Limits and number Flashcards
Normal inlet temperature with engine anti-icing on
68-88°C
MGB normal oil temp
40-120°C
ACC GB OIL PRESS light
7±1 PSI
NGB OIL HOT light
121±5.5°C
Overspeed Switch Test activates at what?
Activates overspeed test circuit at 95±2% Nf
Brake limits
Utility System Unpressurized: Design Gross Weight on 10° Slope
Utility System Pressurized: @ Design Gross Weight on 20 degree slope
How many thermocouples do we have?
14
Dual point automatic release
200±50 pounds
Maximum taxi speed
40 knots
Underfrequency Protection
91-96% Nr with a time delay of 2-5 seconds
To what Ng does the overspeed solenoid reduce to?
75% Ng
When does the Utility Priority Valve close? Why?
Below 2,000 psi. This is in order to preserve pressure to the 2 STG T/R and AFCS Servo 2.
Rearward Flight Limit
30 KIAS
Supervisory panel limits
115±3 V, 400±20 Hz
Ng Ground Idle, Normal Range, Transient Overspeed
Ground Idle: 60.5-70%
Normal:60.5-101.1
Overspeed: 102.9 for 30 seconds
Heater Fuel consumption and tank
54 pounds per hour from No. 2 Left
Quad Tach Maximum Indication
(Nf/Nr): 130%
NATOPS Minimum Landing Fuel
1,200 pounds
Number of Compressor Stages
14 Stages
T5 416: Continuous/30 minutes/10 minutes
713/753/773°C
Normal Fuselage Clearance to level ground
18”
Individual capacity of each dual point hook
21,600 pounds
NATOPS Recommended Slow Cruise Speed
115 KIAS
External Loads Airspeed Limit
150 KIAS
AFCS hydraulic pressure (and source)
First Stage AFCS Servos: 1,000 psi from 2nd Stage Hydraulics
Second Stage AFCS Servos: 1,000psi from Utility Hydraulic
AOB Limitation for GW less than ___k and DA less than or equal to ___’ and A/S less than or equal to ___ KIAS
56k, 3k’, 130 KIAS: 60°
2 tanks combined maximum capacity
377 gallons (2563 pounds)
BEARING TEMP LIMIT light
> 350°F on the Swashplate
Main Rotor Clearance Droop Stops In
10’ 8”
NGB oil capacity
5.5 quarts
Fuel flow lights
2±1 gallons per minute
Engine start replenishment pressure
80 psi increments via the flapper valve (up to 4k)
Single point capacity
36,000 pounds
ENG OIL PRESS HIGH
100±3 PSI
Length of dual points cargo pendants
7.5’
AFCS Servo 2 to Servo 1 Automatic Transfer Pressure
1,500 psi (and provided 2nd Stage Hydraulics are above 2,000 psi)
Utility hoist cable break strength
3,700 pounds
Main Gearbox reduces ___ rpm to ___ rpm (___% Nr) for the rotor head, and ___ for the intermediate gearbox.
6,323 rpm to 179 rpm (100% Nr), and 4,271 rpm for the IGB.
Supervisory Panel Undervoltage Protection
Activates when less than 100 volts for more than 6 seconds
How many igniters are in the combustion section?
2
How many fault codes can a computer store, and do they remain after power is removed?
5: Stored in nonvolatile memory, and will remain with power removed
MGB oil capacity
22 gallons
The Emergency Landing Gear Handle will discharge ___ pressurized to ___ to lower the gear. The Gauge will read ___ on preflight.
Air, 3,000 psi, 2,500-3,000 psi.
APP low oil pressure
≤6±1 PSI
Normal Ng, T5, Wf and Engine Oil Temp at Ground Idle
Ng = 60.5-70%,T5 = 450-550 C,Wf = 200-350 PPH, Engine Oil = 45-55 C
Engine dwell oil
1.45 gallons
UTILITY PRESS light
<1,500 psi
Auxiliary Fuel Tank capacity
650 gallons each (4420 pounds)
The Second Stage Hydraulic Pump operates at how many gpm?
22.4 gpm
Intermediate gearbox reduction
4,271 to 2,628 rpm
At what airspeed is turn coordination available?
Above 60 knots
Tail Rotor gearbox reduction
2,628 to 699 rpm
ENG OIL HIGH PRESS caution light is permissable for how long on start?
Less than 3 minutes
ENGINE OVERTORQUE light
> 137% total torque
Engine oil temperature transient range and time limit
136-145°C for 10 minutes
Damper pin preflight acceptable range
-0.5 to 1.5”
High Pressure Rotor Brake System Pressure
975±25 PSI
Design gross weight
46,500 pounds
Cyclic Trim Button Numbers below 60 KIAS
2° per second in pitch, 4° per second in roll.
Critical rollover angle
13°
Distance between dual point fuselage hooks
10’
Single point automatic release
525±225 pounds
Empty Weight
32,226 pounds
Sponson fuel dump rate
75 gpm (per sponson). 500ppm (1000 pounds per minute from both)
Pitch Attitude Hold
±1 below 60 knots
Engine Oil Expansion Space
1.15 gallons
___ pressurized to ___ psi is used to dispense agent from the fire bottles into the ___ and ___ of the engines.
Nitrogen, 600 psi, compressor and power turbine sections.
The High Pressure Pump and Filter delivers fuel to the Fuel Control at what psi?
800-900 psi
Cabin compartment static load limit
300 pounds per square foot
Heater overheat switch
Activates at ≥204°C in the plenum chamber, securing the heater
Initial pressure of fuel flow to 12 fuel nozzles
160 PSI
Forward Flight (Vne)
150 KIAS
Amount (pounds) of product in fire bottles
4.5 pounds
IGB INTMD GB chip detector oil temp
140±5.5°C
Engine normal oil temp
40-135°C
Slope landings differ little from normal landings up to what slope angle?
4°
SPPC table is most accurate at _____’ PA, ____ KIAS, ____%Nr.
1000, 90, 100
Number of Crash Attenuating Troop Seats
32
Tail Rotor Cant and Advantage
20° to left (2% increase in lift)
Improves hover capability and permits the Cg to be moved further aft
Low Pressure Rotor Brake can be engaged below what Nr?
25%
ENG OIL QTY LOW
Associated Tank has been depleted by 25% of its fully serviced capacity.
BEARING VIB LIMIT light
2.5 Gs on the Swashplate or 4 Gs on TRDS
Utility hoist cable length
245’
Fire detectors per engine
3
Engine usable oil
1.32 gallons
Cargo winch cable length
80’
T5 416A: Continuous/30 minutes/10 minutes
713/753/792°C
NGB normal oil temp
40-130°C
LDG GEAR UP light and ICS Pulse Tone activates when?
- Gear is up
- Airspeed is below 60KIAS
- RADALT is below 150’ (unless RADALT is off, then anytime below 60 KIAS)
T64-GE-419 SHP and Contingency Power
4,750 SHP (Contingency of 5,000 for 2 minutes)
EAPS doors automatically close/open at what airspeed?
78-88 KIAS
NO.1 ENG ANTI-ICE and NO.3 ENG ANTI-ICE lights (and where)
Duct Temp ≤35°C
APP maximum exhaust gas temp
621°C
Hydraulic Refill reservoir capacity
4 quarts
Number of MGB chip detectors
5
APP Accumulator charge (plus source and preflight reading) , During preflight:
3,000 PSI from Utility System, 50-80°F: 2,800-3,100 psi, 80-115°F: 3,100-3,200 psi
AFCS Servo 1 to Servo 2 Automatic Transfer Pressure
<650 PSI (and provided Utility Hydraulics are above 1,500 psi)
Translational lift becomes effective at what airspeed?
15 knots
Emergency extension of the gear may take from ___ to ___ during forward flight with a load on the nose gear door.
1-2 Minutes
The First Stage Hydraulic Pump operates at how many gpm?
24 gpm
Low Pressure Rotor Brake System Pressure
350±35 PSI
Acceleration limit if ___ or more or ___’ or more
56k and 3,000’ DA or more: .5-1.5 Gs
Landing Gear Actuation Airspeed Limit
140 KIAS
RADALT acceptable test range
100±15’
Torque:
Normal/Continuous: 100%
Precautionary Range:100-137
Climb Powers: 110% for < 60k
121% for >60k
Military Power: 121% for 30 min
10 Minute Transient: 137%
1 Minute Transient: 160%
Fire bottle automatic discharge force
10 Gs
Q gained with EAPS removed
1%
Number of AGB chip detectors
2
External power receptacle rating (VAC, Hz)
115/200 VAC, 400 Hz
EAPS Scavenge blower operates whenever what two conditions are met?
(1) EAPS door closed
(2) Main Transmission oil pressure is above 14psi
Maximum Range Autorotational Airspeed
100-110 knots
TGB OIL PRESS
7±1 psi
AGB oil capacity
8 quarts
When properly tied down, the helicopter can withstand how much wind?
60 knots
2nd fuselage bending mode
4.2 Hz
NGB max transient temperature and time limit
131-145°C for 60 minutes
Secondary pressure of fuel flow to 12 fuel nozzles, allowing fuel to secondary orifices
210 PSI
MGB max temp
145°C
Normal extended Tailskid clearance to level ground
6’
Wind Limits for Rotor Engagement/Disengagement, Blade Fold/Unfold, Pylon Fold/Unfold
45 knots
Tail skid sink rate limit
672 feet per minute
RTR BRK Quad Tach Light
Nr between 25±4 and 50±4%
VIB DETECT on BMS Alphanumeric Display
(Does not display in cockpit) 1.2 Gs on the Swashplate or 1.5 Gs on the TRDS
BEARING TEMP DETECT light
> 275°F on the Swashplate (225°F after AFC 491 Part 3)
NATOPS Recommended Cruise Speed
135 KIAS
T5 hot start indication
650°C
TGB oil capacity
6.75 quarts
Utility hoist capacity
600 pounds
Maximum altitude for the APP
10,000’ Pressure Altitude
SAS Authority
±10%
The Utility Relief Valve opens when?
Begins to open at 3,500 psi. Fully open by 3,850 psi.
If spar pressure drops to ___ or less, the pressure indicator will display two ___ stripes, indicating ___.
5±0.5 psi, black, unsafe condition.
MGB AUX LUBE PUMP light
14±2 PSI
UTILITY PRESS T/R light (and where it is read)
<1,500 psi downstream of 2 STG Servo Shutoff
1 STG PRESS M/R T/R light
<2,000 psi
NGB max temp
145°C
Pedal force to override autopilot
24 lbs
Autotransformer input/output for instrument/avionics
115 VAC to 26 VAC
NATOPS Recommended Climb Speed
100 KIAS
Outer Loop Authority
100%
Nr: Precautionary Range Low, Normal Range, Precautionary Range High, Maximum Operation, Overspeed (Inspection), Overspeed (Removal M/R & T/R), Overspeed (Removal)
Precautionary Range Low: 95-100%
Normal Range: 100-105 <50k; 103-105 >50k Precautionary Range High:105-118 Maximum Operation: 118 Overspeed (Inspection): 118-129 Overspeed (Removal M/R & T/R):125 Overspeed (Removal):129
Actual fuel filter bypass (ENG FILT BY-PASS light on)
> 2.8 PSI
Roll, Pitch, Airspeed, Heading, AutoTurn, FAS authority
100%
Starter Drop Out should occur at:
51-58% Ng
Aux Tank Jettison Limitations
0-150 kts (120 max in the descent), no more than 1,500 fpm descent, 0° angle of bank.
APP overspeed
≥110%
Q 419 Contingency Power
157% for 2 minutes (equals 5,000 SHP)
Refueling pressure
35-55 PSI
2nd Stage and utility heat exchanger blowers turn on
74±3°C
Cabin heater output
600,000 BTU
Fuel Dump Limitations
90-130 KIAS, no more than 1,500 fpm descent, 6,000’ PA
How long does starting the APP take?
The APP will reach 100% in 8-11 seconds.
Maximum allowable gross weight (external loads)
73,500 pounds
Hovering turn limit
360° in 15 seconds (24° per second)
Utility Hydraulic Reservoir Capacity
3.68 gallons
Auxiliary Oil Tank Capacity
2.6 gallons
ENG FUEL BOOST caution light
≤8.5±0.5 PSI
Max number of folding troop seats
55
NO. 2 ENG OVERHEAT light (and how long it may illuminate)
575°F. This light may illuminate for up to 30 seconds during an air restart of the No. 2 Engine.
Ng must windmill for ___ before an engine restart is attempted
30 seconds
IGB OIL PRESS light
7±1 PSI
In-Flight Refueling Airspeed Range
105-120 KIAS
Pitch beeper button re-reference rate for Pitch Attitude Hold
2° per second
Rotor brake pressure when moving blades
40 PSI
Keep eyes how far away from spar pressure indicator (and why)?
24 inches - due to Strontium 90, beta ray radiation source
Minimum time for flow lights
1 minute
Number of TGB chip detectors
1
MGB minimum oil pressure
25 PSI
NGB OIL PRESS light
14±2 PSI
Maximum number of pole type litters in the cabin
24
Acceptable fuels
JP5, JP8
2 STG and UTILITY OIL HOT lights
107°C (Temp maintained below this point by a heat exchanger for each system. Also illuminates if the blower for the respective heat exchanger is off)
Scanning angle for each fire detector
90°
Hydraulic system normal (read: ideal) pressure
3,000 psi
MGB maximum transient range and time limit
121-145°C for 60 minutes
MGB OIL HOT light
121±5.5°C
Acceleration limit if ___ or less and ___’ or less
56k and 3,000’ DA or less: .5-2.0 Gs
Droop Stops go out when?
At 75% Nr
IGB oil capacity
3.25 quarts
Fuel flow indication to abort a start
> 175 pounds per hour before light off
Damper accumulator pressure
910 psi
1 and #3 FUEL LOW caution lights
666±30 pounds (30 minutes of fuel remaining)
Heater vent and combustion fans will operate even after shutdown until temperature drops to what, and where?
<49°C in the plenum chamber
Fuel entering the Fuel Control passes a Pressure Regulating Valve, where a ___ psi pressure drop is maintained
40 psi
MGB OIL PRESS, BLADES SPREAD, and FLIGHT READY lights go out
14 PSI
Heading Hold
±2°
ENG FLTR BYPASS caution light (Impending bypass)
> 1.37±0.5 PSI
When does Hover Augmentation work?
Below 60 knots, between 13.3° nose up and 4.4° nose down
Dual point combined capacity
36,000 pounds
Generator rating (kVA, V, Hz)
40 kVA (60 kVA Overload), 115/200V, 400Hz
How many fuel nozzles are in the combustion section?
12
At a constant torque setting, an increase of T5 by ___°C equals a ___% power loss.
40°C, 10%
Sideward Flight Limit
35 KIAS
Wheel brake hydraulic pressure (and source)
1,500 psi from Utility System
Q instrument readout deviation
±3%
Airspeed Hold (knots and bank angle)
±5 knots up to 35° bank angle
Only works above 60 knots
RDR ALT Hold
±7’ or 5% of selected altitude, whichever is greater
How many elements do the engine oil pumps have (and what kind are they)?
6 - 5 scavenge, 1 pressure
With heading hold reengaged, when will the computer level the wings?
If within 2° of wings level
AOB Limitation for GW less than or equal to ___k and DA greater than ___’ /Airspeed greater than ___ KIAS
56k, 3k’, 130 KIAS: 45°
Transfer rate of auxiliary tanks to main
45 gpm or approximately 300 pounds per minute
First and Second Stage Hydraulic Reservoir Capacity
0.65 gallon
Airspeed indications are unreliable below what airspeed?
40 knots
Inner Loop Authority
±10%
Nf over speed protection
110±2%
2 FUEL LOW caution light
333±15 pounds (30 minutes of fuel remaining)
Maximum weight on wheels
69,750 pounds
Dual Point Security Strap limits
950±450 pounds
Fuel Boost Pumps normally draw fuel at what psi?
40-60 psi
Number of Stator Vanes in the Compressor
13
T5 peak momentary
900°C
1st fuselage bending mode
3.25 Hz
NATOPS Recommended GCA Speed
115 KIAS
High Pressure Rotor Brake can be engaged below what Nr?
50%
Before securing electrical power, how long must the heater have been off?
10 minutes
1 and #3 tank capacity pressure refueled/gravity refueled
300 gallons (2040 pounds)/304 gallons
Purge cycle time
8.5 minutes
Airspeed and time limit with BIM caution light
80 knots for 90 minutes
Rectifier rating
200 AMP, 28 VDC
Anti-Flapping Restraints go out when?
At 25% Nr
Gear Extended Airspeed Limit
150 KIAS
EAPS Doors Closed Airspeed Limit
150 KIAS
Length of single point cargo pendant
10’
Cargo winch capacity
5,000 pounds
APP light off indicated on the gauge
20%
Without introducing fuel, the starter can drive Ng up to what speed?
26-32%
ACC GB OIL HOT light
> 145°C
Minimum Sink Rate Autorotational Airspeed
85 knots
Hydraulic pressure provided by the Engine Start Pump when starter is depressed
4,000 psi
Supervisory Panel Overvoltage Protection
Activates when greater than 125 volts for more than 1 second
Nr Flat Pitch
104-107%
During forward flight, with an airload on the nose gear door, emergency extension may take from ___ to ___ minutes.
1-2 minutes
Number of IGB chip detectors
1
Inner Loop Rate Response
Unlimited
Allow the APP to cool for ___ minutes to avoid a hot start.
2 minutes
T5 419Continuous/30 minutes/10 minutes
769/810/829°C
APP clutch engagement
92% at 204°C
Outer Loop Rate Response
10% per second
Force required on collective to shear yaw shearpin (breakaway rod)
Yaw breakaway shearpin will shear at 65 lbs with the AFCS servo on and 122 lbs with AFCS servos off.
MGB maximum oil pressure
150 PSI
AOB Limitation for GW greater than ___k
56k: 30°
ENG OIL PRESS LOW
10±3 PSI
The Utility Hydraulic Pump provides what range of pressure?
2,975-3,025 psi (Essentially, 3,000 psi)
APP light off actually occurs at what %?
10%
Main Transmission Rotor Tilt and advantage
5° forward (provides level fuselage at cruise)
Maneuvering Flight Limit
130 KIAS
2 STG PRESS M/R light
<2,000 psi
Main Rotor Diameter
79’
Roll Attitude Hold
±1° up to 45° of bank angle
±2 between 45-60 degree AOB
BAR ALT Hold
±25’ or 1% of engaged altitude, whichever is greater
T5 indication of a post shutdown fire
320°C
APP fuel flow and tank
80-180 Pounds per hour from the No. 2 right
Minimum Ng to introduce fuel
20%
of Engine fire bottles
3
Product in engine fire bottles
Monobromotrifluoromethane (CF3Br)
Nf Limits
Normal Range: 100-105%
Max: 110 (Overspeed 110+-2)
5 second transient/Overspeed: 125%
Peak Overspeed (overhaul required):129
Airspeed Hold - The Pitch Beeper Button Re-References at how many knots per second?
6 knots per second
Number of Centerline Seats
18
Rotor RPM at 100% Nr
179
Overall Aircraft Length
99’ 0.5”
Fire detectors in APP compartment
2
LBA Fully Extended
180 KIAS
Number of NGB chip detectors
1 each
T64-GE-416/416A SHP and Power Turbine Output
4,380 SHP (at 137% Torque) and 14,280 RPM
Landing gear sink rate at Max Weight on Wheels
69,750: 360 feet per minute
Engine unusable oil
0.1 gallons
Trim re-reference rate
5% per second
Power loss per engine with anti-ice on at max HP
3%
AFCS Servos provide how many pounds of force?
The AFCS Servos provide 200 pounds of force (power assist) for cockpit control
Hydraulic system normal pressure range
2,600-3,300 PSI
Landing gear sink rate at or below Design Gross Weight
46.5k: 672 feet per minute
2nd Stage and utility heat exchanger blowers turn off
57±3°C
LBA Fully Retracted
0-60 KIAS
Nose Gearboxes reduce engine rpm for input into the Main Gearbox to ___.
14,280 to 6,323 RPM
MGB OIL PRESS light
14±2 PSI
LBA Rate Response
5.50%
Attitude Warning System Actuation
Above 7° nose up
I believe there is more check that
The Utility Hydraulic Pump operates at how many gpm?
24 gpm
MGB normal oil pressure
50-65 PSI
TGB TAIL GB chip detector oil temp
140±5.5°C
ROTOR BRAKE PRESS
More than 10 psi in the system
Blade spars are pressurized via ___ to ___ psi within a temperature range of ___°C.
Nitrogen, 10 psi, 18-24° C
When is #2 Eng backflow most prevalent?
- Stalled
- @GND idle @ >85KIAS
- @ 100% Nr and port winds in excess of 15 knots.
Max Glide Distance Airspeed
110 KIAS
