421C Flashcards
(138 cards)
1
Q
Max ramp weight
A
7500 pounds
2
Q
Max take off weight
A
7450 pounds
3
Q
Max landing weight
A
7200 pounds
4
Q
Ground roll (100 kias, 0 flaps, 7450 lbs with max t /o weight)
A
1786 feet
5
Q
Take off over 50’ obstacle (100 kias, 5 degrees of flaps, 7200 pounds)
A
2293 feet
6
Q
Take off over 50’ obstacle ( 100 Kias, 0 flaps 7450 pounds t/o weight)
A
2323
7
Q
Wing loading of the Cessna 421C
A
34.7 pounds per square foot
8
Q
Power load of Cessna 421C
A
9.9 pounds per per horsepower
9
Q
Oil capacity
A
28 quarts
10
Q
Engine model
A
GTSIO-520-27
375 horsepower
11
Q
Horsepower if the GTSIO-520-N
A
375 horsepower
12
Q
Popeller diameter
A
7’ 6”
13
Q
Critical altitude
A
20,000
14
Q
Wingspan
A
41.125”
15
Q
What is the Height of the 421C?
A
12.93’
16
Q
What is the length of the 421C?
A
36.38’
17
Q
What is the ground clearance of the props on a 421C?
A
8.52”
18
Q
What is the oil amount minimum?
A
9 Quarts minimum.
Fill to 10-quarts for normal flights less than 3 hours. For extended flights fill to capacity.
19
Q
How much oil can be in each engine?
A
13 quarts plus one quart for oil filter for a total of 14 Quarts
28 Quarts total for both engines
20
Q
How much baggage can be in each wing locker?
A
200 pounds in each.
When optional wing locker is installed, the applicable wing locker baggage capacity is reduced to 40 pounds
21
Q
How much weight can be loaded in nose bay?
A
350 pounds less installed optional equipment
22
Q
What is maneuvering speed?
A
151 KIAS
23
Q
Maximum Flap Extended Speed for 15 degrees and 45 degrees respectively
A
15 degrees: 176 KIAS
45 Degrees: 146 KIAS
24
Q
Max gear operating speed
A
176 KIAS
25
Air Minimum Control Speed
VMCA (knots) = 80 Knots
Remember this is the minimum flight speed at which the airplane is controllable with one engine inoperative and a 5 degree bank towards the operative engine.
26
Never Exceed Speed
VNE = 240 KIAS
27
Maximum Structural Cruising speed
VNO = 201 KIAS
28
One Engine Inoperative Best Rate-of-Climb Speed
VY SE = 111 KIAS
29
White arc range
77 to 146 KIAS
VSO = 77 KIAS
VFE = 146 KIAS
30
Green arc Range
86 to 201
Vs1 = 86 KIAS
Maximum Structural Cruising speed = 201 KIAS
31
Blue line speed
111 KIAS
| One Engine Operative Best Rate-of-Climb speed at sea level standard day conditions and 7450 pounds weight.
32
What is the maximum RPM?
2235 RPM
33
What is maximum Manifold Pressure
39.0 inches Hg. Sea Level - 20,000
| Above 20,000 feet it will decrease
34
Maximum Cylinder Head Temperature
Normal 200- 460
| Maximum 460 Degrees F
35
Max Aft Cabin (Bay A) weight
400 pounds (200 pounds per side)
Max Aft Cabin (Bay B) is 100 pounds (50 pounds per side)
36
Max Aft Cabin (BayB) weight
100 pounds (50 pounds per side)
Max Aft Cabin (Bay A) 400 (200 pounds per side)
37
What is the maximum aft limit of CG?
157.96 inches aft of reference datum
38
What is the forward CG
152.59 inches aft of reference datum
39
Where is the reference datum located?
100 inches forward of forward face of the fuselage bulkhead forward of the rudder pedals.
40
What is the maximum side slip duration time?
30 seconds
| Side slipe is defined as any time the ball is more than 1/2 out of center (coordinated flight) position.
41
Cabin pressurization limit
5.3 PSI
42
Maximum operating altitude limit
30,000' with oxygen equipment
| 25,000' without oxygen equipment
43
When can you initiate a transfer from the wing locker tank?
when fuel quantity is less than 400 lbs per tank but before you have less than 200 lbs per tank
44
Engine Failure After Takeoff (speed above 100 KIAS with Gear Up Or In Transit
1: Mixtures: FULL RICH
2: Propellers: FULL FORWARD
3: Throttles: FULL FORWARD (39.0 Inches Hg.)
4: Landing Gear: CHECK UP
5: Inoperative Engine:
a. Throttle: CLOSED
b. Mixture: IDLE CUT-OFF
c. Propeller: FEATHER
6: Establish Bank: 5 degrees toward operative engine
7: Climb to Clear of 50- foot obstacle - 100 KIAS
8: Climb at ONE Engine Inoperative Best Rate-of-Clime Speed 111 KIAS
9: Trim tabs: ADJUST 5-degree bank toward operative engine with approximately 1/2 ball slip indicated on the turn and bank indicator
Proceed to Inoperative Engine secure checklist
45
Engine Failure During Flight (speed above Minimum Control Speed)
1: Inoperative Engine: DETERMINE. Idle engine Same side as idle foot
2: Operative Engine: ADJUST as required
3: Fuel Flow: CHECK. If deficient, position auxiliary fuel pump switch to ON.
4. Fuel Selectors: MAIN TANKS (Feel for Detent)
5. Fuel Quantity. CHECK. Switch to opposite MAIN TANK if necessary.
6. Oil Pressure and Oil Temperature: CHECK. Shutdown engine if oil pressure is low
7. Magneto Switches: CHECK ON
8. Mixture: ADJUST. Lean until manifold pressure begins to increase then enrichen as power increases
If engine does not start, follow secure checklist
46
What is best glide speed
122 KIAS at max gross (7450 lbs) with landing gear and wing flaps up.
```
6800 = 116 KIAS
6200 = 111 KIAS
5600 = 105 KIAS
```
47
What is the maximum demonstrated crosswind velocity
17 knots
48
What is the limit time on starter cranking time?
30 seconds.
If cranking longer than 30 seconds is required, allow starter motor to cool for five minutes before cranking again since excessive heat may damage the armature windings.
49
During before take off checklist, what do you set "cabin altitude" with regards to the pressurization system?
Cabin Altitude: SET 500 feet above field pressure altitude
50
What is rotate speed?
95 KIAS
51
What are cruise climb RPM and manifold pressure settings?
1900 RPM and 32.5 inches Hg.
52
How much usable fuel?
206 gallons in main wing tanks
28 gallons in wing locker
234 TOTAL
53
What should tire pressure be on mains and nose respectively?
Main: 70 PSI
Nose: 35 PSI
54
What are the main gear strut extensions?
Main: 1-3 " pref. 2.7"
Nose: 1-2" pref. 1.37"
55
At what RPM do you do magneto check?
1500 RPM
| 100 or less drop in RPM and within 50 PRM of each other
56
What is my expected fuel flow 75% cruise power?
45 GPH
57
Max differential pressure?
5.3 psi
58
How much ice should accumulate before activating deice boots
1/4" - 1/2" at 45-second intervals max
59
Wheelbase between mains?
17' 5'
60
Which engine inflates the inflatable door seal?
Left engine through a valve actuated by the forward latching pin of the upper door. When the upper cabin door locking pins are disengaged, the door seal is depressurized to allow the door to be opened and closed easily.
61
what voltage are the alternators?
28 volts
62
What is the emergency alternator field switch used for?
The emergency alternator field switch is used when the alternators will not self-excite. Placing the switch in the on position provides excitation from the battery, even when the battery relay does not close.
63
What do you do with alternators for a ground power source start?
Be sure that alternators are OFF for external power start.
64
What do you do with the battery switch for a ground power source start?
The battery switch should be ON during the entire ground power operation to protect electrical system equipment against transient voltage variations.
Do NOT leave the battery on with external power connected for more than 30 minutes
65
At what voltage will the "Low Volt" Annunciator illuminate?
less than 25 volts
66
When will CABIN ALT" illuminate?
Cabin Altitude has exceeded 10,000 feet. (pilot should consider the need for oxygen"
67
When will "L FUEL" and "R FUEL' illuminate?
Indicated main tank has 60 pounds of usable fuel remaining
68
What is the "A COND HYD" on the annunciator indicate?
The air conditioner compressor is operating.
69
What is the purpose of the vent system in each fuel tank?
Maintains positive internal tank pressures
70
Which switch controls the wing locker tank's heated vent?
STALL HEAT switch
71
Where are the fuel drains located?
2 for main tank
1 for fuel filter
2 crossfeed lines
1 fuel locker (left side)
72
What are the three sources for induction air?
Primary Source: Turbo charger air scoops on the inboard side of each nacelle
Automatic Alternate Source: Through a magnetically held door on the inboard side of each nacelle
Manual Alternate Source: Controlled by push-pull knob on the lower side of the pilot's instrument panel. Pulling knob will open a sleeve to admit warm, unfiltered nacelle air into the induction system.
73
Why do you need to discontinue pressurization when using alternate induction air?
Alternate induction air is not filtered and contamination of the cabin air supply is possible.
74
What is the minimum oil temperature for take-off and why?
75 degrees F.
| to ensure proper operation of the turbocharger wastegate actuator
75
How does one ensure turbo has cooled before shutdown?
Run engine at idle for 2-3 minutes
76
What is required on airplane for flight into known icing conditions?
1: Heated Stall warning vane or optional angle-of-attack sensor
2: Heated pilot's windshield
3: Minimum of one heated pitot head
4: Heated static ports
5: Inboard and outboard wing and empennage boots including the left wing ice detection light
6: Heated propeller boots
7: 100-ampere alternators
8: heated wing locker fuel tank vents if wing locker tank is installed.
77
Which de-ice boots inflate first and for how long?
empennage boots inflate first for 6 seconds and then main wing boots for the second 6 seconds.
a "SURFACE DE ICE" Annunciator light should illuminated when empennage boots reach appropriate pressure. If the light does not illuminate, it has not reached appropriate pressure for proper function.
78
How long does it take for de-ice boot system to deflate?
45 seconds
79
How long is a full cycle of the de-ice boot system?
57 Seconds Total Time
12 seconds for both empennage and main wing boots (6 seconds each)
45 seconds for boots to completely deflate.
80
when should you use boots in icing conditions?
when ice accumulates between 1/4 & 1/2 inch.
81
What problem do you encounter with regards to compass when heated windshield is operating
Magnetic compass is unreliable while windshield heat is on
82
When should you activate electric windshield?
1: SET HIGH: Before take off check voltmeter and annunciator
2: SET LOW: Before visible moisture with flight temp. -12 - 4.4 degrees Celsius (-10 to 40 F)
3: SET HIGH: Before entering visible moisture and temp below -12 C (10 degrees F)
4: If ice begins to accumulate on heated portion of windshield during LOW operation, set to HIGH
83
How are the heated propeller elements cycled?
The propeller deicing only heats one propeller at a time.
Each propeller has an inboard and outboard heating element.
The inboard element heats for 20 seconds, then outboard element for 20 seconds on the first propeller then the same cycle on the oposite side propeller.
84
When should you activate prop anti-ice?
prior to entering visible moisture with an outside temp below 4.4 degrees C
85
what is the procedure if engine begins to vibrate while prop aniti-ice is activated?
Exercises the propellers to maximum rpm in an attempt to dislodge accumulation on the propellers to maximum RPM.
Deice ammeters should be checked in green arc with slight fluctuations each 20 seconds. If ammeter is not in the green arc for one or both propellers, remove power from affected propeller by turning switch off or by pulling circuit breaker.
86
When should static and pitot heat be activated?
Before visible moisture below 4.4 degrees C (40 degrees F)
87
What is the steering angle maximum either side of center?
18 degrees either side of center
88
What is the normal fuel pressure range?
3.9 - 18.7 psi
| Max: 19.2 psi
89
What is maximum fuel pressure
19.2 psi
90
What is the total amount of fuel on the 421C?
213.4 gallons total in main wing tanks (106.7 per side)
206 gallons usable in main wing tanks (103 a side)
Wing Locker:
28.4 total fuel
28 gallons usable
Total usable 234 gallons
Grand total fuel 241.8 gallons
7.4 unusable in mains, .4 gallons in Wing Locker. 7.8 total unusable fuel
91
What is the distance from nose wheel and main gear laterally?
8' 8"
92
Where is the microswitch located that indicates if the door is appropriately latched?
The microswitch is activated by the forward latch pin on the upper door.
93
On which side is the trim tab located on the empennage?
Right trailing edge of the horizontal stabilizer
94
Yellow Arc on airspeed indicator
201 to 240 KIAS
95
Red Radial on airspeed indicator
240 KIAS
96
What are the RPM ranges for 421C?
Green Arc: 1,600 - 1,900
Yellow Arc: 1,900 - 2,185
Green Arc: 2,185 - 2,235
Red Radial: 2,235
97
Min and maximum oil pressure limitations
10 psi and 100 psi
98
Normal operating RPM (green arc)
1600 -1900 RPM
1600 - 1900 Green arc
1900 - 2185 Yellow arc
2185 - 2235 Green arc
99
Yellow arc on RPM
1900 - 2185 RPM
100
Normal manifold range (green arc)
17 - 32.5 “Hg
101
Normal oil temp (green arc)
75 - 240 degrees C
| Redline 240 Degrees C
102
Normal operating oil pressure
30 - 60 psi (green arc)
| Red lines at 10 and 100 psi
103
Normal cylinder head temperature
200 to 460 Degrees C
104
What is normal fuel flow range
20- 275 pounds per hour
105
Normal cabin pressurization
0 - 5.0 psi
Maximum 5.3 psi
106
What is the max weight accelerate stop distance at sea level
2630
107
What is the accelerate go distance at max weight and sea level
4960 feet
108
What are the RPM ranges for 421C?
Green Arc: 1,600 - 1,900
Yellow Arc: 1,900 - 2,185
Green Arc: 2,185 - 2,235
Red Radial: 2,235
109
Manifold limitations on gauge.
Green arc: 17 - 32.5 in. Hg
Blue arc: Maximum at altitudes
Red Radial: 39.0 in. Hg
110
Oil Pressure gauge
| Red radial, green arc, and red radial
Lower Red Radial: 10 psi
Green arc: 30 - 60 psi
Upper Red Radial: 100 psi
111
Cylinder head temperature gauge
| Green arc and red radial
Green arc: 200 - 460 degrees F
| Red Radial: 460 degrees F
112
what kind of battery is on the 421C?
24 volt (nominal), 24 ampere hour, air-cooled, lead-acid battery
113
how are the alternators connected to one another?
The two alternators are connected to one another in parallel
114
What is the Hot Battery Bus?
The hot battery bus provides power for the operation of essential equipment, the cabin threshold light circuit, step lights, (if installed), and other optional items when the battery and alternators are not on.
Items: Emergency alternator field switch, clock, entrance door courtesy light, flight hour recorder, passenger reading lights, passenger advisory lights, and nose and wing locker baggage compartment lights
115
For the battery relay, how many volts are required for it to close?
17 volts
116
How long is the limit for battery switch to be left on without alternators being on?
30 minutes
117
Below what voltage does the "LOW VOLT" illuminate?
25 volts
118
What percentage of systems is a single alternator capable of providing power for?
approximately 80%
119
What type of power does an alternator produce (AC vs DC)?
The alternator produces AC power, but uses a rectifier to convert it to DC power, which is then distributed to the airplane.
120
When is the alternators' overvoltage relay activated?
When alternator output exceeds 32.4 volts.
121
When does the "ALT OUT" light illuminate?
When alternator output drops below 11 volts
122
Where is the fuel filter located?
Each engine fuel filter is located under the selector valve in the lower forward fuselage. The fuel filter is drained during preflight using a quick-drain valve (fuel strainer) located under fuselage
123
Where does the heater draw its fuel from
The cabin heater draws its fuel from the crossfeed lines
124
What results when closing the crossfeed shut off lever?
Fuel to crossfeed line is blocked, terminating any fuel crossfeed or continued heater operation. the action would be used in event of a nacelle, wing, or fuselage fire, or impending weels-up landing.
125
Does the fuel transfer pump shut off on its own?
No, a pressure switch in each transfer line senses a drop in pressure and illuminates "L TRANS" annunciator, which indicates fuel transfer is complete and that the wing locker transfer pump should be turned off
126
What is the average transfere time for fuel locker tank fuel?
60 minutes
127
What type of probe is in the wing to provide fuel quantity?
Capacitance-probe
| There are three internally mounted fuel tank probes per wing.
128
How is the turbocharger controlled?
Controlled by a modulated exhaust incorporating a wastegate valve. The wastegate valve is springloaded open and hydraulically modulated toward the closed position by oil pressure supplied from the engine oil pump.
The engine oil pressure for wastegate actuator operation is controlled by an absolute pressure controller (APC).
129
below which rpm should you keep engine operations while on the ground to help ensure proper turbocharger cooling?
1,600 RPM
130
What does the fuel system consist of ?
Main tank, Aux fuel pump, Fuel selector, Fuel filter, Engine-driven fuel injection pump, Engine Fuel Control Unit, Engine manifold, Fuel injector nozzles
131
how long does it take for fuel transfer from aux tank to main tank?
About 60 minutes
132
How wide is the nose compartment at its wides point?
55.7” wide
133
What is the gear reduction ratio on the geared engine on the 421C?
4.3 between engine and propeller RPM
134
Overboosting above how many inches of Hg should be written up for maintenance?
40 inches Hg
135
What is the yellow RPM range?
The normal vibration range and should be avoided 1900 - 2185 RPM
136
Which Propeller is the “master” and “slave” prop with regards to synchrophaser?
```
Right = Master
Left = Slave
```
137
How does the prop synchronizer/synchrophaser work?
Magnetic pickups are on each governor of each propeller. Signals of the RPM discrepancies are sent from a controller of each side to an electrical actuator on each nacelle. The actuator is mechanically connected to the governor on the SLAVE engine and it adjusts the governor settings of the slave engine to match the master’s (without changing governor control levers’ positions)
138
At what percent of power is required for single engine to provide pressurization?
Single Engine: 65%
| Both Engines: 45% on each engine
