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C-12 > 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
V(y)
Best rate-of-climb speed Below FL100: 160 KIAS FL100 to FL200: 140 KIAS FL200 to FL250: 130 KIAS FL250 to FL350: 120 KIAS
26
V(le)
Max landing gear extended speed 181 KIAS
27
V(loe)
Max landing gear extension operating speed 181 KIAS
28
V(lor)
Max landing gear retraction operating speed 163 KIAS
29
V(sse)
Min safe one engine cutoff speed 117 KIAS
30
Max Airspeed for Effective Windshield Anti-icing
226 KIAS
31
Min Airspeed for Sustained Flight in Icing Conditions
140 KIAS
32
Min Coupled Approach Speed
120 KIAS
33
Max Tire Speeds
``` 155 kts (standard) 139 kts (high flotation) ```
34
Prohibited Manuevers
1. Spins 2. Aerobatics of any kind 3. Full or abrupt control inputs above 181 KIAS
35
Flight Load Factor | below 12,500 lbs GWT
-1.27 to +3.17 Gs (flaps up) | 0 to +2.0 Gs (flaps down)
36
Flight Load Factor | above 12,500 lbs GWT
-1.24 to +3.10 Gs (flaps up) | 0 to +2.0 Gs (flaps down)
36
Bank Limits
60° | left or right
37
Pitch Limits
30° | above or below the horizon
38
When should you exit icing conditions as soon as practicable?
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
When is sustained flight in icing conditions with flaps extended NOT prohibited?
During approach and landing
41
Oxygen Requirements
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
Conditions for operating over 12,500 lbs GTOW?
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
Max demonstrated crosswind component (90°)
25 kts
43
Center of Gravity (CG) Limits
``` 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
Cabin Differential Pressure
Normal (green arc): 0 to 6.6 PSID
45
Flight into Turbulence Restrictions
1. NO Extreme (known or forecasted) | 2. NO Severe (known)
46
Are you allowed to move the power levers aft of the idle gate in flight?
No
47
Interstate Turbine Temperature (ITT) | °C
``` 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
Torque (TQ) | 1600-2000 RPM N2
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
``` Gas Generator (N1) (Turbine Tachometer) ```
``` 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
Propeller (N2)
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
Oil Temperature (°C)
``` 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
Oil Pressure (PSI)
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
Pitot Heat Limits
Max 15 min. on the ground
54
Surface Deice Limits
Prohibited below -40°C OAT
55
Brake Deice Limits
1. Prohibited above 15°C OAT 2. Prohibited during SE operations 2. Max 10 min w/ landing gear retracted 3. At least 85% N1 and adequate pneumatic pressure for simultaneous deicing
56
Fuel Ferry Tank Limits
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
When is crossfeeding allowed?
Only during single-engine operations
58
When should fuel be added to the auxiliary tank?
Only when the corresponding main tank is full
59
Max operation with FUEL PRESS annunciator illuminated?
10 hours
60
Starter Limits
40 sec ON, 60 sec OFF 40 sec ON, 60 sec OFF 40 sec ON, 30 min. OFF
61
Pneumatic Pressure Range
``` Normal (green arc): 12 to 20 PSI Max Cont (red line): 20 PSI ```
62
Propeller Deice Ammeter Range
18 to 24 Amps
63
Minimum Crew Requirements
2 Pilots
64
Generator Load Limits | Flight
100% (up to FL310) | 88% (above FL310)
65
Generator Load Limits | Ground
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
Cabin Floor Loading Limits
200 lb/sq ft (seat tracks) | 100 lb/sq ft (other areas)
67
Baggage/Utility Area Limits
550 lbs | 53.3 cu/ft
68
Generator Voltage Limits
27.5 to 29 VDC
69
Inverter Limits
390 to 410 Hz (frequency) | 110 to 120 VAC (voltage)
70
Gyro Suction
``` Above FL150 (narrow arc): 2.8 to 4.3 inHg Below FL150 (wide arc): 4.3 to 5.9 inHg ```
71
Inflight Engine Restart Limits
Within 2 min. or after 10 min. from engine shutdown | Except if engine is required for safety of flight
72
Operating with JP-4 requires what?
Standby pumps on above 30,000’ MSL
73
AVGAS Limitations
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
Max engine operation using only the high pressure fuel pump (no boost pump)?
10 hours (cumulative)
75
How to correct for high ITT at ground idle?
Reduce accessory load and/or increase N1 RPM
76
Load Securing Factor
Side and Rear: 1.5 Up: 3.0 Down: 6.6 Forward: 9.0
77
FMS Approaches
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
When are inflight engine cuts prohibited?
Below V(sse), 117 KIAS
79
When is flight with a cracked or shattered windshield/window allowed?
Emergency evacuation to a location where maintenance can be performed
80
Ambient Temperature Limits
Above FL250: ISA+31°C Up to FL250: ISA+37°C
81
Min speed at which the aircraft can be fully trimmed?
92 KIAS | *gear and flaps down, props high RPM*
82
Cracked or Shattered Windshield Limitations
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
Cracked Side Window Limitations (cockpit or cabin)
1. Continued flight max 25 hours 2. Pressurized flight prohibited. 3. Cabin pressure switch must remain in DUMP position
84
Minimum pneumatic pressure for sufficient surface de-ice boot inflation?
16 PSI
85
Flight into Icing Restrictions
No known or forecasted SEVERE or EXTREME

C-12 (13 decks)

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