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From Flashcardlet > C-12C > Flashcards

C-12C Flashcards

0
Q

Airspeed limit for retracting the landing gear?

A

163 KIAS

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1
Q

Airspeed limit for extending landing gear & flight with gear extended?

A

181 KIAS

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2
Q

The airspeed limit for APPROACH extension, 40% of the wing flaps is?

A

199 KIAS

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3
Q

The airspeed limit for full DOWN extension, 100% of the wing flaps ?

A

143 KIAS

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4
Q

NOTE
Single engine stall speed may be higher
than Vmc
The minimum single engine control airspeed
(Vmc) at sea level standard conditions is?

A

86 KIAS

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5
Q

The maximum design maneuvering speed for flaps retracted is?

And for flaps fully extended at 12,500 pounds?

A

181 KIAS

111 KIAS

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6
Q

Anytime an operational limit is exceeded what must be accomplished?

A

an appropriate entry shall be made on DA Form 2408–
13–1. Entry shall state the limit or limits that were
exceeded, range, time beyond limits, and any
additional data that would aid maintenance personnel
in the maintenance action that may be required.

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7
Q

The maximum propeller overspeed limit is?

A

2200 RPM

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8
Q

Propeller speeds above 2000 RPM indicate?

A

Failure of the constant speed (PRIMARY) governor

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9
Q

Propeller speeds above 2120 RPM indicate?

A

Failure of both PRIMARY and OVERSPEED governors

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10
Q

Torque is limited to what % for sustained operation

above 2000 RPM?

A

81%

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11
Q

Pneumatic Pressure Limits

A

12-20 psi normal, 20 psi MAX

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12
Q

Prop Deice Normal Operation

A

14-18 Amps Normal Operation

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13
Q

Starter Limits

A

40 seconds On, 60 seconds Off
40 seconds On, 60 seconds Off
40 seconds On, 30 minutes Off

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14
Q

Operation of the autopilot and yaw damper is

prohibited during?

A

Prohibited during takeoff and landing and below 200 feet above terrain

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15
Q

Operation with FUEL PRESS light on is limited to?

A

Operation with FUEL PRESS light on is limited to 10 hours.

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16
Q

When is Crossfeeding fuel tanks authorized?

A

Crossfeed only during single engine operation

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17
Q

Brake Deice Temperature Limit:

A

The brake deice system shall not be operated, except to test, at ambient temperatures above 15 °C

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18
Q

Brake Deice Time Limit:

A

Brake deice system shall not be operated longer than 10 minutes, one timer cycle, with the landing gear retracted. If operation does not automatically terminate approximately 10 minutes after gear retraction, turn BRAKE DEICE switch off.

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19
Q

Brake Deice Single Engine Limit:

A

BRAKE DEICE switch shall be turned off during single engine operation, in order to maintain an adequate supply of systems pneumatic bleed air.

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20
Q

Maximum Gross Takeoff Weight?

A

Maximum Gross Takeoff Weight (GTOW) is 13,500 pounds

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21
Q

Maximum Gross Landing Weight?

A

Maximum gross landing weight is 12,500 pounds.

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22
Q

Maximum Ramp Weight?

A

Maximum ramp weight is 13,590 pounds

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23
Q

Recommended turbulent air penetration

airspeed:

A

170 KIAS

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24
Q

Bank limits are:

A

Bank limits are 60° left or right

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25
Q

Pitch limits are:

A

Pitch limits are 30° above or below the

horizon

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26
Q

One oxygen mask must be provided for?

A

One oxygen mask must be provided for each

passenger and crewmember

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27
Q

A minimum ___________supply of supplemental oxygen shall be available
during flight at or above an altitude of 25,000 feet based on the highest total aircraft oxygen flow rates.

A

A minimum 10–minute supply of supplemental oxygen shall be available during flight at or above an altitude of 25,000 feet based on the highest total aircraft oxygen flow rates.

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28
Q

Maximum cabin differential pressure is?

A

Maximum cabin differential pressure is 6.1 psi

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29
Q

During an ILS approach, do not operate the

propellers in the______to______RPM range.

A

During an ILS approach, do not operate the

propellers in the 1750 to 1850 RPM range.

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30
Q

In-flight engine cuts below the safe one-engine

inoperative speed of Vsse,_____KIAS are prohibited.

A

In-flight engine cuts below the safe one-engine

inoperative speed of Vsse, 104 KIAS are prohibited.

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31
Q

Except in an emergency, propellers should
be moved out of reverse above______knots to
minimize propeller blade erosion, and during crosswind, to minimize stress imposed on propeller, engine and airframe.

A

Except in an emergency, propellers should
be moved out of reverse above 40 knots to
minimize propeller blade erosion, and during crosswind, to minimize stress imposed on propeller, engine and airframe.

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32
Q

Maximum sink rate at touchdown (12,500 pounds) _____ FPM

A

Maximum sink rate at touchdown (12,500 pounds)…………600 FPM

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33
Q

Army Model C-12 is in which weight & balance class?

A

Army Model C-12 is in class 2.

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34
Q

A cold oil check is unreliable. Oil should be checked within____minutes after stopping engine.

A

A cold oil check is unreliable. Oil should

be checked within 10 minutes after stopping engine.

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35
Q

If more than 10 minutes have elapsed, motor engine for____seconds then recheck. If more than 10 hours have elapsed, run engine for____minutes, then recheck.

A

If more than 10 minutes have elapsed, motor engine for 40 seconds then recheck. If more than 10 hours have elapsed, run engine for 2 minutes, then recheck.

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36
Q

If the ignition does not occur within____seconds after moving condition lever to LOW IDLE, initiate Engine Clearing procedure.

A

If the ignition does not occur within
10 seconds after moving condition lever to
LOW IDLE, initiate Engine Clearing
procedure.

37
Q

Monitor TGT to avoid a hot start. If there is
a rapid rise in TGT, be prepared to abort the start before limits are exceeded. During starting, the maximum allowable TGT is______°C for___seconds.

A

Monitor TGT to avoid a hot start. If there is
a rapid rise in TGT, be prepared to abort
the start before limits are exceeded.
During starting, the maximum allowable
TGT is 1000 °C for 5 seconds.

38
Q 
8-24. ABORT START:
1.
2.
3.
4.
A

8-24. ABORT START.
1. CONDITION lever – FUEL CUTOFF.
2. IGNITION AND ENGINE STARTER switch
– STARTER ONLY.
3. TGT – Monitor for drop in temperature.
4. Ignition and engine starter switch – OFF after TGT is below 750 C.

39
Q 
8-25. ENGINE CLEARING.
1.
2.
3.
4.
A

8-25. ENGINE CLEARING.

  1. CONDITION lever – FUEL CUTOFF.
  2. IGNITION AND ENGINE STARTER switch – OFF (1-minute minimum).
  3. IGNITION AND ENGINE STARTER switch – STARTER ONLY (15 seconds minimum, 40 seconds maximum).
  4. IGNITION AND ENGINE STARTER switch – OFF.
40
Q

ENGINE CLEARING CAUTION:

A

8-25. ENGINE CLEARING.
CAUTION
Do not exceed starter limitation of 40 seconds on and 60 seconds off for two starting attempts and engine clearing procedure. Allow 30 minutes off before additional starter operation.

41
Q

Brake Deice: when should you cycle?

A

Brake deice control valves may become inoperative if valves are not cycled periodically. One cycle of the valves is required daily, regardless of weather conditions.

42
Q

WX Radar CAUTION:

A

Do not operate radar in congested areas.
CAUTION
Do not operate the weather radar system in a confined space where the nearest metal wall is 50 feet or less from the antenna reflector. Scanning such surfaces within 50 feet of the antenna may damage receiver crystals.

43
Q 
AC/DC power check:
a.
b.
c.
d.
A
  1. AC/DC power – Check as follows:
    a. AC frequency – 394 - 406 Hz.
    b. AC voltage – 104 -124 Vac.
    c. DC load – 85% maximum per generator.
    d. DC voltage – 28 - 28.5 Vdc.
44
Q

Autofeather Check Torques:

A

d. POWER levers – Advance until IGN ON lights are extinguished and AUTOFEATHER lights are illuminated, approximately 22% torque.
e. #1 POWER lever – Retard and check.
(1) At 16 – 21% torque – #2
AUTOFEATHER light out, #1 IGN ON light illuminated.
(2) At 9 – 14% torque – Both AUTOFEATHER lights out (propeller starts to feather).

45
Q

Overspeed GOV / Rudder Boost Check Prop RPMs:

A

POWER lever – Increase until propeller is stabilized at 1830 – 1910 RPM. Continue to increase until rudder movement is noted. Ensure prop RPM remains 1830 – 1910 (Observe ITT and torque limits.)

46
Q

ICE VANE Check TQs, Temps, Lights:

A

ICE VANE switches – EXTEND. Verify torque drop, TGT increase, illumination of VANE EXT light and visually confirm the bypass doors are open. Maximum allowable time for the complete operation is 15 seconds – Check.

47
Q

DEICE Single CYCLE AUTO, what to look for:

A

DEICE switch – SINGLE CYCLE AUTO.
Check for a drop in pneumatic pressure and wing deice boots inflation and after 6 seconds for a second drop in pneumatic pressure.

48
Q

Maximum demonstrated crosswind:

A

Maximum demonstrated crosswind component is 25 knots.

49
Q 
After Takeoff Steps:
1.
2.
3.
4.
5.
A
  1. GEAR – UP.
  2. FLAPS (105 KIAS) – UP.
  3. LANDING LIGHTS – OFF.
  4. Climb power – Set.
  5. PROP SYNC switch – As required.
50
Q

Cruise Climb Prop RPM:

A

8-35. CLIMB.

Set propellers at 1900 RPM and torque at 100% (or maximum climb TGT).

51
Q

Cruise Climb Airspeed Schedule:

SL to 10,000 feet
10,000 to 20,000 feet
20,000 to 25,000 feet
25,000 to 31,000 feet

A

a. Cruise Climb. Cruise climb is performed at
a speed that is the best combination of climb, fuel burn-off, and distance covered. Set propellers at 1900 RPM and torque at 100% (or maximum climb TGT). Adhere to the following airspeed schedule as closely as possible.
SL to 10,000 feet….……..…………155 KIAS
10,000 to 20,000 feet………………135 KIAS
20,000 to 25,000 feet………………125 KIAS
25,000 to 31,000 feet.……………..115 KIAS

52
Q

When must Ice Vanes be extended?

A

Ice vanes must be extended when operating in visible moisture at +5 °C or less. Visible moisture is any form of clouds, ice crystals, snow, rain, sleet, hail, or any combination of these.

53
Q

When should windshield heat be placed to NORMAL?

A

Turn the windshield heat on to NORMAL when passing 10,000 feet MSL or prior to entering the freezing level, whichever comes first. Leave
on until no longer required during descent for landing. HIGH temperature may be selected as
required after a minimum warmup period of 15 minutes.

54
Q

Speed check for FLAPS APPROACH?

A

FLAPS (below 199 KIAS) – APPROACH.

55
Q

Speed check for GEAR DOWN?

A

GEAR (below 181 KIAS) – DOWN

56
Q

TGT check for Shutdown?

A

TGT – Check. TGT must be 660 C or below for 1 minute prior to shutdown.

57
Q

Stall warning horn activates when?

A

The warning horn starts to alarm approximately

5 to 10 knots above stall speed with the aircraft in any configuration.

58
Q

Technique for determining ice buildup?

A

Total ice accumulation of 2 inches or more on the wing surfaces. Determination of ice thickness can be accomplished by summing the estimated ice thickness on the wing prior to each pneumatic boot deice cycle (e.g., four cycles of minimum recommended 1/2-inch accumulation).

59
Q

Recommended Turbulence penetration speed?

A

The recommended penetration speed in severe turbulence is 170 KIAS.

60
Q

One condition indicative of icing?

A

A 30% increase in torque per engine required to maintain a desired airspeed in level flight, not to exceed 85% torque, when operating at recommended holding/loiter speed.

61
Q

How much ice should accumulate before activating the deicer boots?

A

Allow at least 1/2-inch of ice on the boots before activating the deicer boots to remove the ice.

62
Q

Should you activate FLAPS in icing conditions?

A

Do not extend flaps during extended operation in icing conditions. If the flaps are extended, do not retract them until the airframe is clear of ice.

63
Q

Engine Malfunction Before V1 (Abort): If
an engine fails and the aircraft has not accelerated to recommended decision speed (V1), retard POWER levers immediately to IDLE and stop the aircraft with brakes and if necessary reverse thrust. Perform the following:
1.
2.

A
  1. POWER levers – IDLE.

2. Braking – As required.

64
Q

Max crosswind component tested?

A

25 kts

65
Q

Min airspeed for Reverse?

A

40 kts (prevent blade erosion)

66
Q

Vmc Flaps Up

A

Vmc Flaps Up = 91 kts

67
Q

Vsse safe one engine operating speed?

A

110 kias safe one-engine operating speed

68
Q

Va Full Flaps

A

111 kias Va Full Flaps

69
Q

Vyse 12,500 lbs

A

121 kias Vyse 12,500 lbs

70
Q

Max speed for manual gear extension?

A

130 kias max speed for manual gear extension

71
Q

Min speed during sustained ice operation?

A

140 kias during sustained ice operations

72
Q

Max speed Full Flaps

A

143 kias max speed Full Flaps

73
Q

Max speed for landing gear retraction?

A

163 kias max for landing gear retraction

74
Q

Max tire speed limit?

A

165 kias max speed tire limit

75
Q

Recommended Turbulence penetration speed?

A

170 kias recommended turbulence speed

76
Q

Max speed for landing gear extension?

A

181 kias max speed landing gear extension

77
Q

Flaps approach max extension speed

A

199 kias max for Flaps Approach

78
Q

Max airspeed below 10,000’ msl?

A

250 kias max below 10,000’ msl

79
Q

Prop speed below 1600 = Max Torque?

A

49% Torque Max if Prop Speed 1600 or less

80
Q

Prop normal range?

A

1600 - 2000 rpm is prop normal range

81
Q

Max Reverse Prop Speed?

A

1900 rpm is max prop speed for reverse

82
Q

Prop Speed 2000 - 2080 indicates?

A

Primary Governor Failure (& TQ limit 81%)

83
Q

Prop Speed 2120 indicates?

A

Pri Gov Failure & Fuel Topping Gov Fail

84
Q

Max Prop Transient Speed?

A

2200 rpm is the max prop transient speed

85
Q

What torque is auto-ignition activated?

A

20% TQ Auto Ignition On

86
Q

Max Torque below 1600 prop rpm?

A

49% max torque 1600 rpm prop

87
Q

Max Torque with oil pressure 60-85 psi?

A

49% max torque for oil pressure 60-85psi

88
Q

Max Torque above 2000 prop rpm?

A

81% max torque for above 2000 prop rpm

89
Q

Max Continuous Torque, Max Cruise Torque

A

100% max cont and cruise torque

90
Q

Max Transient Torque?

A

123% max transient TQ

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