CH. 4 Flashcards
Maximum Normal Taxi and Takeoff Weight
164,000 pounds
Maximum Alternate Taxi and Takeoff Weight
175,000 pounds
Recommended Landing Weight
142,000 pounds
Maximum Normal Landing Weight
164,000 pounds
Maximum Alternate Landing Weight
175,000 pounds
Due to reduced performance margins, the use of maximum effort speeds during landing when the aircraft is limited to ___ fpm may result in an airframe overstress condition.
300 fpm
Where should the aux tanks and external tanks be prior to landing?
Aux tank = no restriction
External = ~empty (<= 500 pounds)
Tank Limits
-Outboards
-Inboards
-Total Main
-Aux
-External
-Total without fuselage
-Fuselage
-Total with fuselage
-Outboards = 8310
-Inboards = 7650
-Total Main = 31920
-Aux = 5810
-External = 8900
-Total without fuselage = 61,340
-Fuselage = 24,390
-Total with fuselage = 85,730
What are the three categories of fuel management?
- Primary
- Alternate Enroute
- Secondary
Explain primary fuel management
- No. 1 and No. 4 always contain 500-1000# more fuel per tank than No. 2 and No. 3
-No less than 7060# in No. 1 and No. 4 and no less than 6410# in No. 2 and No. 3 when externals contain usable fuel
Explain alternate enroute fuel management
Used to maximize weight in outboard tanks during long transit legs, potentially extending airframe service life
-When external/aux contains usable fuel, No. 1/4 are kept at max and contain 500-1000# more than No. 2/3
-Once external/aux empty, use No. 2/3 down to 1520, then use 1/4 down to 1520
-Once all tanks at 1520#, go tank-to engine
Explain secondary fuel management
Any fuel management that fails to meet primary or alternate enroute
This will occur when there is usable fuel in the external tanks and the main tanks are partly filled to less than 26,940#
An extreme deviation is operation with No. 1 and No. 4 empty
What are the G limits for area A (Primary Fuel Management with externals and pods)
Up to Vh
-1 to 3 symmetrical
0 to 2.33 rolling
Vh to Vd
0 to 2.5 symmetrical
0 to 2 rolling
What are the G limits for area B (Primary Fuel Management with externals and pods)
Up to Vh
0 to 2.5 symmetrical
0 to 2 rolling
Vh to Vd
Same
What are the extra requirements to be 540 sink?
Gross Weight <= 142,000 pounds
Fuel in 1 or 4 <= 7,320
Fuel in mains <= 28,000
What gross weight range must you be in order to still make 540 sink for a main tank fuel of:
23K
24K
25K
26K
27K
28K
23K = Less than 142K gross weight
24K = 115K-142K gross weight
25K = 122K-142K gross weight
26K = 128-142K gross weight
27K = 135K-142K gross weight
28K = 142K gross weight exactly
NOTE: If more than 2.5 degrees aileron tab deflection is required to trim unbalanced fuel at speeds >200 KIAS, reduce Vh to ___ KIAS less than shown in Figures 4.1-1 and 4.1-2
5 KIAS less than advertised
If severe turbulence cannot be avoided, flight should be in the range of ___ KIAS above power-off stall speed for the operating gross weight, not to exceed ___ KIAS
65 KIAS above power-off stall speed not to exceed 180 KIAS
List the flap speeds in reverse order
100 = 145
90 = 145
80 = 150
70 = 155
60 = 165
50 = 183
40 = 190
30 = 200
20 = 210
10 = 220
List the flap speed for
-60
-80
60 = 165
80 = 150
List the flap speed for
-70
70 = 155
CAUTION: Avoid abrupt or full rudder deflection with flaps lever positioned ___ or greater (high rudder boost) and airspeed ___ KIAS or greater
15%
200 KIAS
Landing Gear Speed
Landing Lights Speed
Gear = 168
Lights = 250
Cargo door and Ramp speed (all positions and motions including locked)
250
Air deflector speed
150
Paratroop doors open and locked
250
Paratroop doors opening/closing
150
High speed drogues
185-250
Low speed drogues
105-120
130 engaged
Severe turbulent air speed limit
180 KIAS
Inoperative windshield anti-icing below 10,000 feet
187 KIAS
Max speed with gear doors removed
200 KIAS
CAUTION: Since CG shifts with changes in aircraft attitude, if fuel is carried in the fuselage tank, the external tanks should be empty when the fuselage contains less than _____ pounds, or the aircraft is restricted to level flight until external tanks are empty
20,000 pounds
Can you turn with the brakes locked on the inside of the turn?
No
What are the taxi speed limits for
20 degrees
60 degrees
20 = 20 KTS
60 = 5 KTS
What are the limits when taxiing at gross weights above 164,000 pounds?
- Smooth surfaces
- 10 KTS
- Shortest distance
- Min braking
- Only light braking while turning
- 20 degrees nosewheel steering
- Avoid abrupt or hard uneven application of brakes
What is the max nose gear speed and main landing gear speed
Nose = 139 KGS
Main = 174 KGS
What are the three categories of airfields?
- High Strength
- Marginal Strength
- Substandard
For normal operations, tire pressure for a nominal tire deflection of ____ percent is recommended as shown by the high strength airfield data in Figure 4.6-2
35 percent
Minimum soil strength for operation on a Marginal Strength Airfield
CBR of 3 (Particular consideration should be given when not 540, or with CBR less than 6)
The number of passes on a marginal strength airfield is based on the recommended tire pressures corresponding to ____ percent tire deflection
39 percent
What are the 8 additional considerations when operating on a marginal strength airfield or substandard airfield?
1 . Inflate/Deflate tires to recommended psi for marginal strength
2. Empty externals
3. 10 KGS max taxi
4. Minimize braking if porpoising
5. Minimize nose gear loads by using elevator on takeoff/landing and loading aircraft to mid or aft center of gravity
6. Minimize reverse thrust to prevent FOD
7. Shut off flight station and cargo compartment AC when on unpaved surface to prevent clogging of heat exchanger
8. Limit gross weight to 164K
Gross weight and fuel limits for substandard airfields are those corresponding to a ____ fpm sink rate
540
Explain the max passenger load for extended overwater flights
No more than 80 persons including crewmembers for extended over-water flights more than 50 NM from nearest shore line.
Extended over-water ops with mixed pax/cargo loads are restricted to 35 pax per unobstructed overhead exit
What is the G limit with any flap extension
2 g symmetrical
1.5 g unsymmetrical
Prohibited Maneuvers
(Spin Stall Stall)
(7 push slip)
(long roll swap)
- Aerobatics and Spins
- Practice stalls with power above 1,000 HP
- Practice asymmetric power stalls
- Intentional zero or negative G maneuvers lasting longer than 7 seconds
- Sustained airspeed below stick pusher speed
- Intentionally maneuvering the aircraft into a sideslip for a LEFT/RIGHT RUDDER alert
- Abrupt longitudinal control inputs at high speeds (faster than 1.0 g per second load factor increase or decrease)
- Rapid roll reversals (roll rate should be zero momentarily before applying full aileron in the opposite direction)
- At airspeeds above 150 KIAS, moderate to large rudder input held until sideslip peaks followed by opposite rudder (past neutral) or a series of large alternating rudder inputs tending to produce successively larger sideslip angles
Air Start Altitude limit
25,000 feet
22,500 with JP-4
Static propeller feathering limit
2 cycles
(Then the propeller gearbox must be drained or the engine started)
When do you count a static propeller cycle
Each time the aux feather pump is used to drive the propeller from feather to reverse to feather
Regular feathering limit
4 commands
(A command is counted each time the FIRE handle is pulled or the PROPELLER CONTROL SWITCH is placed to FEATHER)
Total auxiliary feather pump operating time limit
Shall not exceed 80 seconds
MGT limit for
-Prior to start
-START
-Max Reverse
-Take-off
-Flight
-Prior to start = <=175
-START = <807
-Max Reverse = <833
-Take-off = <=852
-Flight = <833
When is an overtemp inspection required based on MGT?
-During start, below 65% NG, 807 for 2 seconds is permissible, otherwise an overtemp inspection is required
-If MGT exceeds 852 on take-off, an overtemp inspection is required
What is the normal EPSI?
40-90 psi (40 to <90 for ground ops)
When oil temp is in normal range and EPSI is holding at or above 90, perform engine shutdown. MX is required.
What is the normal GPSI?
> 10 Feathered LSGI
110-210 LSGI
170-210 all other times
What is the normal oil temp?
60-85
Must be above -40C/F for start unless oil has been changed to cold weather oil
Engine power is limited to idle with oil temp less than 0C, and 1000 HP when engine oil temp is less than 45C during ground ops
45C is technically allowed for takeoff
If temp exceeds 93, shut down engine. MX required. If temp is 86-93 for >5 minutes, shutdown is recommended and oil overtemp inspection is required.
Prop Aux Pump Limits
30 seconds = ___ cool down
1 minute = ___ cool down
2 minutes = ___ cool down
3 minutes = ___ cool down
30 seconds = 5 min cool down
1 minute = 10 min cool down
2 minutes = 20 min cool down
3 minutes = 30 min cool down
Engine Starter Duty Cycle Limits
70 on
60 off
5 cycles
Then 20 minute cooling
What is the Takeoff Crosswind and Tailwind limitation?
If wind is not from 315 to 045 degrees relative, and crosswind is greater than 15 but less than 35 knots, the limit it 2500 HP until indicated speed is greater than 35 knots
What are the windmilling propellor limitations?
<7 NG FIRE HANDLE IN / FEATHERED
>7 NG FIRE HANDLE IN / FEATHERED
FIRE HANDLE IN / NOT FEATHERED
FIRE HANDLE PULLED / FEATHERED
<7 NG FIRE HANDLE IN / FEATHERED = 3 min
> 7 NG FIRE HANDLE IN / FEATHERED = 20 min
FIRE HANDLE IN / NOT FEATHERED = 5 min
FIRE HANDLE PULLED / FEATHERED = 6 hours
(run for 20 min at FLIGHT IDLE)
Can you use the APU for bleed air in flight?
No, only the ac generator
What is the APU starter duty cycle?
90 seconds on, 5 minutes off for three cycles, then a wait of 60 minutes (inspect starter after last cycle abort)
APU Numbers:
-Door operation
-Start light to on speed
-Normal RPM
-Max RPM
-EGT
-Bleed air pressure
-Bleed air pressure check 30-15 psi
-Voltage
-Load
-Door operation = 9-18 seconds
-Start light to on speed = 35 seconds
-Normal RPM = 98-105 percent
-Max RPM = 110 percent
-EGT = 260-680C, 710C max
-Bleed air pressure = 40-50 psi
-Bleed air pressure check 30-15 psi = not less than 22 seconds
-Voltage = 108-117V
-Load = 0-100%
When will you get an ACAWS for APU temp?
Exceeding 710C for 3 seconds
What RPM will the APU automatically shut down?
110 percent
Pump pressures
-Boost
-Transfer
-Fuselage Tank Transfer
-Boost = 15-24 psi
-Transfer = 28-40 psi
-Fuselage Tank Transfer = 28-46 psi
(Boost pump pressures are no flow. Pressures below are acceptable with flow as long as no flow meets limits)
Fuel unbalance limits
-Between symmetrical tanks
-Between left and right wing
-Aux exception to left and right wing
-Between symmetrical tanks = 1000 lbs
-Between left and right wing = 1500 pounds (except for aux exception)
-Aux exception to left and right wing = One aux full and the other empty, provided all other tanks are symmetrically fueled or unbalanced toward the opposite side within the above limits
Fuel temps should not be lower than ___ degrees above the freeze point. What instrument reading should we consider equal to fuel temp?
6F (3.3C)
TAT
What is the one time limit for using emergency fuel?
6 hours
What is the worst case scenario of percent range lost due to boil-off from aviation gasoline?
20 percent (when fuel temp is 125F and you are climbing to 35,000 feet)
What are the 7 times you cannot have the autopilot engaged?
- Takeoff and Landing
- Above Vh
- Below 200 HAT (precision) or MDA (non-precision)
- IPRA below 200 HAT
- At or below 500’ AGL (when not on an approach)
- In RVSM unless ALT HOLD can hold +-65 feet
- Gross weights above 164K and any of the following:
a. Below 1,000’ AGL
b. Configuration changes
c. Approach
Can you use the autopilot with any engine(s) out?
Yes, if manual symmetric power changes are made
(Cannot use autothrottles)
What approach instrumentation can HF transmissions interfere with?
VOR/ILS approaches
What are the limits on comms when using secure voice?
Nonsecure voice, including interphone, cannot be used at the same time. Crypto must be back in P and PLAIN positions prior to using nonsecure or interphone systems
What are the restrictions associated with using a soft panel in flight?
If a soft panel is activated in flight because of a hard panel failure or fault, do not attempt to deactivate the soft panel until the aircraft is back on the ground in a parked configuration.
Is the CNI-MU LZ function a primary source of navigation data?
No. Using it as such is prohibited.
What are the airdrop speed restrictions?
Above 150 KIAS or with flaps up is prohibited because of the possibility of damage to the aircraft and injury to personnel
Tolerance for airspeed indication difference between pilot and co-pilot
+- 6 KCAS
Static reading of altimeter at field elevation
+- 50 feet field elevation
(Standby altimeter does not internally compensate for temperature; therefore, these tolerances only apply for the standby altimeter if the flight station temperature is between 60-85F)
Max difference between pilot, co-pilot, and standby altimeter at:
10K
20K
30K
10K = 120 feet
20K = 180 feet
30K = 265 feet
Cabin altimeter should be +-500 feet of actual field pressure altitude
HUD/PFD and standby compass heading tolerance
+-5 degrees
Pilot and Copilot HUD/PFD heading tolerence
+-2 degrees
Engine Instrument Fluctuation Limits:
(Ground operation, below flight idle)
NG
MGT
Fuel Flow
NG = +- 1% (not oscillating or quivering rapidly)
MGT = +- 10C
Fuel Flow = +- 10 pph
Minimum for one brake application with normal brakes and anti skid OFF is _____ psi
2,250 psi
What are the normal oxygen regulator readings?
270-340 psi breathing
270-455 no flow
(walk around bottle = 375 +- 75 psi)
Hydraulic Accumulator Preload:
Utility
Booster
Normal Brakes
Emergency Brakes
Aerial Refueling Hydraulic Accumulator
Utility = 1500 (+-100)
Booster = 1500 (+-100)
Normal Brakes = 1500 (+-100)
Emergency Brakes = 1000 (+-100)
Aerial Refueling Hydraulic Accumulator = 1350 (+-50)
Differential Pressure Limits:
Outflow valve differential control
Safety valve
Negative pressure relief
Negative pressure limit
Outflow valve differential control = 14.3 +- 0.2 in Hg
Safety valve = 15.0 +- 0.3 in Hg (do not exceed 16.0 in Hg)
Negative pressure relief = -0.76 in Hg
Negative pressure limit = Do not exceed -1.6 in Hg
Fuel Suppressor Preload:
SPR Fuel Suppressor Precharge
Aerial Refueling Fuel Surge Suppressor Precharge
SPR Fuel Suppressor Precharge = 40 (+-5) psi
Aerial Refueling Fuel Surge Suppressor Precharge = 90 (+-5) psi
Flap Indicator Limits
UP
50
DN
UP = 0 +-1
50 = 50+-8
DN = 100+-7
