Oil pressure should remain steady during steady state forward flight or in level hover. Momentary fluctuations in oil pressure may occur during transient maneuvers (i.e. hovering in gusty wind conditions), or when flying with pitch attitudes above +6 degrees. These types of oil pressure fluctuations are acceptable, even when oil pressure drops into the yellow range (_______). Oil pressure should remain steady and should be in the ___ to ___ psi range for the UH-60A+, and ___ to ___ psi range for the UH-60L.
below 30 psi
45 to 55
45 to 60
If oil pressure is not steady during steady state forward flight or in a level hover, or if oil pressure is steady but under ___psi, make an entry on DA Form 2408-13-1. Sudden pressure drops (more than ___psi) without fluctuations require an entry on DA Form 2408-13-1.
45psi 10psi
Maximum wind velocity for rotor start and stop is ___KTS from any direction
45kts
Engine Ng (A+ & L)
___sec Trans ___-___
___min limit ___-___
Continuous ___-___
Engine Ng (A+ & L)
12 sec Trans 102-105
30 min limit 99-102
Continuous 0-99
Fuel Quantity (A+ & L)
Normal ___-___
Precautionary ___-___
Fuel Quantity (A+ & L)
Normal 200-1500
Precautionary 0-200
Engine Oil Temp (A+ & L)
___min limit ___-___
Continuous ___-___
Engine Oil Temp (A+ & L)
30 min limit 135-150
Continuous -50-135
Engine % RPM 1-2 (A+ & L)
12 sec Trans ___-___
Transient ___-___
Continuous ___-___
Transient ___-___
Avoid operations in the ___-___and ___-___range except during start and shutdown.
Engine % RPM 1-2 (A+ & L)
12 sec Trans 105-107
Transient 101-105
Continuous 95-101
Transient 91-95
Avoid operations in the 20-40 and 60-90 range except during start and shutdown.
Main Rotor % RPM R (A+ & L)
Power On
Transient ___-___
Continuous ___-___
Transient ___-___
Power Off
Maximum ___
Transient ___-___
Normal ___-___
Main Rotor % RPM R (A+ & L)
Power On
Transient 101-107
Continuous 95-101
Transient 91-95
Power Off
Maximum 110
Transient 105-110
Normal 90-105
Engine Oil Pressure (A+ & L)
___min limit ___-___
Normal ___-___
Idle ___-___
___psi min at ___%Ng and above
Engine Oil Pressure (A+ & L)
5 min limit 100-120
Normal 26-100
Idle 22-26
35psi min at 90% Ng and above
Any time an operational limit is exceeded, an appropriate entry shall be made on DA Form 2408-13. Entry shall state what limit(s) were ______, ______, ______, and ____________that would aid maintenance personnel in the maintenance action that may be required. The helicopter shall _________________________until corrective action is taken
- exceeded
- range
- time beyond limits
- any additional data
- not be flown
Engine % TRQ (A+)
___ - Second Transient
Dual-Engine ___-___
Single-Engine ___-___
Continuous
Single-Engine Only ___-___
Continuous
Dual-Engine ___-___
Engine % TRQ (A+)
10 - Second Transient
Dual-Engine 100% - 125%
Single-Engine 110% - 135%
Continuous
Single-Engine Only 0% - 110%
Continuous
Dual-Engine 0% - 100%
Engine % TRQ (L)
___ - Second Transient
Dual-Engine
Above 80KIAS ___ - ___
80KIAS or Below ___ - ___
Single-Engine ___ - ___
Continuous
Single-Engine ___ - ___
Dual-Engine
Above 80KIAS ___ - ___
80KIAS or Below ___ - ___
Engine % TRQ (L)
10 - Second Transient
Dual-Engine
Above 80KIAS 100% - 144%
80KIAS or Below 120% - 144%
Single-Engine 135% - 144%
Continuous
Single-Engine 0% - 135%
Dual-Engine
Above 80KIAS 0% - 100%
80KIAS or Below 0% - 120%
Main Transmission Oil Pressure (A+/L)
Precautionary ___-___
Continuous ___-___
Idle and Transient ___-___
Main Transmission Oil Pressure (A+/L)
Precautionary 65-130 PSI
Continuous 30-65 PSI
Idle and Transient 20-30 PSI
Main Transmission Oil Temp (A+)
Precautionary ___-___
Continuous ___-___
Main Transmission Oil Temp (A+)
Precautionary 105-120
Continuous -50-105
Main Transmission Oil Temp (L)
Precautionary ___-___
Continuous ___-___
Main Transmission Oil Temp (L)
Precautionary 105-140
Continuous -50-105
Engine Starter Limitations At ambient temperature of ___C and below, ___consecutive start cycles may be made followed by a ___minute rest period, followed by ___additional start cycles. A ___minute rest period is then required. At ambient temperatures above ___C up to ___C, ___consecutive start cycles may be made. A ___minute rest period is then required before any additional start cycles.
Engine Starter Limitations At ambient temperature of 15 °C and below, 2 consecutive start cycles may be made followed by a 3 minute rest period, followed by 2 additional start cycles. A 30 minute rest period is then required. At ambient temperatures above 15 °C up to 52 °C, 2 consecutive start cycles may be made. A 30 minute rest period is then required before any additional start cycles.
Pneumatic Source Inlet Limits The minimum air source required to start the helicopter is ___psig and ___ppm at ___C. The maximum is ___psig at ___C.
Pneumatic Source Inlet Limits The minimum air source required to start the helicopter is 40 psig and 30 ppm at 149°C. The maximum is 50 psig at 249 °C.
Engine Overspeed Check Limitations Engine overspeed check in flight is __________. Engine overspeed checks, on the ground are authorized by __________________________.
- prohibited
- designated maintenance personnel only
Engine Start Limits Crossbleed start shall not be attempted unless the ____________________ or ________________advisory does not appear, and the operating engine must be at ___%NG speed or above and rotor speed at ___%RPMR
- #1 ENG ANTI ICE ON or #2 ENG ANTI ICE ON
- 90%NG speed or above
- rotor speed at 100% RPMR
Maximum capacity for each storage compartment is ____ .
- 125 pounds
Maximum cargo hook capacity (UH-60A) ______ .
- 8000 pounds
Max weight is further limited by cargo floor maximum capacity of _____________ .
- 300 lbs per square foot
Max airspeed for one engine inoperative ____ .
- 130 KIAS
Max autorotational airspeed gross weight at 16825 lbs or less ____ .
- 150 KIAS
Max autorotational airspeed gross weight more than 16825 lbs is ____ .
- 130 KIAS
Sideward/rearward flight into the wind, when combined with windspeed, shall not exceed ____ .
- 45 KTS
SAS Inoperative
1 SAS - ___
2 SAS - ___
2 SAS and IMC - ___
- 170 KIAS
- 150 KIAS
- 140 KIAS
HYD Inop
1 HYD ___
2 HYD ___
2 HYD and IMC ___
- 170 KIAS
- 150 KIAS
- 140 KIAS
Maximum airspeed for:
Extending Landing Light ____
Extended Landing Light ____
Extending Search Light ____
Extended Search Light ____
- 130 KIAS
- 180 KIAS
- 100 KIAS
- 180 KIAS
Cabin doors may be fully open up to ____ with soundproofing installed aft of station 379.
- 100 KIAS
Cabin doors may be fully open up to ____ with soundproofing removed aft of station 379 or with sound proofing secured properly.
- 145 KIAS
Gunner's window(s) may be fully open up to ____ .
- 170 KIAS
Stabilator shall be full down at speeds ____KIAS and below. Stabilator shall be set at zero degrees at speeds above ____KIAS. Autorotation airspeed shall be limited to ____KIAS at all gross weights Placard airspeed limits shall be observed as not-to-exceed speed (powered flight and autorotation), except in no case shall the autorotation limit exceed ____KIAS
Stabilator shall be full down at speeds 40KIAS and below. Stabilator shall be set at zero degrees at speeds above 40 KIAS. Autorotation airspeed shall be limited to 120 KIAS at all gross weights Placard airspeed limits shall be observed as not-to-exceed speed (powered flight and autorotation), except in no case shall the autorotation limit exceed 120 KIAS
Hovering turns greater than ____per second are prohibited. Intentional meneuvers beyond attitudes of ____in pitch or over ____in roll are prohibited. Simultaneous moving of ________________to _____ or _____ in flight is prohibited. _________ ground taxi is prohibited
Hovering turns greater than 30° per second are prohibited. Intentional meneuvers beyond attitudes of ±30° in pitch or over 60° in roll are prohibited. Simultaneous moving of both ENG POWER CONT levers to IDLE or OFF in flight is prohibited. Rearward ground taxi is prohibited
Manual operation of the stabilator in flight is __________ except as required by formal training and ______________________ requirements or as alternate stabilator control in case of AUTO mode malfunctions. Prolonged rearward flight and downwind hovering are to be avoided to prevent accumulation of _______________ in the helicopter and _________________ to windows on ________________
Manual operation of the stabilator in flight is prohibited except as required by formal training and maintenance test flight requirements or as alternate stabilator control in case of AUTO mode malfunctions. Prolonged rearward flight and downwind hovering are to be avoided to prevent accumulation of exhaust fumes in the helicopter and heat damage to windows on open cargo doors
NOTE: Maneuvers entered from a low power setting may result in ______________ of ______ RPMR or greater. High Speed Yaw maneuver limitations Above ____ KIAS avoid _______________ to prevent excess tail rotor system loading
NOTE: Maneuvers entered from a low power setting may result in transient droop of 5 % RPMR or greater. High Speed Yaw maneuver limitations Above 80 KIAS avoid full pedal inputs to prevent excess tail rotor system loading
Bank angle shall be limited to _____ when either PRI SERVO PRESS caution light appears
- 30°
Do not exceed a touchdown sink rate (feet-per-minute) of:
Up to 16,825#
Level ____ FPM
Slopes ____ FPM
Greater than 16,825#
Level ____ FPM
Slopes ____ FPM
Up to 16,825#
Level 540 FPM
Slopes 360 FPM
Greater than 16,825#
Level 300 FPM
Slopes 180 FPM
Maximum forward touchdown speed is limited to ____ knots ground speed on level terrain
- 60
Slope Limits ____nose-up, right wheel up or left wheel up, reduced by ____ for each ____ knots of wind. ____ nose downslope. Landing in nose downslope conditions with tail winds greater than ____ KTS shall not be conducted. The main gearbox may be operated up to ____ minutes at a time with pressure fluctuations when the helicopter is known to be at a nose-up attitude
- 15° nose-up, right wheel up or left wheel up
- reduced by 2° for each 5 knots of wind
- 6° nose downslope
- 15 KTS
- 30 minutes
Helicopters with the following equipment installed, operational, and turned on are permitted to fly into trace or light icing conditions 1.______________________________________________ 2.______________________________________________ 3.______________________________________________ 4.______________________________________________ 5.______________________________________________ For flight into moderate icing conditions, all equipment (listed above) and ____________ must be installed, operational, and turned on. Flight into heavy or severe icing is ________________.
1. Windshield anti ice
2. Pitot heat
3. Engine anti ice
4. Engine inlet anti ice modulating valve
5. Insulated ambient air sensing tube
For flight into moderate icing conditions, all equipment (listed above) and blade deice kit must be installed, operational, and turned on. Flight into heavy or severe icing is prohibited.
Backup hydraulic pump hot weather limits with the rotor system static
-54°C - 32°C
Operating - Unlimited
Cooldown - N/A
33°C - 38°C
Operating - 24 minutes
Cooldown - 72 minutes
39°C - 52°C
Operating - 16 minutes
Cooldown - 48 minutes
APU Operating Limits To prevent APU overheating, at ambient temperature of _____ and above with the engine and rotor operating is limited to ____ minutes. With the engine and rotor not operating the APU can be operated _____________ up to a temperature of ____ .
43°C
30 minutes
continuously
51°C
Windshield anti-ice check shall not be done when FAT is over _____ .
27°C
Turbulence and Thunderstorm Operation Intentional flight into thunderstorms is ___________. Intentional flight into _________ turbulence is prohibited. Intentional flight into turbulence with a sling load attached and an inoperative __________________ is prohibited
Turbulence and Thunderstorm Operation Intentional flight into thunderstorms is prohibited. Intentional flight into severe turbulence is prohibited. Intentional flight into turbulence with a sling load attached and an inoperative collective pitch control is prohibited
Dual-engine operations with the gust lock engaged are ______________. Single-engine operation with the gust lock engaged will be performed by authorized pilot(s) at ________ only. Gust lock shall not be _________ with engine running
prohibited
idle
disengaged
TGT (A+/L)
12 - Second Transient ___-___
2.5 Minutes Transient ___-___
Start/Abort Limit ___
10 - Minute Limit ___-___
30 - Minute Limit ___-___
Normal Limit ___-___
TGT (A+/L)
12 - Second Transient 903 - 949°C
2.5 Minutes Transient 878 - 903°C
Start/Abort Limit 851°C
10 - Minute Limit 851 - 878°C
30 - Minute Limit 810 - 851°C
Normal Limit 0 - 810°C