Chapter 5 (Limits) Flashcards by Josh Pi

Engine % RPM 1-2 (Np)

12 Second Transient - 105-107%
Transient - 101-105%
Continuous - 95-101%
Transient - 91-95%

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Engine % Torque

Dual:
10 Second Transient - 100-125%
Continuous - 0-100%

Single:
10 Second Transient - 110-135%
Continuous - 0-110%

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Avoid Operations in the ___-___ and ___-___ range. *Except during _______ and _______

20-40
60-90
Start Up and Shutdown

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Main Rotor % RPM R (Power On)

Transient - 101-107%
Continuous - 95-101%
Transient - 91-95%

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Main Rotor % RPM R (Power Off (Autorotation))

Maximum - 110%
Transient - 105-110%
Normal - 90-105%

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TGT

12 Second Transient - 850-886 deg C
Start Abort Limit - 850 deg C
30 Minute Limit - 775-850 deg C
Normal - 0-775 deg C

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Ng% (Gas Producer)

12 Sec Transient - 102-105%
30 Minute Limit - 99-102%
Continuous - 0-99%

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Engine Oil Temperature

30 Minute Limit - 135-150 deg C

Continuous - -50-135 deg C

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Engine Oil Pressure

Continuous 20-100 PSI

*35 PSI minimum @ 90% Ng and above

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Transmission Oil Temperature

Precautionary - 105-140 deg C

Continuous - -50-105 deg C

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Transmission Oil Pressure

Precautionary - 65-130 psi
Continuous - 30-65 psi
Idle & Transient - 20-30 psi

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Engine Starter Limits @ or < 15 deg C

2 Consecutive Starts
3 min Rest Period
2 Consecutive Starts
30 min Rest Period

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Engine Starter Limits >15 to 52 deg C

2 Consecutive Starts

30 Minutes Rest

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Pneumatic Source Inlet Limits (Min & Max)

Minimum = 40 psig & 30 ppm at 149 deg C
Maximum = 50 psig @ 249 deg C

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Engine overspeed check in flight is_______

Prohibited!

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Engine overspeed check on the ground is______.

Authorized by designated personnel only!

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Cross Bleed start shall NOT be attempted unless_______ advisory doesn’t appear and the operating engine must be at____ speed or above and rotor speed at _______

1 or #2 ENG ANTI-ICE ON advisory

90% Ng
100% RPM R

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Maximum capacity for each storage unit is?

125 lbs

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Maximum cargo hook capacity on the UH60 A/L?

8,000 lbs

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Max weight is further limited by cargo floor max capacity of?

300 lbs per square foot

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Max weight for the UH60 with 7 lug wheels is?

<20,500

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Maximum Airspeed for one engine inoperative is?

130 KIAS

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Max Autorotation with gross weight @16,825 or less

150 KIAS

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Max Autorotation with gross weights >16,825

130 KIAS

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Sideward/Rearward flight into the wind, when combined with windspeed, shall not exceed____

45 KTS

One SAS Inoperative Airspeed

170 KIAS

Two SAS Inoperative Airspeed

150 KIAS

Two SAS Inoperative + IMC Airspeed

140 KIAS

One Hydraulic Inoperative Airspeed

170 KIAS

Two Hydraulic Inoperative Airspeed

150 KIAS

Two Hydraulic Inoperative + IMC Airspeed

140 KIAS

Maximum Airspeed for EXTENDING Landing Light?

130 KIAS

Maximum Airspeed for EXTENDED Landing Light

180 KIAS

Maximum Airspeed for EXTENDING Search Light

100 KIAS

Maximum Airspeed for EXTENDED Search Light

180 KIAS

With EIBF installed VNE is limited to _____

184 KIAS

With EIBF and ESSS/CEFS/ERFS installed VNE is limited to _____

162 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

145 KIAS

Gunners window(s) may be fully open up to ____

170 KIAS

Cockpit Doors sliding window will not be ____ or ____ during flight except during ____.

Open Closed Hover

Flight with Cockpit Doors Removed is _______

Prohibited

Stabilator Shall be full down at speeds below___

40 KIAS

Stabilator shall be set at Zero degrees for speeds above ____

40 KIAS

when Manual control of the stabilator is not available Autorotation airspeed shall be limited to _____ at all gross weights

120 KIAS

When manual control of the Stabilator is available, Autorotation airspeed will not exceed _____

120 KIAS

Hovering Turns greater than ____ deg per second are _____.

30 Degrees | Prohibited

intentional maneuvers beyond attitudes of ____ in pitch or over ____ in roll are Prohibited

+/- 30 Degrees | 60 Degrees

simultaneously moving the ENG POWER CONT to _____ or ______ in flight is prohibited.

Idle or Off

what type of Ground taxi is Prohibited?

Rearward

Manual operation of the stabilator in flight is ____ except by _____

Prohibited | Maintenance Test Flights

Prolonged rearward flight and downwind hovering are to be avoided to prevent accumulation of ______ in the Helicopter and ____ to the windows on the _____________

Exhaust Fumes Heat Open Cargo Doors

NOTE: Maneuvers entered from a low power setting may result in _________ of ___% RPM R or higher.

Transient Droop | 5%

To Prevent excess tail rotor system loading avoid_______.

Abrupt full pedal left inputs above 80 KIAS

To Prevent excess tail rotor system loading avoid_______.

Abrupt full pedal left inputs above 80 KIAS

Maneuvering limitations with a sling load are limited to a maximum of _____ angle of bank in forward flight.

30 deg

Side flight is limited by the ____ and is decreased as ___________

Bank angle | Airspeed Decreases

Rearward flight with a sling load is limited to ____ knots

Bank angle shall be limited to ____ when either PRI SERVO PRESS caution light appears

30 deg angle of bank

with a gross weight of less than 16,825, what are my land gear limits on Level Terrain and Slopes?

Level Terrain - 540 FPM | Slopes - 360 FPM

When gross weight is above 16,825 what are my landing gear limits on Level Terrain and Slopes?

Level Terrain - 300 FPM | Slopes - 180

Maximum Forward Touchdown speed is limited to _____ ground speed on Level terrain

60 Knots

Nose up, Right/Left wheel up, Slope Landing Limitations

15 deg, Reduced by 2 for each 5 KTS of wind

Nose Down Slope Landing Limitation.

6 deg

Landing in a Nose downslope condition with a tailwind greater than ____ KTS shall not be conducted.

15 KTS

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

What is required to fly into Trace or Light icing conditions?

1. ) Windshield Anti-ice 2. ) Pitot heat 3. ) Engine Anti-Ice 4. ) Engine Inlet Anti-ice Modulating Valve 5. ) Insulated ambient air sensing tube

Flight into Heavy or severe Icing conditions is ________

Prohibited

Flight into Moderate Icing Conditions?

1. ) Windshield Anti-ice 2. ) Pitot heat 3. ) Engine Anti-Ice 4. ) Engine Inlet Anti-ice Modulating Valve 5. ) Insulated ambient air sensing tube 6. ) Blade Deice Kit

The Windshield Anti-Ice check shall not be done when the FAT is over ______

27 deg C