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AH64 5/9 Exam > Ch5 Limits > Flashcards

Ch5 Limits Flashcards

1
Q

Any time an operational limit is exceeded, an appropriate entry shall be made on DA FORM __________________. Entry will state what limit or limits were exceeded, range, time beyond limit and any additional data that would aid maintenance personnel in the maintenance action that may be required.

A

2408-13-1

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2
Q

The minimum crew required to fly the helicopter is a ___________________________________.

A

Pilot and a copilot

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3
Q

The minimum crew required for maintenance ground runs {engine(s) running} is a ______________ _______ ___________ occupying the ______ station. A __________ ___________ may be authorized to occupy the CPG station during ground maintenance at the discretion of the_________________.

A

Maintenance Test Pilot
PLT’s
Technical observer
Commander

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4
Q

Rotor Speed (NR) Limitations

LIMITS- NR (%) Digital Readouts
________ Maximum (__ ____ ____)
________ Transient (___________)
________ High rotor warning annunciated (___________)
________ Normal (__________)
________ Low rotor warning annunciated (_____________)
________ Transient (__________)

A

Rotor Speed (NR) Limitations

LIMITS- NR (%) Digital Readouts
110 Maximum (>110 red)
105-110 Transient (yellow)
105 High rotor warning annunciated
97-104 Normal (green)
96.5 Low rotor warning annunciated
0-96 Transient (red)

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5
Q

NOTE It is normal for oil pressure to be high during first start when oil is cold. Oil pressure should return to formal limits after ___ ___________ of operation at idle. Do not accelerate above ground idle until oil pressure can be held at or below maximum limit throughout the acceleration.

LIMITS- ENG1 or 2 OIL PRESSURE (PSI)
________ Maximum (______________________)
________ Normal (____________)
________ Minimum (_________________)

A

5 minuets

LIMITS- ENG1 or 2 OIL PRESSURE (PSI)
120 Maximum (>120 red w/box)
23-120 Normal (green)
23 Minimum (<23 red)

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6
Q

Hydraulic Systems. Primary (PRI) utility (UTIL), and accumulator (ACC) hydraulic (HYD) pressure (PSI)

LIMITS- HYDRAULIC PRESSURE (PSI)
_________ Transient- permitted for __________ (________)(___________________)
_________ Transient- permitted for __________ (________) (___________________)
_________ Normal (__________)
_________ Minimum (___________________)

A

LIMITS- HYDRAULIC PRESSURE (PSI)
>3410 Transient- permitted for 5 sec (yellow) (≥5sec red w/box)
3310-3400 Transient- permitted for 5 min (yellow)( ≥5min red w/box)
2700-3300 Normal (green)
1260 Minimum (<1260 red w/box)

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7
Q

WARNING: Once the EMERG HYD button is pressed on, it must remain on. Flight control inputs and elevated G loading must be kept to a minimum. Aircrew will not be able to move the flight controls when the Accumulator (ACC) Hydraulic Pressure drops below approximately ________ ______.

A

1650 PSI

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8
Q

Engine Starter Limitations: The Air Turbine Starter (ATS) is capable of making the number of consecutive start cycles listed below, when exposed to the environmental conditions specified, with an interval of at least ___ ___________ between the completion of one cycle and the beginning of the next cycle. A starting cycle is the interval from start initiation and acceleration of the output driveshaft, from ______ rpm, to ________ _______________. The ____________ delay between start attempts applies whe the first attempt is aborted for any reason and it applies regardless of the duration of the first attempt. If motoring is required for an emergency, the ___________ delay does not apply.

A

60 sec
0 RPM, to starter dropout
60 sec
60 sec

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9
Q

Engine Starts at Ambient Temperatures of _______________ and below. _____ consecutive start cycles may be made, followed by a ___ __________ rest period, followed by _____ additional consecutive start cycles. A ____ __________ rest period is then required before any additional starts.

A

61F (16C)
Two
3 minuet
Two
30 minuet

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10
Q

Engine Starts at Ambient Temperatures above ______________. ______consecutive start cycles may be made. A _____ ___________ rest period is then required before any additional starts.

A

61F (16C)
Two
30 minuet

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11
Q

Dual Engine Starts. Dual engine starts are _____________ due to insufficient ________ ______.

A

Prohibited
IPAS Air

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12
Q

Engine Temperature Limitations. Engine Turbine Gas temperature (TGT oC)

Note: Each engine incorporates a TGT limiter control which limits engine operation according to the following indicated TGT value:
Dual Engine: _____________oC
Single Engine: _____________oC

LIMITS- 701D TGT (oC) Digital Readouts
Maximum (______________)
Transient ___________ (___________)
Contingency, __________ (__________)
Max rated power _______________ (_____________)
Maximum during start
Intermediate rated power, __________ (_____________)
Maximum continuous power
Normal (_____________)

A

Engine Temperature Limitations. Engine Turbine Gas temperature (TGT oC)

Note: Each engine incorporates a TGT limiter control which limits engine operation according to the following indicated TGT value:
Dual Engine: 879 ±5o C
Single Engine: 903 ±5o C

LIMITS- 701D TGT (oC) Digital Readouts
949 Maximum (>949 red)
904-949 Transient 12 sec (yellow)
880-903 Contingency, 2.5 min (yellow)
847-879 Max rated power 10 min (yellow)
851 Maximum during start
794-846 Intermediate rated power, 30 min (yellow)
793 Maximum continuous power
0-793 Normal (green)

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13
Q

Engine Power Turbine Speed (Np)

Note: It is not abnormal to observe a Np split between ENG1 and ENG2 during autorotational descent when the engines are fully decoupled from the transmission. An increase from ______ to______ is possible. Note: Maximum Np vertical tape indication is ______.

A

100% to 105%
120%

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14
Q

Engine Power Turbine Speed (Np)

LIMITS- ENG1 OR 2 Np (%) Digital Readouts
_______ Maximum (___________________)
_______ Engine overspeed annunciated
_______ Transient, _________ (______________ _______________)
_______ Normal (__________)

A

Engine Power Turbine Speed (Np)

LIMITS- ENG1 OR 2 Np (%) Digital Readouts
119 Maximum (>119 red w/box)
114 Engine overspeed annunciated
104-119 Transient, 12 sec (yellow, w/box at 114)
0-103 Normal (green)

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15
Q

Engine Torque

LIMITS- TORQUE (%) Digital Readouts with NR < ____%
______ Maximum (_____________)
______ Normal (__________)

LIMITS- TORQUE (%) Digital Readouts with NR < ____%
_____ Maximum (____________)
_____ Normal (__________)

A

Engine Torque

LIMITS- TORQUE (%) Digital Readouts with NR < 50%
30 Maximum (>30 red)
0-30 Normal (green)

LIMITS- TORQUE (%) Digital Readouts with NR < 90%
70 Maximum (>70 red)
0-70 Normal (green)

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16
Q

ENGINE Torques - Dual Engine

LIMITS- TORQUE (%) Digital Readouts - DE
_______ Maximum (_____________)
_______ Transient ________(___________)
_______ Normal (___________)

A

LIMITS- TORQUE (%) Digital Readouts - DE
115 Maximum (>115 red)
101-115 Transient 6 sec (yellow)
0-100 Normal (green)

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17
Q

ENGINE Torques - Single Engine

LIMITS- TORQUE (%) Digital Readouts - SE
______ Maximum (_____________)
______ Transient ___________ (___________)
______ Single engine contingency______ (_______)
______ Single engine MCP (___________)
______ Normal (__________)

A

ENGINE Torques - Single Engine

LIMITS- TORQUE (%) Digital Readouts - SE
125 Maximum (>125 red)
121-125 Transient 6 sec (yellow)
111-120 Single engine contingency 2.5 min (yellow)
110 Single engine MCP (green)
0-110 Normal (green)

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18
Q

AUXILIARY POWER UNIT (APU) OPERATING LIMITS: CAUTION: Avoid prolonged operation at _____ -______ NR with the APU running. The APU clutch will oscillate from __________ to __________. This creates high loads on the clutch and shall be avoided.

a. APU operation is ___________ during normal flight. After a fault or aborted start, wait ___ _______ after APU has stopped before attempting another start. After ___ consecutive start attempts, wait ____ ___________ before a third start attempt. No more than ___ start attempts are permitted in ______ _________.

b. During prolonged ground operations greater than ___ ________, observe XMSN TEMP 1 and XMSN TEMP 2 on the SYS page. If the temperatures exceed _____oC, the APU shall be shut down and the transmission fluid allowed to cool for ____ __________ prior to resuming APU ground operations; or transmission fluid may be cooled by operating an engine with rotor turning.

A

94% - 96%
Engaged ; disengaged

a. Prohibited
30 sec
Two
20 min
Three
One hour

b. 30 min
140*C
30 min

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19
Q

WEIGHT LIMITATIONS:
Max gross weight ________________
Non Tactical ferry flights _______________

A

20,260 lb
23,000 lb

20
Q

AIRSPEED OPERATING LIMITS:
a. Autorotation: Maximum airspeed for autorotation is ___________. Above ___________, drag on the rotor system will cause NR to decay rapidly.

A

145 KTAS
145 KTAS

21
Q

AIRSPEED OPERATING LIMITS:
b. Single engine operation, greater of:
1. _____% of ______ determined from figure 5-12 using the _________ _________ ________. If above this, a successful autorotation may not be possible due to rapid NR decay

   2. The airspeed for minimum power determined from the applicable chapter 7 cruise charts using the \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ lines.
A
  1. 67% ; Vne ; Gross Weight Line
  2. MAX END / MAX R/C
22
Q

AIRSPEED OPERATING LIMITS:

c. During Manual stabilator Operations: -Based on stabilator position, the stabilator position and nominal airspeed restrictions are displayed on the _____, ______ ______ and ______ pages, as described in paragraph 2-47 d.

A

FLT, FLT SET, and SYS

23
Q

AIRSPEED OPERATING LIMITS:

d. Maximum Rearward and Sideward airspeed is _________ for all gross weights due to the possibility of loss of tail rotor effectiveness.

A

45 KTAS

24
Q

AIRSPEED OPERATING LIMITS:

e. Maximum airspeed for searchlight extension. The searchlight is designed for operation (extend/retract/rotate) at airspeeds up to __________. However, if movement operation is not attempted, the lighthead can be left in any extended position at speeds up to Vne.

A

90 KTAS

25
Q

AIRSPEED OPERATING LIMITS:

NOTE: Flight with RCEFS is authorized up to _______. f. Maximum airspeed for CEFS installed in any configuration is ____________.

A

Vne
130 KTAS

26
Q

AIRSPEED OPERATING LIMITS:

g. Maximum Airspeed for Stores Jettison. Jettison of external armament stores is not authorized except for emergency situations and then only from unaccelerated flight during:
1. Maximum airspeed for stores jettison is ___________
2. _________ to __________ (___________________, if possible)
3. _________ to __________ (___________________, if possible)

A
  1. 130 KTAS
  2. Hover to 45 KTAS (minimized side slip, if possible)
  3. 45 KTAS to 130 KTAS (ball centered, if possible)
27
Q

AIRSPEED OPERATING LIMITS:

h. External Tanks Jettison. Jettison of external fuel tanks is not authorized except for emergency conditions. Every effort should be made to jettison the tanks from _________, _________ ________ at airspeeds less than __________.

A

Trimmed, level flight
100 KTAS

28
Q

AIRSPEED OPERATING LIMITS:

i. Flight below 3,500 ft Density Altitude. For flights below 3,500 ft density altitude, do not exceed ________________________________ for flight at 3,500 ft Density altitude per figure ____-____.

A

The maximum allowable load factor
5-13

29
Q

AIRSPEED OPERATING LIMITS:

j. Airspeed Limits for Aircraft Operating at 9,000 ft DA and Greater. Altitude and aircraft gross weight shall be limited to figure 5-11.
1. Level Flight Restriction. Aircraft shall maintain a minimum of __________ and shall not exceed a maximum of _________. This limitation does not apply to MTF Max power checks.
2. Maneuvering Flight. Aircraft shall maintain a minimum of _________ and shall not exceed a maximum of __________.
3. Takeoff and landings. Takeoff and landings are authorized to transit below the minimum airspeed for level and maneuvering flight .

A
  1. 40 KTAS, 130 KTAS
  2. 57 KTAS, 108 KTAS
  3. …
30
Q

MANEUVERING LIMITS WARNING:

Extended maneuvering flight below _____ and / or high sideslip angles with nose low altitudes with low fuel can result in the fuel pickup in the fuel cell ingesting nitrogen instead of fuel. This can result in momentary loss of power or engine flameout. CAUTION: Maneuvering flight requiring large abrupt collective pitch, roll or yaw inputs at airspeeds below _______ should be avoided.

NOTE:
-Performing aggressive aircraft maneuvers may cause oil leaks past the engine #3 bearing seal which could result in high oil consumption.
- During training these maneuvers shall not be flown with less than _____ pounds of fuel remaining in each fuel cell.

For normal load factors, refer to Figure 5-13. Intentional maneuvers beyond attitudes of _____ in pitch or ______ in roll are prohibited.

A

0 G
45 KTAS

400 lbs
+/- 60*
+/- 120*

31
Q

MANEUVERING LIMITS:

a. Excessive Tail Rotor Scissors Loads. Avoid aggressive directional and lateral control inputs greater than ______________ when conducting combat maneuvers requiring a left turn.

A

1 inch/second

32
Q

MANEUVERING LIMITS:

b. Excessive Tail Rotor Loads. Avoid large _______ _______ inputs in arresting right hovering/low speed yawing turns greater than _____/______. This is to prevent excessive tail rotor drive system loads.

A

Pedal step
60*/second

33
Q

MANEUVERING LIMITS:

c. Flight with the canopy open is _____________, except for __________________________.

A

Prohibited; smoke/flume elimination

34
Q

MANEUVERING LIMITS:

LANDING LIMITS. Do not complete a landing on terrain which produces a pitch attitude change from a hover greater than _____ nose up or _____ nose down; or a roll attitude greater than ____. Data is not available beyond these limits at gross weights above _________

CAUTION:
-Slope landing ground stability data is not available for asymmetric configurations. Potential for aircraft rollover during ground taxi or ground maneuvering is unknown and may be critical during adverse wind conditions. Caution should be exercised in known or forecast winds or wind gusts over _____ kts.
-Slope landing data is not available for asymmetric configurations. Slope landings which produce roll attitudes of ______________ shall be avoided.

A

7* ; 10*
10*
17,650 lb

25 kts
5 degrees

35
Q

MANEUVERING LIMITS:

e. CEFS LIMITS
1. CEFS are restricted to a ______ limit
2. External tanks shall be in the _______ _______ position (___ nose-up) with respect to the ___________(__).
3. Single CEFS tank installations are _______________.

f. RCEFS LIMITS
1. RCEFS are restricted to the ________ G limits as the aircraft.
2. External Tanks shall be in the _______ _______ position (___ nose-up) with respect to the __________(__).

A

e1. 2 G
e2. Flight stow ; 4* ; waterline (WL)
e3. Not authorized

f1. Same
f2. Flight stow ; 4* ; waterline (WL)

36
Q

ENVIRONMENTAL RESTRUCTIONS:

a. Flight into ________ or _________ __________ turbulence or into _________ __________ turbulence is prohibited.

A

Known ; forecast extreme ; known severe

37
Q

ENVIRONMENTAL RESTRUCTIONS:

b. Intentional flight into _________ or __________ __________ icing conditions is prohibited. Flight in ________ or ________ icing is __________ only as a _________ condition. If icing is encountered the crew will attempt to exit the condition _____________________________.

A

Known ; forecast moderate ; light ; trace ; authorized ; transient ; as soon practicable

38
Q

ENVIRONMENTAL RESTRUCTIONS:

c. Flight into Instrument Meteorological Conditions. The aircraft is __________ for IMC flight.

A

Qualified

39
Q

ENVIRONMENTAL RESTRUCTIONS:

d. Rotor limitations. Start and Stop limits. Maximum wind velocity for rotor start or stop is _____ knots to prevent _______ _______ damage.

A

45 kts ; droop stop

40
Q

USE OF FORCE TRIM

Force trim will not be turned off except in a ___________ or ___________ _______ mode.

A

Failed ; partial failed

41
Q

USE OF FORCE TRIM

NGB PSI*
______ Norm (__________)
______ Min (_________________________)

A

NGB PSI*
25-100 Normal operation (green)
25 Minimum (<25 Red w/box)

42
Q

USE OF FORCE TRIM

NGB TEMP*
_______ Norm (_________)
_______ Max (___________________)

A

NGB TEMP*
0-134 Normal operation (<134 green)
134 Maximum (>134 red w/box)

43
Q

USE OF FORCE TRIM

XMSN PSI*
_______ Norm (___________)
_______ Min (_________________________)

A

XMSN PSI*
25-100 Normal operation (green)
25 Minimum (<25 red w/box)

44
Q

USE OF FORCE TRIM

XMSN TEMP*
______ Norm (_________)
______ Max (___________________)

A

XMSN TEMP*
32-141 Normal operation (<141 green)
141 Maximum (>141 RD w/box)

45
Q

Engine Gas Generator (NG) Limitations

LIMITS- ENG1 OR 2 NG (%) Digital Readouts
Maximum (>______ red)
Transient _____sec (yellow)
Normal (green)
Minimum engine out warning annunciated (<____ red w/box)

A

LIMITS- ENG1 OR 2 NG (%) Digital Readouts
106.0 Maximum (>106.0 red)
105.1-106.0 Transient 12 sec (yellow)
63.1-105.0 Normal (green)
63.0 Minimum engine out warning annunciated (<63.0 red w/box)

AH64 5/9 Exam (2 decks)

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