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C-12U3 > Limits > Flashcards

Limits Flashcards

1
Q

Max GWT Takeoff

A

14,000 lbs

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2
Q

Max GWT Landing

A

12,500 lbs

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3
Q

Max Ramp Weight

A

14,090 lbs

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4
Q

Max Zero Fuel Weight

A

11,000 lbs

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5
Q

Max Fuel Imbalance

A

1,000 lbs

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6
Q

At what fuel quantity should takeoffs and go-around NOT be conducted?

A

Below 265 lbs in each main tank

yellow arc

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7
Q

Max Toilet Weight

Takeoff and Landing

A

238 lbs

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8
Q

Max Cabin Airstair Door Weight

A

300 lbs

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9
Q

Max Operating Altitude

A

35,000’

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10
Q

Max Cabin Pressure Altitude

A

10,000’

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11
Q

Autopilot Operation Limits

A
  1. Min 200’ AGL (incl. T/O and Landing)
  2. Min 120 KIAS for an approach
  3. Prohibited in severe icing conditions
  4. Prohibited w/ a pitch trim malfunction
  5. A pilot must be at controls w/ seatbelt and shoulder harness fastened
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12
Q

Ice Vanes Retracted (°C)

A

15°C and above

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13
Q

Ice Vanes Extended (°C)

A

5°C or less

when flight free of visible moisture cannot be assured

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14
Q

Landing Gear Cycle Limits

A

1 every 5 min
6 cycles total
15 min cool-down

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15
Q

V(yse)

A

Best single-engine rate-of-climb (blue line)

121 KIAS
12,500 lbs GWT, forward gross loading, standard day conditions

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16
Q

V(1)

A

Takeoff decision speed
(Max abort speed)

111 KIAS
Standard conditions @ 12,500 lbs GWT

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17
Q

V(r)

A

Rotate speed

111 KIAS
@ 12,500 lbs GWT

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18
Q

V(mo)/M(mo)

A

Max operating limit speed (red stripe)

259 KIAS or .52 Mach

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19
Q

V(a)

A

Max design maneuvering speed

181 KIAS (flaps up)
111 KIAS (flaps full down)
*@12,500 lbs*
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20
Q

V(b)

A

Recommended turbulence penetration speed

170 KIAS

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21
Q

V(f)

A

Max speed flaps approach (white triangle)

200 KIAS

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22
Q

V(fe)

A

Max speed flaps full (down)

157 KIAS

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23
Q

V(mca)

A

Min single-engine control speed (red line)

Flaps Up = 91 KIAS
Flaps App = 88 KIAS
Flaps Full = 78 KIAS
standard day conditions

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24
Q

V(ref)

A

Landing reference speed
(Threshold crossing)

102 KIAS

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25
Q

V(y)

A

Best rate-of-climb speed

Below FL100: 160 KIAS
FL100 to FL200: 140 KIAS
FL200 to FL250: 130 KIAS
FL250 to FL350: 120 KIAS

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26
Q

V(le)

A

Max landing gear extended speed

181 KIAS

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27
Q

V(loe)

A

Max landing gear extension operating speed

181 KIAS

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28
Q

V(lor)

A

Max landing gear retraction operating speed

163 KIAS

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29
Q

V(sse)

A

Min safe one engine cutoff speed

117 KIAS

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30
Q

Max Airspeed for Effective Windshield Anti-icing

A

226 KIAS

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31
Q

Min Airspeed for Sustained Flight in Icing Conditions

A

140 KIAS

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32
Q

Min Coupled Approach Speed

A

120 KIAS

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33
Q

Max Tire Speeds

A 
155 kts (standard)
139 kts (high flotation)
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34
Q

Prohibited Manuevers

A
  1. Spins
  2. Aerobatics of any kind
  3. Full or abrupt control inputs above 181 KIAS
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35
Q

Flight Load Factor

below 12,500 lbs GWT

A

-1.27 to +3.17 Gs (flaps up)

0 to +2.0 Gs (flaps down)

36
Q

Flight Load Factor

above 12,500 lbs GWT

A

-1.24 to +3.10 Gs (flaps up)

0 to +2.0 Gs (flaps down)

36
Q

Bank Limits

A

60°

left or right

37
Q

Pitch Limits

A

30°

above or below the horizon

38
Q

When should you exit icing conditions as soon as practicable?

A
  1. Unexplained 30% increase in TQ needed to maintain airspeed in level flight
  2. Cumulative total of 2 in. or more of ice on the wing
  3. Unexplained decrease of 15 KIAS
  4. Unexplained deviation between pilot and co-pilot airspeed indicators
40
Q

When is sustained flight in icing conditions with flaps extended NOT prohibited?

A

During approach and landing

41
Q

Oxygen Requirements

A
  1. Minimum 10 minute supply for each occupant above 14,000’ PA
  2. Additional emergency oxygen will be on board when factors prevent descent to 10,000’ cabin PA
42
Q

Conditions for operating over 12,500 lbs GTOW?

A
  1. TAKEOFF: Smooth, paved runway. No tailwind.
  2. FLIGHT: Planned and flown at or above 10,000’ AGL and ≥60 min in duration
  3. LANDING: Sink rate of 500 fpm or less. Smooth, paved runway.
43
Q

Max demonstrated crosswind component (90°)

43
Q

Center of Gravity (CG) Limits

A 
FORE:
181 arm in. (≤11,279 lbs GWT)
185 arm in. (@12,500 lbs GWT)
188.3 arm in. (@14,000 lbs GWT)
AFT:
196.4 arm in.
44
Q

Cabin Differential Pressure

A

Normal (green arc): 0 to 6.6 PSID

45
Q

Flight into Turbulence Restrictions

A
  1. NO Extreme (known or forecasted)

2. NO Severe (known)

46
Q

Are you allowed to move the power levers aft of the idle gate in flight?

47
Q

Interstate Turbine Temperature (ITT)

°C

A 
Starting (5 sec past 800°): 1000°
Low Idle: 750°
T/O and Max Cont: 800°
Max Cruise: 800°
Climb and Normal Cruise: 770°
Max Reverse (1 min): 750°
48
Q

Torque (TQ)

1600-2000 RPM N2

A

Normal (green arc): 400 to 2230 ft•lb
T/O and Max Cont (red line): 2230 ft•lb
Transient (5 sec): 2750 ft•lb

60 to 85 PSI (Oil): 1100 ft•lb
Below 1600 RPM: 1100 ft•lb
Above 2000 RPM: 1800 ft•lb

49
Q 
Gas Generator (N1)
(Turbine Tachometer)
A 
Low Idle: 60% (min)
High Idle: ~70%
T/O and Max Cont: 101.5%
Max Cruise: 101.5%
Transient (10 sec): 102.6%
Max Reverse (1 min): 88%
50
Q

Propeller (N2)

A

Max Feathered Ground: 700 RPM
Min Cont Unfeathered Ground Ops: 1150 RPM
Normal (green arc): 1600 to 2000 RPM
T/O and Max Cont (red line): 2000 RPM
Max Cruise: 2000 RPM
Max Reverse (1 min): 1900 RPM
Transient (5 sec): 2200 RPM

Up to 2120 RPM allowed if TQ ≤ 1800 ft•lb

51
Q

Oil Temperature (°C)

A 
Starting: -40° (min)
Low and High Idle: -40 to 99°
T/O and Max Cont (green arc): 0 to 99°
Max Cruise: 0 to 99°
Max Reverse (1 min): 0 to 99°
Transient (10 min): 99 to 104°

Normal Recommended: 74 to 80°
Recommended for fuel heater at takeoff power: 55° (min)

52
Q

Oil Pressure (PSI)

A

Starting (bottom red line): 60 PSI (min)
Caution Range (yellow arc): 85 to 100 PSI
T/O and Max Cont (green arc): 100 to 135 PSI
Max Cruise: 100 to 135 PSI
Max Reverse (1 min): 100 to 135 PSI

Normal Above FL210 (green arc): 85 to 135 PSI
Cold Start (top red line): 200 PSI (max)
If TQ < 1100 ft•lb, tolerable to complete flight: 60 to 85 PSI

53
Q

Pitot Heat Limits

A

Max 15 min. on the ground

54
Q

Surface Deice Limits

A

Prohibited below -40°C OAT

55
Q

Brake Deice Limits

A
  1. Prohibited above 15°C OAT
  2. Prohibited during SE operations
  3. Max 10 min w/ landing gear retracted
  4. At least 85% N1 and adequate pneumatic pressure for simultaneous deicing
56
Q

Fuel Ferry Tank Limits

A
  1. Max 240 gal fuel in ferry tanks
  2. Max 14,500 lbs GTOW
  3. V(ne) = 216 KIAS
  4. V(mo) = .43 Mach
  5. Avoid moderate turbulence or greater
  6. No autopilot over 12,500 lbs GWT
  7. Max 1500 FPM cabin pressure descent rate w/ caps on
57
Q

When is crossfeeding allowed?

A

Only during single-engine operations

58
Q

When should fuel be added to the auxiliary tank?

A

Only when the corresponding main tank is full

59
Q

Max operation with FUEL PRESS annunciator illuminated?

60
Q

Starter Limits

A

40 sec ON, 60 sec OFF
40 sec ON, 60 sec OFF
40 sec ON, 30 min. OFF

61
Q

Pneumatic Pressure Range

A 
Normal (green arc): 12 to 20 PSI
Max Cont (red line): 20 PSI
62
Q

Propeller Deice Ammeter Range

A

18 to 24 Amps

63
Q

Minimum Crew Requirements

64
Q

Generator Load Limits

Flight

A

100% (up to FL310)

88% (above FL310)

65
Q

Generator Load Limits

Ground

A
  1. Max 85%
  2. N1 minimums (w/o a/c)
    60% RPM: 0 to 80%
    65% RPM: 80 to 85%
  3. N1 minimums (w/ a/c after gen stabilized)
    62% RPM: 0 to 80%
    65% RPM: 80 to 85%
66
Q

Cabin Floor Loading Limits

A

200 lb/sq ft (seat tracks)

100 lb/sq ft (other areas)

67
Q

Baggage/Utility Area Limits

A

550 lbs

53.3 cu/ft

68
Q

Generator Voltage Limits

A

27.5 to 29 VDC

69
Q

Inverter Limits

A

390 to 410 Hz (frequency)

110 to 120 VAC (voltage)

70
Q

Gyro Suction

A 
Above FL150 (narrow arc): 2.8 to 4.3 inHg 
Below FL150 (wide arc): 4.3 to 5.9 inHg
71
Q

Inflight Engine Restart Limits

A

Within 2 min. or after 10 min. from engine shutdown

Except if engine is required for safety of flight

72
Q

Operating with JP-4 requires what?

A

Standby pumps on above 30,000’ MSL

73
Q

AVGAS Limitations

A
  1. Use lowest available octane rating (less lead)
  2. Prohibited crossfeed to engine w/ inop engine-driven boost pump
  3. Takeoff TQ may not be attainable
  4. Max 150 hours between engine overhaul
  5. Must use standby pump above 15,000’ MSL
74
Q

Max engine operation using only the high pressure fuel pump (no boost pump)?

A

10 hours (cumulative)

75
Q

How to correct for high ITT at ground idle?

A

Reduce accessory load and/or increase N1 RPM

76
Q

Load Securing Factor

A

Side and Rear: 1.5
Up: 3.0
Down: 6.6
Forward: 9.0

77
Q

FMS Approaches

A
  1. APPR or GPS APPR (green) must be displayed on the PFD at the FAF
  2. Prohibited if NO APPR (white or amber) displayed on PFD
  3. Prohibited from FAF to MAP for ILS or LOC
78
Q

When are inflight engine cuts prohibited?

A

Below V(sse), 117 KIAS

79
Q

When is flight with a cracked or shattered windshield/window allowed?

A

Emergency evacuation to a location where maintenance can be performed

80
Q

Ambient Temperature Limits

A

Above FL250: ISA+31°C

Up to FL250: ISA+37°C

81
Q

Min speed at which the aircraft can be fully trimmed?

A

92 KIAS

gear and flaps down, props high RPM

82
Q

Cracked or Shattered Windshield Limitations

A
  1. Continued flight limited to 25 hours
  2. Must not impair visibility
  3. Must not interfere with wipers, if required
  4. Windshield anti-ice must be operational, if required
  5. Up to FL250
  6. Maintain 2.0 to 4.6 PSID during flight until resetting for landing
83
Q

Cracked Side Window Limitations (cockpit or cabin)

A
  1. Continued flight max 25 hours
  2. Pressurized flight prohibited.
  3. Cabin pressure switch must remain in DUMP position
84
Q

Minimum pneumatic pressure for sufficient surface de-ice boot inflation?

85
Q

Flight into Icing Restrictions

A

No known or forecasted SEVERE or EXTREME

C-12U3 (11 decks)

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