C12 U1 Limits - Chapter 5 Flashcards
Pneumatic Pressure(3)
12-20 PSI Normal Range
16 PSI Min recommended for deice boots
20 PSI Maximum
Propeller Deicer Ammeter
14-18 Amperes Normal Operations
Fuel Quantity
0-265 LBS No Takeoff
Flap Position Indicator
40% Takeoff and Approach
Gyro Suction(4)
- *2.8-4.3 inHg Normal 35,000-15,000**
2. 8 inHg marked for 35,000 - *4.3-5.9 inHg Normal 15,000-Sea Lvl**
4. 3 inHg marked for 15,000
Airspeed Indicator(6)
Note: Maximum allowable airspeed (red striped) point is self-adjusting with altitude
86 KIAS Min SE Control Vmca
121 KIAS One Eng Inop Best ROC Vyse
75-157 KIAS Full Flap Operating Vfo/Vfe
199 KIAS Max App Flap Extension Vfo/Vfe
260 KIAS Max VMO (.52 Mach)
Minimum Airspeed for Reverse Prop
40 KIAS
Safe one engine inoperative speed Vsse
104 KIAS
Tire limitation landing speeds(2)
139 KIAS High float gear
156 KIAS Standard gear
Min Airspeed for icing
140 KIAS
Max landing gear airspeeds Vlo/Vle
163 Vlo Up
181 Vlo Down / Vle
Turbulence Penetration
170 KIAS
Design Maneuvering Speed Va
111 KIAS Flaps full
181 KIAS Flaps up
Max airspeed for effective windshield deice
226 KIAS
Cabin Altimeter and Differential Pressure(2)
0-6.1 PSID Normal Range
6.1 PSID Maximum
Propeller Limitations CAUTION
Propellers may be feathered on the ground and idled at rotational speeds less than 600 RPM.
Propeller speeds less than 600 RPM may result in propeller blade erosion.
Propeller Limitations
Prop RPM greater than ____ indicates a failure of the _____.
Prop RPM greater than ____ indicates a failure of both _____ and ____.
2000; Primary Governor
2120; Primary Governor, Overspeed Governor
Starter Limitations
40 sec on - 60 sec off
40 sec on - 60 sec off
40 sec on - 30 min off
FUEL SYSTEM LIMITS -
Operating Limits_____ hours cumulative operation with the FUEL PRESS annunciator illuminated
10 hours
FUEL SYSTEM LIMITS -
Operating LimitsStandby pumps required _______
Above FL300 with JP-4
FUEL SYSTEM LIMITS
Aviation Gasoline Note
Aviation gasoline (AVGAS) contains a form of lead that has an accumulative adverse effect on gas turbine engines. Use AVGAS with the lowest available octane rating (less lead content). If any AVGAS is used, the total operating time must be entered on DA Form 2408-13-1. Operating time on AVGAS is computed based on quantity used and average consumption.
Crossfeed fuel will not be available from the side with an inoperative standby boost pump.
FUEL SYSTEM LIMITS -
Aviation Gasoline - Crossfeed of AVGAS to an engine with a failed engine-driven boost pump is _____. Such a crossfeed will result in less than minimum fuel pressure to the high-pressure pump on that side.
not authorized
FUEL SYSTEM LIMITS -
Aviation Gasoline
____ may not be attainable during operations with AVGAS.
Takeoff torque
FUEL SYSTEM LIMITS -
Aviation Gasoline
The use of AVGAS is time limited to ____ between ____.
150 hours;
engine overhaul
FUEL SYSTEM LIMITS -
Aviation Gasoline
The use of AVGAS requires the ____ to be used during all operations ____
standby boost pumps;
above 15,000
FUEL SYSTEM LIMITS -
Fuel Management
Refuel auxiliary tanks only when
Mains are full
FUEL SYSTEM LIMITS -
Fuel Management
Max imbalance
1000 lb
FUEL SYSTEM LIMITS -
Fuel Management
yellow arc
265 lb; no takeoffs / go-arounds
FUEL SYSTEM LIMITS -
Fuel Management
Crossfeed only during ____
single engine operation
If it is known that icing inhibitor was not added
it shall be added during refueling operations, regardless of ambient temperature
Landing Gear Limitations
1 cycle per 5 minutes
15 minute cool-down after 6 cycles
Brake Deice Limitations
Max ambient temperature for operation
15 °C
Brake Deice Limitations
Maximum time on with gear retracted
10 minutes
Brake Deice Limitations
Minimum N1 for brake and surface deice
85%
Brake Deice Limitations
One engine inoperative
Brake deice off
Pitot Heat Limitations
15 minutes max on the ground
Continued engine operation ____ above ITT/TGT will reduce engine life.
770 °C
Electrical System Limits
Minimum battery voltage for
GPU connect / ENG start
(1) 20 Vdc min battery for GPU connect
(2) 22 Vdc min battery for start
Electrical System Limits
Normal DC voltage range
27.5-29 Vdc
Electrical System Limits
Max Generator loads
75% Max load for low idle
85% Max load for high idle & ground operations
Electrical System Limits
Normal AC Frequency/Voltage
390-410 Hz normal AC range
110-120 Vac normal AC range
Aircraft Weight Limitations
Max RampMax GTOW
Max LandingMax Zero Fuel
14,090 lb. Max Ramp
14,000 lb. Max GTOW
12,500 lb. Max Landing
11,000 lb. Max Zero Fuel
Cabin Weight Limitations
Max aft baggage compartment
Max weight on stair door
Max weight on toilet
Max seat rack loading
Max cabin floor loading
550 lb. Max aft baggage compartment
300 lb. Max weight on stair door
238 lb. Max weight on toilet
200 lb./sqft Max seat rack loading
100 lb./sqft Max cabin floor loading
Prohibited Maneuvers(6)
Spins
Aerobatics
Abrupt maneuvers above 181 KIAS
Power levers past idle gate in flight
Banks greater than 60°
Pitch greater than 30°
G Limitations
-1.27 - 3.17 Flaps up 12,500 lb.
0 - 2 Flaps down 12,500 lb.
-1.24 - 3.10 Flaps up 14,000 lb.
0 - 2 Flaps down 14,000 lb.
Environmental Limitations
Maximum ISA ambient temperature
>FL250 ISA +31 °C
Environmental Limitations
Minimum ambient temperature for deice boot operation
-40 °C
Environmental Limitations
Maximum cross wind component
25 knots at 90°
Max Operating Altitudes
FL 310 Max operating altitude
Max Operating Altitudes
Cabin
Cabin pressure altitude not to exceed 10,000 IAW AR 95-1
Ice Vane Limitations
Extension/Retraction
Extend at or below +5 °C w/ visible moisture
Retract at or above +15 °C
Windshield Heat Limitations
Turn on by FL100 or freezing conditions
Use NORMAL for 15 minutes prior to selecting HIGH
WARNING
Exit Icing When(4)
(1) Unexplained 30% increase in TQ to maintain airspeed
(2) Cumulative total 2” ice on aircraft
(3) Unexplained 15 KIAS decrease (constant TQ)
(4) Unexplained difference between airspeed indicators
Operations above 12,000 lb.
Altitude
Duration
Runway
Winds
Landing
(1) Fly mission above 10,000
(2) Mission duration 60-minute minimum unless restricted by ATC, WX or emergency
(3) Takeoff only from smoothly paved runways
(4) No tailwind on takeoff
(5) Land only in emergency (smooth runway and 500 ft/min sink rate)
Autopilot Limitations(7)
(1) Pilot at the controls
(2) Max speed is Vmo/Mmo
(3) Prohibited below 200’ AGL
(4) 120 KIAS Min coupled APR speed
(5) Prohibited in severe icing
(6) Must be preflighted
(7) For VOR NAV or VOR APR modes - DME & NAV receivers must be tuned to the same source
Climb Schedule(4)
SL to 10,000 ft: 160 KIAS
10,000-20,000: 140 KIAS
20,000-25,000: 130 KIAS
25,000-35,000: 120 KIAS
Prop RPM Instrument Landing System Limits
During ILS, do not operate propellers in 1750-1850 RPM range
FMS Limits
(1) RAIM must be available by the FAF for GPS approaches
(2) During FMS instrument approaches, APPR or GPS APPR must be displayed on the PFD at the FAF to indicate that the FMS is in the approach mode.
(3) FMS based approaches with a name of RNVxxx or VORxxx may be flown provided the VHF navigation receiver is tuned to the reference facility.
FDS Requirements
Both PFD’s must be in the traditional ADI and HSI mode for takeoffs and the final segment of instrument approaches. MAP modes are not authorized for takeoffs or the final segment of instrument approaches.
TCAS Limits
Pilots are authorized to deviate from their current ATC clearance to the extent necessary to comply with a TCAS II resolution advisory (RA).
Oxygen Requirements
One oxygen mask is required for_______________________
each crewmember and passenger
Oxygen Requirements
Minimum oxygen supply
10 minutes at or above FL250 based on highest flow rates