Limits Flashcards
NP1/NP2
105-107% - 12 second transient
101-105% - transient
95-101% - continuous
91-95% - transient
20-40% & 60-90% - avoid operations
NR (power on)
101-107% - transient
95-101% - continuous
91-95% - transient
NR (power off autorotation)
110% - maximum
105%-110 - transient
90- 105% - normal
NG
105-106% - 12 second transient
0-105% - continuous
(Q) 10 second transient - dual engine
100-144% - above 80 KIAS
120-144% - 80 KIAS or below
(Q) 10 second transient - single engine
135-144% - 10 second transient
Back up pump operations
TEMP Operation / cooldown
-54° - 32° Unlimited / —
33° - 38° 24 min / 72 min
39° - 52° 16 min / 48 min
Starter limits (hot weather)
</= 15°: 2 starts|3 min|2 starts|30 min
>15°-52°: 2 starts|30 min
(2 starts = start, 60 second rest, start)
Windshield anti-ice limit
27° anti-ice check max temp
Rotor break limit
76% NR emergency max rotor speed
<40% NR/150-180 PSI Eng off no < 12 sec
450 PSI / 690 PSI Min/max rotor break PSI
Slope limits
15° left wheel/right wheel/ nose up
6° nose down
15 knot max tail wind
Landing limits
540 fpm/360 fpm Level/slope < 16,825 lbs
300 fpm/180 fpm Level/slope > 16,825 lbs
Q continuous dual engine
0-100% above 80 KIAS
0-120% at or below 80 KIAS
Q continuous single engine
0-135% single engine
Engine oil pressure
100-120 PSI - 5 minute limit
26-100 PSI - normal
22-26 PSI - idle
Engine oil temp
135-150° - 30 min limit
-20-135° - continuous
TGT
0-793 Normal
793-846 30 min
846-879 10 min
851 Abort start
879-903 2.5 min
903-949 12 sec transient
Transmission oil pressure
65-130 PSI Precautionary
30-65 PSI Continuous
20-30 PSI Idle and transient
30-35 PSI >10° nose up
10-15 PSI >15° nose up
Transmission oil temperature
105-140° Precautionary
-20-105° Continuous
APU operations
> /= 43° with rotor and engine on: 30 minutes
</= 51° with rotor and engine off: continuous
APU oil hot caution: 30 minute cooling
Vne
193
Landing/search light extended
180
Gunner window open
170
1 hydraulic pump/1 sas inop
170
2 hydraulic pumps/2 sas inop
150
Cabin doors open
145
2 hydraulic pumps/2 sas inop (IMC)
140
1 engine inop
130
Landing light extended by:
130
Max speed auto with stab failure
120
Best auto glide distance (clean configuration)
110
Search light extended by:
100
Roll on landing
60 GS
Rotor start and stop (wind speed)
45 knots
Side/rearward hover
45 Knots
Roll/Pitch limit
Roll = 60° (30° primary servo fail caution)
Pitch = 30°
Cargo hook limits
9,000 lbs max load
30° bank limit
35 knots rearward flight
Rescue hoist limits
600 lbs max load
30° bank limit
35 knot rearward flight
1,000 fpm max rate of decent
High speed yaw maneuvers
> 80 KIAS avoid abrupt full pedal inputs
Pressure refuel max rate
300 gal/min at 55 PSI
8 net restraint rings in cargo compartment
3,500 lbs in any direction
Cabin ceiling tie downs
4,000 lbs
Cargo floor max capacity
300 lbs per sq/ft
Max capacity for storage compartment
125 lbs
Turbulence and thunderstorm operation
Intentional flight into severe turbulence or thunderstorms is prohibited
With slingload and inop collective trim - flight into any turbulence is prohibited
17 tie down fittings on cargo floor
5,000 lbs in any direction
Max gross weight
22,000
With external lift mission 23,500
ESSS/ERFS helicopter on ferry mission - 24,500
Operative equipment for flight into known icing
Trace or light:
Insulated ambient air sensing tube
Windshield anti-ice
Engine anti-ice
Engine inlet anti-ice modulating valve
Pitot heat
Moderate icing:
+blade de-ice
Flight into known heavy or severe icing is prohibited
Fuel limits
> 200 lbs (each tank) - normal
0-200 lbs - precautionary
Autorotation speeds
<16,825 lbs - 150 Vne
>16,825 lbs - 130 Vne
Stab fail - 120 Vne
Recommended - 80 kts
Stabilator fail airspeed limits
> 40 KIAS - 0°
<40 KIAS - Full down
Auto rotation - 120 Vne
Prohibited maneuvers
Hovering turns >30° per/sec
Simultaneous movement of both PCLs during flight to idle or off
Rearward ground taxi
Intentional maneuvers beyond 30° pitch and 60° roll
Restricted maneuvers
Manual operation of stabilator in flight
Downwind hovering
High speed yaw above 80KIAS; avoid abrupt full pedal inputs
Bank angles limited to 30° with PRI SERVO FAIL caution