Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NATOPS > Limits > Flashcards

Limits Flashcards

0
Q

Engines are limited by…

A

Ng, Np, TGT, oil pressure, oil temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Anytime an operational limit is exceeded…

A

An appropriate entry shall be made on a MAF. The entry shall state what limit(s) were exceeded and include range, duration, and any additional data that would aid maintenance personnel.

Note: If a limit is exceeded to the extent that a red “XXX” is indicated, the crew shall land as soon as practicable.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Start cycle definition

A

Starter initiation, acceleration in Ng, and starter dropout/disengagement. A 60-second delay between start attempts is required any time a start is aborted, except during emergencies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Crossbleed starts

A

May be attempted with the operating engine at or above 94% Ng and rotor speed at 100% Nr. Engine starts with the main rotor blades and/or tail rotor pylon folded are prohibited.

Caution: Donor of Ng less than 94 percent may result in hot starts.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

DECU TGT Limits (IRP)

A

0-810: continuous: green
>810-851: 30 mins: yellow
>851-903: 2.5 mins: Red
>903-949: 12 secs: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

EDECU TGT Limits (MRP)

A 
0-810:   continuous:  green
>810-851:    30 mins:  yellow
>851-878:   10 mins:  yellow 
>878-903:   2.5 mins:    Red
>903-949:     12 secs:   Red
    949:          Max:         Red
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Np Limits

A

> 96%: Avoid: Red
96-101%: Cont: Green
101-120%:12 sec:Yellow
120%: Max: Red

Caution: Operating engine steady state between 20 to 40% Np or 60 to 75% Np may cause engine damage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Nr limits

A 
<96%:   Avoid:  Red
  96-101%: Cont: Green
101-120%:   P:   Yellow
     120%:    Max:    Red
127, 137, 142: OL:  Red
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Dual-Engine Q <80 KIAS

A

0-120%: Cont: Green
120-144%:10 s: Yellow
144%: Max: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Dual-Engine Q >80 KIAS

A

0-106%: Cont: Green
106-127%%:10 s: Yellow
127%: Max: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Single-Engine Q

A

0-135%: Cont: Green
135-144%:10 s: Yellow
144%: Max: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Ng Limits

A

0-98%: Cont: Green
98-102%: Cont: Yellow
102-105%:12 sec: Red
105%: Max: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

XMSN Temperature

A

-50-105: Cont: Green
105-120: P :Yellow
120: Max : Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

XMSN Pressure

A 
<20: Min: Red
20-30: Idle and transient: Yellow
30-65 (45-60 in lvl flt): Cont: Green
65-130: P: Yellow
130: Max: Red
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Engine Oil Temp

A

-50-135: Cont: Green
135-150: 30 mins: Yellow
150: Max: Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Engine Oil Pressure

A 
22: Min: Red
22-26: P: Yellow
26-100: Cont: Green
100-120: P: Yellow
120: Max: Red
Note: Normal idle range is 22 to 55 psi.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Engine Starter Limits

A

Engine Start:
<16: 60-60-60-30 mins
16-52: 60-30 mins

Engine Motoring:
Any temp: 2 mins-5mins-2 mins-30 mins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Engine operation with…

A

the gust lock engaged is prohibited

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Minimum Planned Fuel on Landing

A

Shall be no less than 225 lbs (approximately 20 mins) of fuel per main tank. With fuel less than 300 lbs per main tank, maintain balanced flight at AOBs greater than 30 degrees.

19
Q

APU Limits

A

The APU is not intended for routine in-flight use. Operation of the APU in flight shall be limited to essential operations only. Acceptable in-flight use includes EPs, single engine training, practice autorotations, and powering the ECS during extreme temperature operations.

20
Q

Transmission is limited by:

A

Nr, torque, oil pressure, and oil temperature

Note: Prolonged hovering in hot weather 95 degrees and high gross weight may cause temperatures to rise in the yellow precautionary range. Operations in the precautionary range for less than 30 mins durning any one flight under these conditions is acceptable.

21
Q

Transmission Oil Pressure Limitations

A

During steady-state level pitch attitudes xmsn pressure should be between 45-60.

The following conditions do not constitute an immediate emergency situation, but may be indicative of a degraded lubrication system. Maintenance action shall be performed to prevent potential long-term damage to the gear box:

  • Steady state pressure outside of 45-60 but w/in normal 30-65.
  • Flux not to exceed a range of 10 psi within normal 30-65.

During transient pitch or steady-state nose-high pitch attitudes xmsn oil press flux (including momentary flux below 30 psi and transient drops below 20 psi for up to 1 sec) are acceptable. Press flux below 30 psi shall be limited to 30 mins

22
Q

Max Wind Velocity for rotor engagement or disengagement

A

45 kts from any direction

23
Q

Airspeeds

A 
Auto: 100 KIAS
Sideward/Rearward flight: 45 KIAS (35 with an external load)
Two sas inop in IMC- 125 KIAS
SAS/Boost Off- 140 KIAS
Either PRI SERVO PRESS caution- 125 KIAS
Cabin doors open- 120 KIAS
Cabin doors open/closing- 100 KIAS
Gunner windows opening/closing- 170 KIAS
Landing light in transition- 130 KIAS
Searchlight in transition- 100 KIAS
Aircraft gross weight >22,000 lbs with an external load- 120 KIAS
24
Q

Maneuvering with Rescue Hoist Loads rate of descent

A

1000 fpm

25
Q

Hovering Limits

A
  1. Prolonged rearward flight and downwind hovering should be avoided to prevent accumulation of exhaust fumes in the helicopter and heat damage to window on open cabin doors
  2. Hovering turns at a rate in excess of 30 degrees per second.
26
Q

Max AOB with an external load

A

30 degrees in forward flight

  • 20- 20 degrees
  • 30- 0 degrees
27
Q

AOB limits

A

Normal operations: 45 degrees
Operations above 10,000 DA: 30 degrees
Either PRI SERVO PRESS caution on: 30 degrees
SAS/BOOST OFF flight: 30 degrees

28
Q

Max Operating Density Altitude

A

13,000 feet

29
Q

Prohibited Manuevers

A
  1. Aerobatic flight.
  2. Practice full-autorotation landings.
  3. Intentional approaches into or inducement of retreating blade stall.
30
Q

Rotor Brake Operating Limits

A

Max rotor speed for rotor brake application: 76 percent Nr
Routine rotor stops shall be made between 30 and 50 percent Nr. Routine rotor brake stops should be limited to 180 psi to extend service life.

31
Q

Blade, Pylon, and Stab Fold and Spread Limits

A

Max wind velocity for blade fold and spread: 45 kts from any direction
Following a complete blade fold and spread cycle, allow a 10-min cooling period before commencing another blade fold and spread evolution.
Max wind velocity for tail pylon or stab fold/spread operations is 45 kts from any direction.

32
Q

Landing Limits

A
  • Max ROD for level terrain shall not exceed 540 fpm.
  • Max ROD for sloped terrain shall not exceed 360 fpm.
  • Max touchdown and takeoff speed shall not exceed 60 KGS with tailwheel locked and 20 KGS with tailwheel unlocked.
  • Max braking speed is 35 KGS.
  • Slope landing limits: 9 degrees nose up/12 cross slope/6 nose up
  • Downwind landings should be avoided.
33
Q

Window Limits

A

Windows shall not be installed or removed in flight, except during actual aircraft emergencies.

34
Q

Aircraft Operating Gross Weight Limitations

A

Max operating gross weight: 23,500
Aviation ships: 23,500
Air-capable ships: 22,500

35
Q

Internal Load Weight Limits

A

Total Internal Weight in the cabin aft of the cockpit: 5, 500 lbs
Max weight for palletized cargo is 4,733 lbs
Max weight for a single pallet of cargo is 3,000 lbs

36
Q

External Load Weight Limitations

A

Max external load when employing the cargo hook: 8,000 lbs

Max load when employing the rescue hoist: 600 lbs

37
Q

Min Aircraft Equipment for Night Flight over Water

A

LAWS

Altitude Hold

38
Q

Min Equipment for Flights into Forecast or Known Icing Conditions

A

All installed anti-ice equipment (windshield, engine, rotor) shall be operational prior to flight.

39
Q

Blade Deice not Installed

A

Helicopters not equipped with operable blade deice equipment are prohibited from flight into forecast or known icing conditions (ambient temperature of 5 degrees or blow in visible moisture).

40
Q

Helos Equipped with Operable Anti-ice/Deice

A

Helos equipped with operable anti-ice and blade deice equipment are permitted flight into forecast or known trace or light icing conditions.

Warning: Flight into forecast or known moderate or severe icing conditions is prohibited.

41
Q

Helo Emergency Egress Lighting

A

Except in in emergency situations, helicopter emergency egress lighting system (ADHEELS and IHEELS) shall be operational for all overwater flights requiring passengers/non-aircrew in the cabin.

42
Q

Temperature Limitations

A

Operations at temperatures below -40 deg C (-40 deg F) or above 60 deg C (140 deg F) are prohibited.

43
Q

Backup Hyd Pump Limits

A

Rotor System Static:

33-38 deg: 24 oper: 72 cool
39-60 deg: 16 oper: 48 cool

44
Q

APU Operating Limits

A

Rotors not engaged: APU may be operated continuously up to an ambient temperature limit of 51 deg C.

Rotors engaged: APU may be operated continuously up to an ambient temp of 43 deg C. If operating the APU between 43 and 60 deg C, operating is limited to 30 mins.

Caution: Exceeding time or ambient temperature limits may cause APU overheating, performance degradation, and a reduction in APU reliability.

NATOPS (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions