NATOPS Limits and Emergency Procedures Flashcards
If a limit is exceeded to the extent that a red “XXX” is indicated..
Land as soon as practicable
Starter delay after aborted start
60 seconds (except emergencies)
Receiving engine shall be at or above _____ prior to advancing PCL to IDLE
24% Ng
TGT (DECU)
0-810 (Cont/Yellow) 810-851 (30 min) 851-903 (2.5 min) 903-949 (12 sec) 949 Max
TGT (EDECU)
0-810 (Cont/Yellow) 810-851 (30 min) 851-903 (2.5 min) 851-878 (10 min as required for Max Power and limiter checks) 903-949 (12 sec) 949 Max
Np
Nr
120 (123% max for FCF only)
127, 137, 142 (Ovspd latch)
Dual-engine TQ (
0-120% (Cont)
120-144 (10 s)
144(max)
Dual-engine TQ (>80 KIAS)
0-106% (Cont)
106-127 (10s)
127 (Max)
Applies when both engines are above 65%
Single-Engine TQ
0-135% (Cont)
135-144 (10s)
144 (Max)
Ng
0-98% (Cont)
98-102.2 (Cont/Yellow)
>102.2-105.1 (12 sec)
105.1 (Max)
XMSN Temp
-50-105 C (Cont)
105-120 (Prec)
120 Max
XMSN Press
20 psi (Min) 20-30 (Idle and Transient) 30-65 (45-60 in level flight) (Cont) 65-130 (Prec) 130 Max
ENG Oil T
-50-135 C (Cont)
135-150 (30 min)
150 Max
ENG Oil Press
22 psi (min) 22-26 (Prec) 26-100 (Cont) 100-120 (Prec) 120 (Max)
Normal idle range 22-55 psi
Starter Limits
Minimum planned fuel on landing
No less than 600 lbs
APU operation shall be limited to
Essential operations only. Includes EPs, Single-engine training, practice autos, powering the ECS during extreme temp operations.
XMSN Note on hovering in hot weather
Prolonged hovering in hot WX (95 F / 35C) and high gross weight may cause temps to rise into yellow/prec. Ops in prec. range for less than 30 min during any one flight is acceptable.
XMSN Oil PX limits
Steady-state level pitch: XMSN oil px should be 45-60 psi. The following is not immediate emergency situation but is indicative of a degraded system. Any discrepancy shall be documented on a MAF.
1) Steady px outside 45-60 but within 30-65;
2) Fluctuations not to exceed 10 psi but within 30-65
During transient-pitch or steady nose-high attitudes, fluctuations (momentary below 30 psi or below 20 psi for up to 1 sec) are acceptable. Operations with psi below 30 psi shall be limited to 30 min.
Rotor Engagement/Disengagement
45 knots any direction
Vne
180 KIAS
Sideward/rearward flight
35 knots
Max speed (autorotation)
100 KIAS
Boost off (Vne)
140 KIAS
Two SAS Inop in IMC
125 KIAS
Either PRI SERVO PRESS
125 KIAS
Searchlight in position other than stowed
160 KIAS
Searchlight in transition
100 KIAS
Dome at trail
70 KIAS/ 45 AOB
Dome below trail
70 KIAS/ 15 AOB
Door opening/closing
60 KIAS
Hovering limits
1) Prolonged rearward flight or downwind hovering should be avoided
2) Hovering turns >30 deg/sec
3) Dipping ops at other than 70’
4) Transducer towing limits: 8 KGS folded / 4 KGS unfolded
Angle of Bank
Normal - 45 deg
Above 10,000’ DA: 30
Either PRI SERVO PRESS: 30
Boost off: 30
Altitude
13,000 feet
Prohibited maneuvers
1) Aerobatic flight
2) Practice full autos
3) Intentional approaches into or inducement of RBS
Rotor brake ops
Max: 76% Nr
Routine: 30-50 Nr
Routine stops should be limited to 180 psi
Blade-fold cooling time
10 minutes
Landing limits
- 19,500 lbs: 480 fpm
- Sloped: 360 fpm
- Max touchdown speed: 75 KGS with tailwheel locked; 20 KGS unlocked
- Taxi: 40 w/ shimmy damper; 20 w/o
- Slopes: 9 deg up/12 deg cross/6 deg down
- Downwind should be avoided
Gross weight
Max: 23,500
Aviation ships: 23,500
Air-capable and amphibs: 22,500
External loads
Cargo hook: 6000 lbs
Hoist: 600 lbs
Required equipment for night flight over water
- LAWS
- Altitude hold
Icing
Equipped with operable anti- and de-icing equipment permitted to fly in trace or light icing conditions. All installed equipment SHALL be operable prior to flight.
APU Temp limits
43 C and above with rotors turning limited to 30 minutes. Unrestricted to 51 C with engine/rotors not turning.
Backup HYD Pump
33-38 C: 24/72
38-60: 16/48
The following should be performed for all emergencies
1) Maintain control of the aircraft
2) Alert crew
3) Determine the precise nature of the problem
4) Complete the applicable emergency procedure or take action appropriate for the problem
5) Determine landing criteria and land as required
Land immediately
Execute a landing without delay. The primary consideration is to ensure the survival of the occupants
Land as soon as possible
Land at the first site at which a safe landing can be made
Land as soon as practicable
Extended flight is recommended. The landing site and duration of the flight is as the discretion on the pilot in command.
