Chapter 5 Flashcards
Exceeding Operational Limits
Any time an operational limit is exceeded, an appropriate entry shall be made on DA form _____________
Entry shall state what limit or limits were _______, ________, ___________, and any additional data that would aid maintenance personnel in the maintenance action that may be required. The helicopter shall not be _________ until corrective action is taken.
Any time an operational limit is exceeded, an appropriate entry shall be made on DA form 2408-13-1. Entry shall state what limit or limits were EXCEEDED, RANGE, TIME BEYOND LIMITS, and any additional data that would aid maintenance personnel in the maintenance action that may be required. The helicopter shall not be FLOWN until corrective action is taken.
Minimum Crew Requirements
The minimum crew required to fly the helicopter is ____ pilot(s). Additional crew members, as required, will be added ____________________________.
Minimum Crew Requirements
The minimum crew required to fly the helicopter is TWO pilot(s). Additional crew members, as required, will be added AT THE DISCRETION OF THE COMMANDER,IN ACCORDANCE WITH PERTINENT DEPARTMENT OF THE ARMY REGULATIONS.
Engine Instrument Crew Alerting System (EICAS) and PFD Power Pod Color Codes
Red and Yellow striped tapes and red readouts indicate the limit _______________________________________________
Yellow tapes and readouts indicate _____________________________________________________________________________
Green tapes and readouts indicate the _________________________________________________________________________
Engine Instrument Crew Alerting System (EICAS) and PFD Power Pod Color Codes
Red and Yellow striped tapes and red readouts indicate the limit ABOVE OR BELOW WHICH CONTINUED OPERATION IS LIKELY TO CAUSE DAMAGE OR SHORTEN COMPONENT LIFE.
Yellow tapes and readouts indicate THE RANGE WHEN SPECIAL ATTENTION SHOULD BE GIVEN TO THE PARAMETER THE INSTRUMENT REPRESENTS.
Green tapes and readouts indicate the NORMAL OPERATING RANGE OF THE PARAMETER THE INSTRUMENT REPRESENTS.
Rotor Brake/Gust Lock Limitations
- Operating an engine against the gust lock is _______________.
- Rotor Brake shall not be applied with engine(s) operating and rotor turning except __________________________.
- Maximum rotor speed for emergency rotor brake applications is _________% NR.
- Routine stops will be with engine(s) off, NR below ______% and with _______-______psi applied to stop the rotor in not less than _____ seconds.
- Minimum rotor brake pressure for engine start is ________psi. Maximum rotor brake pressure for engine start is _________psi.
- Use of the rotor brake with engine(s) operating is restricted to ____________ and _____________ engine starts and operations at ____________ only.
- Single and dual engine starts and operation at _________ with rotor brake on are not time limited.
- Operating an engine against the gust lock is PROHIBITED.
- Rotor brake shall not be applied with engine(s) operating and rotor turning except DURING AN EMERGENCY STOP.
- Maximum rotor speed for emergency rotor brake applications is 76% NR.
- Routine stops will be with engine(s) off, NR below 40% and with 150-180 psi applied to stop the rotor in not less than 12 seconds.
- Minimum rotor brake pressure for engine start is 450 psi. Maximum rotor brake pressure for engine start is 690 psi.
- Use of the rotor brake with engine(s) operating is restricted to SINGLE and DUAL engine starts and operations at IDLE only.
- Single and dual engine starts and operation at IDLE with rotor brake on are not time limited.
Main Transmission Module Limitations
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 entry on the appropriate maintenance form. Sudden pressure drop (more than ____ psi) without fluctuation require an entry on the appropriate maintenance form.
Under 45 psi // more than 10 psi
Torque (Q)
10 Second Transient
Dual-Engine
Above 80 KIAS ___________ - __________%
80 KIAS or below _________ - _________%
Single-Engine ____________ - __________%
10 Second Transient
Dual-Engine
Above 80 KIAS 100-144%
80 KIAS or below 120-144%
Single-Engine 135-144%
Torque (Q)
Continuous
Dual-Engine
Above 80 KIAS ______ - ______%
80 KIAS or below ______ - ______%
Single Engine ______ - ______%
Torque (Q)
Continuous
Dual-Engine
Above 80 KIAS 0-100%
80 KIAS or below 0-120%
Single Engine 0-135%
Gas Generator Speed (NG)
12-Second Transient _____ - _____%
Continuous _____ - _____%
Gas Generator Speed (NG)
12-Second Transient 105-106%
Continuous 0-105%
TGT Limits
12 Second Transient _____ - _____
2.5 Minute Transient (Contingency power) _____ - _____
Start Abort Limit _____ - _____
10 Minute Limit _____ - _____
30 Minute Limit _____ - _____
Continuous _____ - _____
TGT Limits
12 Second Transient 903-949
2.5 Minute Transient (Contingency Power) 879-903
Start Abort Limit 851
10 Minute Limit 846-879
30 Minute Limit 793-846
Continuous 0-793
Engine NP1/NP2
12-Second Transient _____ - _____
Transient _____ - _____
Continuous _____ - _____
Transient _____ - _____
Avoid operations in _____ - _____ and _____ - _____ range except during start and shutdown
Engine NP1/NP2
12-Second Transient 105-107%
Transient 101-105%
Continuous 95-101%
Transient 91-95%
Avoid operations in 20-40% and 60-90% range except during start and shutdown
Rotor Speed (NR)
Power On
Transient _____ - _____
Continuous _____ - _____
Transient _____ - _____
Power Off
Maximum _____
Transient _____ - _____
Normal _____ - _____
Rotor Speed (NR)
Power On
Transient 101-107%
Continuous 95-101%
Transient 91-95%
Power Off (Autorotation)
Maximum 110%
Transient 105-110%
Normal 90-105%
Engine Oil Pressure
_____ - _____ idle
_____ - _____ continuous
_____ - _____ 5 min limit
Engine Oil Pressure
22-26 psi idle
26-100 psi continuous
100-120 psi 5 min limit
Engine Oil Temperature
_____ - _____ continuous
_____ - _____ 30 min limit
Engine Oil Temperature
-20 - 135 continuous
135-150 30 min limit
Transmission Oil Temperature
_____ - _____ continuous
_____ - _____ precautionary
Transmission Oil Temperature
-20 - 105 continuous
105-140 precautionary
Transmission Oil Pressure (P)
_____ - _____ idle & transient
_____ - _____ continuous
_____ - _____ precautionary
Transmission Oil Pressure (P)
20-30 psi idle & transient
30-65 psi continuous
65-130 precautionary
Engine Starter Limits
At ambient temperatures of _____ 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 _____ up to _____, _____ consecutive start cycles may be made followed by a _____ minute rest period that is then required before additional starts.
Engine Starter Limits
At ambient temperatures of 15C and below - two consecutive start cycles may be made, followed by a 3 minute rest period, followed by two additional consecutive start cycles. A 30 minute rest period is then required. At ambient temperatures above 15C and up to 52C - two consecutive start cycles may be made. A 30 minute rest period is then required before any additional start cycles.
Engine Start Limits
Cross bleed starts shall not be attempted unless the __________ or __________ advisory does not appear, and operating engine must be at _____% NG or above and rotor speed at _____%NR.
Engine Start Limits
Cross bleed starts shall not be attempted unless the ENG 1 ANTI-ICE ON or ENG 2 ANTI-ICE ON advisory does not appear, and operating engine must be at 90% NG or above and rotor speed at 100%NR.
Engine Overspeed Check Limitations
Engine overspeed check in flight is __________. Engine overspeed checks, on the ground, are authorized by ____________________ only.
Engine Overspeed Check Limitations
Engine overspeed check in flight is PROHIBITED. Engine overspeed checks, on the ground, are authorized by DESIGNATED MAINTENANCE PERSONNEL only.
Engine Overspeed Check Limitations
Engine overspeed check in flight is __________. Engine overspeed checks, on the ground, are authorized by ____________________ only.
Engine Overspeed Check Limitations
Engine overspeed check in flight is PROHIBITED. Engine overspeed checks, on the ground, are authorized by DESIGNATED MAINTENANCE PERSONNEL only.
Maximum capacity for each storage compartment is ______ pounds.
125 pounds
Maximum cargo hook capacity _________.
9,000 pounds
Max weight is further limited by cargo floor maximum capacity of _____ lbs per square foot.
300 lbs per square foot
Max weight for external lift mission ____________
23,500 lbs
External lift missions with cargo hook loads ______________ pounds and less are limited to ___________ pound maximum gross weight.
8,000 // 22,000
Cabin Ceiling Tiedown Fittings
The four cabin ceiling tiedown fittings have a limited load capability of __________ pounds. The 17 tiedown fittings installed on the cargo floor can restrain a __________ pound load in any direction. The eight net restraint rings in the cargo compartment are rated at __________ pound capacity in any direction.
4,000 pounds
5,000 pound load
3,500 pound capacity
Max airspeed with external cargo hook loads up to 8000 lbs is _____ KIAS
140 KIAS
Shall not exceed 120KIAS - maximum airspeed with external cargo hook loads greater than 8,000 pounds and a corresponding gross weight greater than 22,000 pounds (will vary due to the external load physical configuration).
Max airspeed for one engine inoperative is _____ KIAS
130 KIAS
Max airspeed for autorotation at a gross weight of 16,825 lbs or less is _____ KIAS
150 KIAS
Max airspeed for autorotation at a gross weight of greater than 16,825 lbs is _____ KIAS.
130 KIAS
Sideward/rearward flight into the wind, when combined with wind speed, shall not exceed _____ KIAS (_____ knots with ESSS)
45 KIAS // (35 knots with ESSS)
SAS inoperative limits
One SAS inoperative _____ KIAS
Two SAS inoperative _____ KIAS
Two SAS inoperative in IMC _____ KIAS
170 KIAS
150 KIAS
140 KIAS
Hydraulic system inoperative limits
One hydraulic system inoperative _____ KIAS
Two hydraulic systems inoperative _____ KIAS
Two hydraulic systems inoperative in IMC _____ KIAS
170 KIAS
150 KIAS
140 KIAS
Maximum forward airspeed that landing light must be extended prior to reaching
130 KIAS
Airspeed limit when landing light is extended
180 KIAS
Maximum forward airspeed that search light must be extended prior to reaching
100 KIAS
Airspeed limit when search light is extended
180 KIAS
The maximum airspeed for autorotation shall be limited to 100 KIAS with Volcano installed
100 KIAS
Maximum airspeed with skis installed
155 KIAS
Cabin doors may be fully open up to
Up to 145 KIAS
Gunner or BAM window(s) may be fully open up to
170 KIAS
BAM window(s) shall not be transitioned open or closed above
120 KIAS
Flight with cockpit door(s) removed is
Prohibited
If you are required to open cabin doors in flight, the aircraft must be below _____ KIAS and crew members opening the cabin door must be __________________________________.
80 KIAS
Secured to the aircraft prior to opening cabin door.
Airspeed Limits following failure of the Automatic Stabilator Control System
Manual control is available:
- The stabilator shall be set full down at speeds below _____ KIAS
- The stabilator shall be set at 0 degrees at speeds above _____ KIAS
- Autorotation airspeed shall be limited to _____ KIAS at all gross weights.
40 KIAS
40 KIAS
120 KIAS
Hovering turns greater than _____ per second are prohibited. Intentional maneuvers beyond attitudes of _____ in pitch or over _____ in roll are prohibited.
30 degrees per second // beyond attitudes of +/- 30 degrees in pitch or over 60 degrees roll are prohibited.
Simultaneous moving of ___________________ to ________ or ________ (throttle chop) in flight is prohibited.
ENG POWER CONT levers to IDLE or OFF (throttle chop) in flight is prohibited.
____________ ground taxi is prohibited.
Rearward
Restricted maneuvers
Manual operation of the stabilator in flight is ___________ except as required by formal training and maintenance test flight requirements or as alternate stabilator control in case the _____________ malfunctions. Prolonged rearward flight and downward hovering are to be avoided to prevent accumulation of _____________ in the helicopter and _________ to windows on _________.
Prohibited
AUTO mode
Exhaust fumes
Heat damage to windows on open cargo doors
Maneuvering Limitations
Note: Maneuvers entered from a low power setting may result in ____________ of _____%NR or greater.
Transient droop of 5% NR or greater
High speed yaw maneuver limitations
Above ______ KIAS avoid _______________________________ to prevent excess tail rotor system loading.
80 KIAS // abrupt, full pedal inputs
Bank Angle Limitation
Bank angle shall be limited to ______ when a PSI SERVO FAIL caution appears.
30 degrees
Landing Gear Limitations
Gross weights of up to 16,825
__________ = on level terrain
__________ = on slopes
Above 16,825 pounds gross weight
__________ = on level terrain
__________ = on slopes
Gross weights up to 16,825
540 FPM = on level terrain
360 FPM = on slopes
Above 16,825 pounds gross weight
300 FPM = on level terrain
180 FPM = on slopes
Landing Speed Limitations
Maximum forward touchdown speed is limited to ______ knots ground speed on level terrain.
60 knots ground speed
Slope Landing Limitations
_____ nose-up, right wheel up or left wheel upslope. The slope limitations shall be further reduced by _____ for each _____ knots of wind. _____ nose downslope. Landing in 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 ____________.
Slope landings with FLIR installed are limited to _____ nose-up, and _____ right wheel up or left wheel upslope. The slope limitations shall further be reduced by ______ for every ______ knots of wind.
Slope Landing Limitations
15 degrees nose-up // reduced by 2 degrees for every 5 knots of wind.
6 degrees nose downslope // tailwinds greater than 15 knots shall not be conducted
Main gearbox operated up to 30 minutes when known to be at nose up attitude
FLIR - 6 degrees nose up // 15 degrees right wheel up or left wheel downslope
Slope limits further reduced by 2 degrees for every 5 kts of wind
Flight in Instrument Meteorological Conditions (IMC)
This helicopter is qualified for operation in IMC.
NOTE: The ice detecting system is calibrated for ________ KIAS. When flying at airspeeds above ________KIAS, the ice rate meter will indicate higher LWC than the actual conditions.
100 / 100
Flight in Icing Conditions
Helicopters with the following equipment installed, operational, and turned on are permitted to fly into _______ or ________ icing conditions.
- __________
- __________
- __________
- __________
- __________
For flight into moderate icing conditions, ____________________ must be installed, operational, and turned on. Flight into heavy or severe icing is __________.
Trace / light
- Windshield Anti-ice
- pitot heat
- Engine anti-ice
- Engine inlet anti-ice modulating valve
- Insulated ambient air sensing tube
All equipment in b (above) and blade deice// prohibited
Backup Hydraulic Pump Hot Weather Limits with the rotor system __________ (static)
FAT Degrees C. Operating Time (minutes) Cooldown Time (minutes)
________________ __________________________ __________________________
________________ __________________________ __________________________
________________ __________________________ __________________________
-54 - 32 (-65 - 90) Unlimited - -
33-38 (91-100) 24 72
39-52 (101-126) 16 48
APU Operating Limits
To prevent APU from overheating, APU operation at ambient temperature of _____ and above with engine and rotor operating is limited to _____ minutes. With engine and rotor not operating, the APU may be operated __________ up to an ambient temperature of _________. If APU OIL HOT caution appears a __________ minute cooling period is required before checking oil level.
43C (109F)
30 minutes
Continuously / 51C (124F) / 30 minute
Windshield Anti-Ice Limitations
Windshield anti-ice check shall not be done when FAT is over _____.
27C (80F)
Turbulence and Thunderstorm Operation
Intentional flight into __________ turbulence is prohibited.
Intentional flight into thunderstorms is __________.
Intentional flight into turbulence with a ____________ and an inoperative ____________ is prohibited.
Severe
Prohibited
Sling load / collective trim
Blue Force Tracker Temperature Limits
Caution: Operating the BFT system outside this range may cause failure or erratic operation. Normal operating temperatures range: __________ to __________.
-15F (-26C) to +160F (+71C)
MEDEVAC Mission Sensor
When the ambient temperature is _______ or below and visible moisture is present, the FLIR should be powered on to maintain system readiness and prevent excessive icing.
4C (39F)
