Limitations Flashcards by Russ Stockwell

Maximum fuel imbalance?

55,000 lbs or less : 2000 lbs max imbalance 55,000 lbs to 60,500 : AFM figure 1-460,400 lbs : 400 lbs max imbalance

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Runway slope limitation?

+/- 2%

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What is the power source for the Emergency Exit Lights?

Emergency Batteries

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What is the G450 Maximum Useable Fuel Weight?

29,500 lbs

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What is the minimum taxi strip width for a 180º turn (based on maximum nose wheel deflection of 82º)?

55’3”

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Maximum runway slope approved for takeoff and landing operations is:

+/- 2% uphill or dowhill

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What is the G450 Maximum Airport Elevation?

15,000’ MSL

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Landing Lights operation time limit while on the ground?

5 Minutes

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Maximum Weights of G450 *Ramp *Takeoff *Zero Fuel *Landing

Ramp - 75,000 lbs (ASC16) Takeoff - 74,600 lbs (ASC16) Zero Fuel - 49,000 lbs Landing - 66,000 lbs

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When is the use of speed brakes prohibited?

Flaps 39° or Gear Down In Flight

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Tire Speed Limit

195.5 kts ground speed

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Vlo / Mlo Max speed for Landing Gear extension

225 / 0.70 MT

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Vle / Mle Maximum speed for gear extended in flight

250 KCAS / 0.70 MT

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Maximum altitude for: *Flaps 10° or 20° *Flaps 39° *Gear extended/operation

Flaps 10° or 20° - 25,000’ Flaps 39° - 20,000’ Gear - 20,000’

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The APU is guaranteed to start below what altitude?

37,000 feet

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What is the max operating altitude of the APU?

37,000 feet

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What is the RNP value for *APPROACH *TERMINAL *ENROUTE?

APPROACH - 0.3 TERMINAL - 1.0 ENROUTE - 2.0 or 10

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How many lights / items appear during an APU fire test?

-8 total >2 overhead >4 master caution panel >2 CAS

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Which exterior power source has priority? AC or DC?

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E-Batts (when armed) will activate when:?

An ESS DC bus drops below 20 volts

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How many Fault Warning Computers (FWC) are installed on the G450?

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What is the function of the INHIBIT switch on the Master Warning panel?

Inhibit audible tones for Amber and Blue CAS messages except: >CAT II Invalid >Lateral Coupled Data Invalid >Vertical Coupled Data Invalid >LPV Unavailable

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When selected for takeoff, the INHIBIT function is active up to what altitude?

400 feet AGL

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What may help and in-flight IRS alignment occur faster?

-Make turns -Slow down and Speed up

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What does ON BATT in the IRS switch mean?

- The IRS is NOT using its primary electrical power source and is being powered by the Emergency Battery system.

How many GPS components are on the G450?

How many MAU's are installed? How many power sources for each MAU?

3 MAU's 4 Power sources each

What are the power sources for each DU?

DU 1 - Left ESS DU 2 - L Main / L ESS DU 3 - R Main / R ESS DU 4 - R ESS

If DU2 and DU3 are failed, how do you change DU4 to a MAP display?

- Push 2/3 button for 3 seconds on either Display Controller? - Push MAP button on copilot Display Controller.

What value should be lower for normal RNP operation, RNP or EPU?

EPU should always be higher than RNP for normal operations

When will the APPROACH label appear on the HSI during FMS operation?

2 NM prior to the Final Approach Fix (FAF)

When is RNP in the Terminal mode?

- Within 30 miles of departure or arrival airport, OR - On departure to the last way-point associated with a SID, OR - On arrival at the first way-point associated with a STAR

What items are selected for display by default on power up on MAP?

- TERRAIN - TRAFFIC - WEATHER RADAR - OBSTACLES

With auto throttles engaged on takeoff, HOLD on the PFD appears at what speed? HOLD memains engaged until what altitude on takeoff?

60 knots 400 feet

When will auto speeds for performance disappear after takeoff?

- When a flap position is changed OR, - When a new vertical mode (FLCH, VNAV) is selected

If the HEADING mode is selected on the Guidance Panel. what annunciation will appear on the bottom of the VSD?

- TRACK - Terrain display is located under the TRACK LINE

What is the range of operation of the RADAR ALTIMETER?

-20 to 2500 feet AGL

At what RADAR ALTITUDE will the GROUND REFERENCE TAPE appear on the PFD altimeter?

600 feet AGL

What is the power logic for auto throttles operation when using FLCH with auto throttles engaged?

- If next altitude is \> 6000 feet, auto throttles use CLB EPR - If next altitude is \< 6000 feet, auto throttles use less than CLB EPR

What is the maximum demonstrated altitude loss for a coupled go around?

60 feet

Below what altitude will the TCAS system operate in TA mode only?

500 feet

When is the WINDSHEAR warning system active?

-On Takeoff from Ground to 1,500 feet AGL -On Approach from 1,500 feet AGL to 10 feet AGL -On Missed Approach to 1,500 feet AGL

What GPWS warnings are INHIBITED with the GPWS ORDE switch on the Master Warning Panel?

All EGPWS audio warnings except WINDSHEAR

What is inhibited with the RAD ALT switch on the Master Warning Panel?

RADIO ALTITUDE audio callouts

When do limitations require selection of the TERRAIN INHIBIT button?

- Within 15 NM of a landing airport when: \>The airport has no publishes instrument approach \>The longest runway is less than 3,500 ft \>The airport is not in the database \>QFE procedures are used for approach and landing

What is the heading source for the SFD?

Magnetometer

What are the heading sources for the EBDI? What NAV radios send NAV information to the EBDI?

- Heading \>IRS1, IRS2, SFD STBY HDG - NAV \>NAV 1 and 2, ADF 1 and 2

What are the weather radar ground operating limitations?

- Not within 49 feet of personal - DO NOT operate when refueling - DO NOT operate when within 300 feet of other refueling operations

How do you activate the weather radar on the ground?

Press the STAB button 4 times in 3 seconds

The HMG provides:

- AC power to the AUX TRU and Standby AC Buses - Rated at 5 KVA, 115 volt 400 HZ, 3 Phase AC - It is powered by the left hydraulic system

What is the normal AC power source for the AUX TRU and ESS AC Bus?

L Main AC Bus

What is the"dead bus" logic for the AUX TRU?

ESS before MAINLEFT side before RIGHT side

What is the purpose of the E INVERTER?

Provides AC power to the ESS AC bus (if the bus loses power)

The BATTERY switches illuminate ON when the MAIN BATTERIES are:

- Powering the ESS buses (batteries are being used) - When starting the APU - When AUX pump is operating

When do you push the AC/DC RESET switch?

- When it's illuminated - CAS message / Checklist says to push it - L/R AC RESET CAS message - L/R DC RESET CAS message - Amber CAS EA 11

When ambient temperature is greater than 110°F / 43.5°C, the integrated drive generator (IDG) is limited to:?

45%

If you lose L MAIN AC power, what happens automatically?

- AUX TRU transfers to R MAIN AC bus and powers L ESS DC bus - ESS AC bus tranfers to R MAIN AC bus

What 2 sources can power the ESS DC bus simultaneously?

- L/R MAIN Batteries - AUX TRU (when powered by the HMG)

When will get a "Break Power Transfer"?

- Engine failure - Generator failure - EXT power connected with APU providing power

What is the function of BUS TIE ISLN SWITCH?

- Allows you to isolate buses - Allows alternate power sources to power failed bus side

On the ground, the ground service bus may be powered by:

- Right MAIN BATTERY or - Right MAIN DC bus - EXT DC

What will turn of the Ground Service Bus automatically?

- Main cabin door closed - Forward external switch panel access door closed - Tail compartment door closed - NOTE: All doors must be closed for automatic shutoff

What do the Avionics E-Batts power?

\* Clocks \* STBY Instruments (SFD/EBDI) \* Gear handle and indicator \* MCDU's 1 & 3 \* Captain's audio panel

When the aircraft operates on emergency batteries the crew can only tune:

\* Comm 1 \* Nav 1 \* ATC 1 on MCDU 3

After APU start and selecting the APU Bleed Air, when does the Crossblled Isolation Valve automatically open?

90 seconds after 95% RPM

What is the difference between Essential and Non Essential APU modes?

\* Essential - Air \* Non Essential - Ground \* Not all AUTO shutdowns are active in Essential Mode

The APU is capable of driving the generator when it has reached:

95% RPM for at least 4 seconds

If the APU is started in the air, what mode is the APU in? How long will it remain in that mode after landing?

Essential Mode 15 Minutes

What does APU ESSENTIAL CAS message mean?

\* APU is operating i Essential Mode \* A Non Essential Shutdown signal is sensed \* The APU will continue operating

What are the APU starter limitations?

\* 3 start attempts \* 1 hour cool down \*\*For DC exteral starts a 15 minute cool down is required between start attempts

APU generator loading is limited to \_\_% between altitudes of \_\_\_\_\_feet and _____ feet at speeds greater than __ Mach.

85% between altitudes of 30,000 feet and 37,000 feet and speeds greater than 0.85 Mach

FADEC has how many power channels?

2 (A & B)

What are the 4 ways to open the Bleed Air Isolation Valve?

\* Start Master \* Crank Master \* APU Bleed Air switch selected on \* Manually select to Isolation Valve ON