOR
WHATS HAPPENING WHEN THE [ LOW FUEL PRESS ] CAWWS COMES ON
MEANS THAT COLLECTOR TANK HAS
20GALONS
135LBS
17MIN OR 34 MINS IN TOTAL
TOTAL FUEL CAPACITY
406.8 GALLONS 2735.5LBS
402 GALLONS 2700 ILBS USABLE
HIGH PRESSURE PUMP
800 PSI
FUEL PRESSURE SWICTH
LOCATED BETWEEN THE COLLECTOR TANK AND THE LOW PRESSURE PUMP
FUEL BALANCING
AUTO BALANCING OCCURS WHEN THERE IS A DEF OF 5% OR 2LED SEGMENTS
3 LCD SEGMENTS (178) IS THE MAX AND BALANCING IS REQUIRED
THE AUTO SYSTEM CAN HANDE UP TO 6LCD SEGMENTS THEN MANUAL BALANCING IS REQUIRED
WHAT DOES THE TIM INTERRUPT SWITH DO ?
IT DISRUPTS THE CURRENT TO THE ACTUATOR MOTOR
