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C-12M Flashcards > Chapter 4 Limitations > Flashcards

Chapter 4 Limitations Flashcards

1
Q

Flaps down max speed

A

157 KIAS

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2
Q

Prop rpm (N2) transient between __ and __ is allowable for __ seconds.

A

2000 and 2200 rpm for 5 seconds

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3
Q

Vmca, single engine minimum control speed

A

86 KIAS

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4
Q

Max time for brake deice operation with gear retracted

A

10 minutes

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5
Q

Oil pressure minimum limit

A

60 psi

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6
Q

Oil pressure normal range

A

100 to 135 psi below FL210

85 to 135 psi above FL210

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7
Q

Oil pressure maximum on start

A

200 psi

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8
Q

Maximum sustained generator load in flight

A

100 % below FL 310

88 % above FL 310

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9
Q

Torque maximum limit

A

100 %

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10
Q

Torque normal range

A

20 to 100%

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11
Q

Starter cycle limitations

A

40 seconds on 60 seconds off (2 cycles)

40 seconds on 30 minutes off

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12
Q

Maximum landing gear cycles

A

10 per hour, 1 per minute

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13
Q

Total and usable fuel capacity

A

549 gal total, 544 usable

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14
Q

Max error in fuel gauges

A

3%

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15
Q

ITT normal range

A

400 to 800 C

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16
Q

ITT max continuous

A

800 C

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17
Q

ITT starting limit

A

1000 C

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18
Q

ITT for cruise/climb

A

770 C

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19
Q

Operation on avgas is limited to ___ during any one engine overhaul period.

A

150 hours

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20
Q

Generator ground limits

A

56% N1 minimum for 70-75% load
60% N1 minimum for 75-80% load
65% N1 minimum for 80-85% load

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21
Q

Transient N1 between ___ and ___ are limited to ___.

A

101.6 to 102.6 limited to 10 seconds.

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22
Q

If transient N1 is exceeded what must be done

A

Engine must be replaced

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23
Q

Transient torque values above 100% are limited to ___

A

5 seconds

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24
Q

Oil temperature minimum for start

A

-40 C

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25
Q

Oil temperature limits for normal low and high idle

A

-40 to 99 C

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26
Q

Prop specs

A 
3 Blade
Counterweighted
Constant speed
98 inch diameter
Full feathering
Hydraulically actuated
Reversible
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27
Q

Transient oil temperatures between ___ and ___ are allowable for ___.

A

100 and 104 C for 5 minutes

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28
Q

Pressurization limit for inner pane cracked

A

4.0 psi

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29
Q

G load limits

A

Clean: 3.17 to -1.27
Flaps: 2.0 to -1.27

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30
Q

Limit for flight with outer pane cracked

A

6.6 psi

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31
Q

Limit for flight with both panes cracked

A

unpressurized only

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32
Q

Landing gear maximum retraction speed

A

163 KIAS

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33
Q

Maximum tire speed

A

139 Knots

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34
Q

How does Vmo change with altitude

A

Decreases 5 knots for every 1000 feet above 15,000

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35
Q

Below ___ torque is limited to ___.

A

1600 rpm limited to 49 %

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36
Q

Prop deice ammeter limits

A

18 to 24 A

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37
Q

CG envelope

A

Below 11,279 lbs: 181.0 to 196.4
11,279 to 12,500 lbs: 185.0 to 196.4
12,501 to 13,500 lbs: 188.3 to 196.4

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38
Q

Maximum maneuvering speed with flaps down

A

111 KIAS

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39
Q

A minimum of ___ should be maintained during simultaneous use of surface and brake deice systems.

A

85% N1

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40
Q

Maximum altitudes for operations with avgas

A

Both boost pumps: FL310

Single boost pump: FL200

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41
Q

Prop tachometer (N2) normal range

A

1600 to 2000 rpm

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42
Q

Prop tachometer (N2) maximum

A

2000 rpm

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43
Q

Low idle ITT limit

A

750 C

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44
Q

Maximum reverse ITT limit and time

A

750 C for 1 minute

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45
Q

Minimum safe single engine speed

A

104 KIAS

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46
Q

Turbulent air penetration speed

A

170 KIAS

47
Q

Turbine tachometer (N1) normal range

A

56 to 101.5%

48
Q

Turbine tachometer (N1) maximum

A

101.5%

49
Q

Oil temperature normal flight range

A

0 to 99 C

50
Q

Oil temperature maximum in flight

A

99 C

51
Q

Flaps approach maximum speed

A

200 KIAS

52
Q

Maximum maneuvering speed with flaps up

A

181 KIAS

53
Q

Generator ouput range and difference

A

27.5 to 29.0 V, should be within 1 V of each other

54
Q

Generator load max deviation

A

10 percent

55
Q

Minimum altitude for yaw dampener engagement

A

200 AGL

56
Q

Maximum tailwind of takeoff and landing

A

10 kts

57
Q

Max crosswind for takeoff/landing (dry)

A

25 kts

58
Q

Max crosswind for takeoff/landing (icy)

A

10 kts

59
Q

Max crosswind for takeoff/landing (soft)

A

5 kts

60
Q

Maximum sink rate at touchdown

A

300 fpm

61
Q

Accelerations of less than ___ may result in the loss of oil pressure and should be avoided.

A

+0.5 G

62
Q

Brake deice should not be operated at ambient temperatures above ___.

A

15 C

63
Q

Maximum engine performance is ___ limited at cold ambient temperatures and low altitude.

A

Torque

64
Q

Maximum engine performance is ___ limited at high ambient temperatures and high altitude.

A

Temperature

65
Q

Maximum allowable oil fluctuation

A

+/- 10 psi

66
Q

Minimum temperature for deice boots

A

-40 C

67
Q

Ice vanes shall be extended for operations in ambient temperatures of ___ or below if flight free of visible moisture cannot be assured.

A

5 C

68
Q

Ice vanes shall be retracted for operations in ambient temperatures of ___ or above.

A

15 C

69
Q

Who may authorize takeoff in the restricted envelope.

A

CO may be delegated.

70
Q

Airstair maximum door weight

A

300 lbs

71
Q

Maximum altitude

A

FL350

72
Q

Maximum landing gear extension/extended speed

A

181 KIAS

73
Q

Maximum operating altitude with unpressurized cabin

A

FL250

74
Q

Engine type and rating

A

PT6A-42, 850 SHP

75
Q

Maximum normal ramp weight

A

12,595 lbs

76
Q

Maximum restricted ramp weight

A

13,595 lbs

77
Q

Maximum normal takeoff weight

A

12,500 lbs

78
Q

Maximum restricted takeoff weight

A

13,500 lbs

79
Q

Maximum zero fuel weight

A

11,000 lbs

80
Q

Maximum differential pressure

A

0 to 6.6 psi

81
Q

Operation with fuel pressure light illuminated is limited to ___ between engine driven fuel pump overhaul or replacement periods.

A

10 hours

82
Q

When may auxiliary tanks be filled

A

Only when main tanks are full

83
Q

Maximum fuel imbalance

A

1,000 lbs

84
Q

Use of brake deice during takeoff may render ___ ineffective with an engine failure after takeoff.

A

Rudder boost

85
Q

Autopilot flap limitations

A

Autopilot shall not be used with flaps past the approach setting.

86
Q

Maximum landing weight

A

12,500 lbs

87
Q

Propeller operation between ___ and ____ during ILS approach may result in glideslope signal interference.

A

1750 and 1850 rpm.

88
Q

Oil pressure ___ to ___ (at or above FL210) is undesirable and should be tolerated for the completion of flight at a power setting not to exceed ___.

A

60 to 85, 49% torque.

89
Q

Oil pressure ___ to ___ (below FL210) is undesirable and should be tolerated for the completion of flight at a power setting not to exceed ___.

A

60 to 100, 49% torque.

90
Q

Maximum altitude with yaw dampener inoperative

A

17,000 MSL

91
Q

Minimum fuel quantity for takeoff

A

265 lbs per side

92
Q

Minimum fuel quantity for landing

A

530 lbs

93
Q

Torque is limited to ___ for sustained operation above ___.

A

81% above 2080 rpm.

94
Q

Can brake deice be used during single engine operation or if pneumatic pressure is being supplied by a single bleed air source?

A

No

95
Q

Pneumatic pressure normal range

A

12 to 20 PSI

96
Q

Pneumatic pressure maximum

A

20 psi

97
Q

Maximum operating speed

A

259 KIAS or 0.52 whichever is lower

98
Q

Gyro suction limit

A

2.8 to 5.9 in Hg

99
Q

Best rate single engine

A

121 KIAS

100
Q

Best angle single engine

A

115 KIAS

101
Q

Best angle 2 engine

A

100 KIAS

102
Q

Minimum altitude for autopilot on takeoff

A

400 AGL

103
Q

Minimum altitude for autopilot on cruise

A

1000 AGL

104
Q

Minimum altitude for autopilot on landing

A

200 AGL

105
Q

Minimum controllable ground speed

A

86 KIAS

106
Q

Maximum range glide speed

A

140 KIAS

107
Q

Minimum voltage for battery start

A

20 V

108
Q

Low idle N1 minimum

A

56%

109
Q

High idle N1

A

approximately 70%

110
Q

Maximum reverse N1

A

88 %

111
Q

Cruise climb airspeed below 10K

A

160 KIAS

112
Q

Cruise climb airspeed between 10K and 20K

A

140 KIAS

113
Q

Cruise climb airspeed between 20K and 25K

A

130 KIAS

114
Q

Cruise climb airspeed between 25K and 35K

A

120 KIAS

C-12M Flashcards (7 decks)

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