Ch-4 Flashcards
Taxi and takeoff gross weight limitations:
Maximum normal: 164,000
Maximum alternate: 175,000
Landing gross weight limitations
Recommended: 142,000
Maximum normal: 164,000
Maximum alternate 175,000
Outboard tanks max
8310
Inboard tanks max
7650
Total main tanks
31,920
Aux tanks
5810
Total internal fuel weight max
43,540
External tanks
8,900
Fuselage tank
24,390
Total internal and external (fuel)
85,730
Primary fuel management
-Outboards contain 500-1000 more fuel than inboards
-main tanks full except start/taxi/takeoff fuel
-no less than 7060 in 1 & 4 and no less than 6410 in tanks 2 & 3 when external tanks have fuel
Alternate enroute fuel management
-May extend airframe service life
-when external and/or auxiliary tanks contain useable fuel 1&4 are maintained at max and 500-1000 more than 2&3
-w/ no fuel in aux & externals, 1&4 full, 2&3 used till 1520. 1&4 then used till 1520, tank-engine from there
Secondary fuel management
Anything not primary or alternate
Recommended loading limits
Area A: 3 g (symmetrical)
Area B & C: 2.5 g (symmetrical)
Alternate (cautionary) loading limits
Area D: 2.25 g (symmetrical)
Loading not recommended
Area E: 2 g (symmetrical)
Emergency situations
Landing gear doors removed
200 gear up
168 gear down
Flight is not permitted with forward nose gear door ______ and the aft door ______
Removed, installed
GS location - % Mac
15-30
External tank limits when fuselage tank is installed
If fuel is in the fuselage tank, external tanks should be empty when the fuselage tank contains less than 20,000 lbs. otherwise restricted to level flight
Taxing with inner brake locked, braking during revers taxiing
Prohibited
Taxi speeds & nose gear deflection
20 degrees
60 degrees
20 knots
5 knots
Taxiing w/ alternate gross weight
-Taxi & takeoff only on smooth surfaces free of dips depressions and holes
-max 10 knots
-taxi shortest distance possible
-minimum braking
-light braking in turns
-limit nose wheel to 5 degrees
-avoid abrupt or hard uneven brake applications
Max tire speeds
Nose-
Main-
139
174
Three categories of airfields (strength)
High strength
Marginal strength
Substandard
High strength airfields:
When Aircraft classification number (ACN) is greater than Pavement Classification Number (PCN)
Aircraft should normally NOT land on runway
Normal operation recommended tire deflection
35 %
Marginal strength airfields:
California bearing ratio (CBR) min
3,
Considerations should be given to operations having aircraft weights in excess of the weight limitation for 540 sink and on runways with CBR 6 or less
Predictions for number of passes on a marginal airfield are a function of _____ & _____ (figure 4.6-2)
Aircraft gross weight and CBR
Number of passes (for marginal field) based on recommendation of tire pressure corresponding to ____ tire deflection
39 %
(To prevent excessive tire damage, do not exceed 39 %)
Applicable airfield strength recommendations for marginal and substandard fields (8 thing)
-inflate/deflate main gear tires to recommended psi
-empty externals
-do not exceed 10 knots during taxi
-minimize breaking if porpoising
-minimize nose gear loads using elevator on landing rollout and T/O, load with mid or aft CH
-minimize reverse on unpaved
-shut off flight station AC on unpaved (prevents clogging of heat exchanger)
-limit gross weight to 164,000
Gross weight limits for substandard field
-Correspond to 540 sink rate
-Decision to use substandard should be made by appropriate authority
-Allow for increased maintenance and accelerated inspections
Maximum passenger load for extended over water operating more than 50 nautical miles from shore
-80 passengers including crew
-with mixed cargo and passengers, 35 per overhead exit
With any flap extension, load factor is
2 g symmetrical
1.5 unsymmetrical
Load factor limits:
Area A-
-1 - 3 symmetrical
0 - 2.33 rolling
Load factor limits:
Area B
0 - 2.5 symmetrical
0 - 2 rolling
Load factor limits:
Area C
0 - 2.5 symmetrical
0 - 2 rolling
Load factor limits:
Area D
0 - 2.25 symmetrical
0 - 1.83 rolling
Load factor limits:
Area E
Not recommended
High bank-angle limitations
-Apply to maneuvers beyond 60 degrees (flaps up) 45 degrees ( flaps extended)
-large aileron inputs should be made between 0.5 and 1.5 g
Prohibited maneuvers
-Aerobatics and spins
-practice stalls with power above 1000 HP
-practice asymmetric power stalls
-intentional zero or negative G maneuvers lasting longer than 7 seconds
-sustained airspeed below stick pusher speed
-intentionally maneuvering into a slide slip for a RUDDER alert
-abrupt longitudinal control inputs at high speeds (faster than 1 g per second increase or decrease)
-rapid toll reversals
Moderate to large rudder inputs held until slideslip followed by opposite rudder
Because of propulsion system limitations, avoid intentional negative and zero g maneuvers lasting longer than ______
7 seconds
Air start can be conducted with or without use of starter below ______
25,000 ft
Max air start elevation for Jp-4
22,500 ft
With bleed air available, starter assisted air start can be accomplished at any speeds loss than ______
250 KIAS
(NG below 29)
With bleed air not available,
NG 15-29
If prop is windmilling at 100% NP, NG will stabilize at _________
15, at speeds as low as 110-130
If propeller is feathered, speed as high as ______ may be required to achieve 15 % NG
200-250
Static propeller feathering is limited to _____ cycles before propeller gearbox must be ______ or _____
2
Drained
Engine started
Total auxiliary feather pump operation shall not exceed _____ seconds
80
Mgt start limits
807 for 2 seconds (max 175 to start)
Mgt ground
600
Mgt reverse
833
Mgt takeoff
852
Mgt max continuous
833
Min oil temp for start
-40
Engine power limited to idle when oil temp is less than _____
And to 1000 when oil temp is less than _____
0, 45
GPSI
15 seconds of rotation
110-210 LSGI
170-210 GI and above
EPSI
15 seconds of gas generator rotation
40-90
Oil temp
60-85
Shutdown engine if oil temp exceeds
93
86-93 for > 5 minutes
Starter duty cycle
70 sec on, 60 sec off for 5 cycles
Then 20 min cooling
Takeoff crosswind restrictions
Not pointed into wind +/- 45 degrees, with a component 15-35
2,500 HP max until greater than 35 KIAS
With WINDMILLING propeller (greater than one half revolutions per minute) and oil supplied (fire handle in), engine should be started within _____ and operated at Flt idle for at least ____
5 minutes
5 minutes
With FEATHERED propeller (less than than one half revolutions per minute) and oil supplied (fire handle in), engine should be started within _____ and operated at Flt idle for at least ____
6 hours
20 minutes
APU starter cycle
90 sec on 5 min off for three cycles,
Min 60 minutes before subsequent start attempts
(Different in 8.1 natops?)
Max APU RPM
110
Shuts down if exceeded
APU bleed air pressure
40-50 psi
APU EGT
Max continuous-680
710 for 3 seconds
APU generator voltage
108-117
Boost pump psi
15-24
Transfer pump psi
28-40
Fuselage transfer pump psi
28-46
Fuel unbalance
1000 lbs between symmetrical tanks
1500 lbs between wings
One aux can be full with the other empty as long as all other tanks are symmetrically fueled or unbalanced towards the opposite side
Do not operate with autopilot when:
-Takeoff and landing
-above Vh
-ILS coupled below 200 feet HAT (cat 1) 100 feet HAT (cat 2)
- below MDA on non precision
-IPRA below 200 HAT
-below 500 AGL for non approach operations
-in RVSM unless able to hold +/- 65 feet
-above 164,000 if below 1000 agl, during configuration or approach
Automatic flight
Turn knob max bank angle
Approximately 35 degrees
Automatic flight
Pilot/copilot engage bank angle
25 +/-3
Automatic flight
Course intercept bank angle
25 +/- 3
Automatic flight
On course bank angle
10
Automatic flight
Localizer tracking
15 +/- 3
Vertical functions
IAS hold
+/- 3
Vertical functions
VS hold
+/- 70 fpm at 1000 fpm
Vertical functions
ALT hold
+/- 40 feet of initial altitude
Vertical functions
ALT SEL
+/- 40 feet with +/- 75 foot overshoot at 1000 fpm
Outflow valve differential control
14.3 +/- .2 in. Hg
Safety valve
15.0 +/- 0.3 in Hg (do not exceed 16)
Cabin differential pressure
Max 15.2 in. Hg
Flaps 10 percent
220
Flaps 20 percent
210
Flaps 30 percent
200
Flaps 40 percent
190
Flaps 50 percent
183
Flaps 60 percent
165
Flaps 70 percent
155
Flaps 80 percent
150
Flaps 90 percent
145
Flaps 100 percent
145
Landing gear extended
168
Landing lights extended
250
Cargo door open and locked, ramp up and locked
250
Paratroop air deflectors (opening)
150
Paratroop doors open and locked
250
High speed drogue
185-250
Low speed drogue (extending and retracting)
105-120
Low speed drogue (receiver engaged)
130
Severe turbulent air operations
180
Inoperative windshield ain’t-ice below 10k
187
Oxygen regulator pressure
270-340 (breathing)
270-455 (no flow)
Battery voltage
24 Vdc
Min to charge 22
Loads (% of normal rated)
Ac generator 0-125
Ess and main DC busses 0-125
Propeller windmilling limitation for air start:
NG < 7%, rotating <1/2 revolution/sec
3 min, or accelerate NG above 7%
Or pull fire handle
Propeller windmilling limitations for air start:
NG >/= 7%, rotating < 1/2 rev/sec
20 min or pull fire handle
Propeller windmilling limitation for air start
Propeller windmilling > 1/2 rev/sec up to 100%
5 min or pull fire handle
Propeller windmilling limitation for air start:
Fire handle pulled, propeller stopped or rotating <1/2 rev/sec
6 hours, run for 20 min to reset 6 hours
