OPC IFR Questions Flashcards by Dale Wilton

What is the required validity period that a weather forecast must cover for destination and alternate aerodromes?

Not less than 30 minutes before and 30 minutes after the planned ETA

(Isolated Airport - 30 Mins and +60)

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When ATC allocates a waypoint crossing time, what time must the aircraft arrive at that waypoint?

On time or up to 30 seconds early

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What is the minimum obstacle clearance required when circling in a Cat C aircraft

400 Feet

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What is the maximum speed allowed for circling in a Cat C aircraft

180 knots

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What is the maximum speed allowed for a missed approach

240 Knots

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What is the range of final approach speeds for a Cat C aircraft

115 - 160 Knots

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What is the circling radius to be used for a Cat C aircraft

4.2 nm

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What is the circling radius to be used for a Cat C aircraft using Old TERPS Criteria

1.7 nm

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What is the circling radius to be used for a Cat C aircraft for New TERPS criteria

2.7 nm

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What are the requirements for conducting a visual approach by day

Within 30NM of the Aerodrome
Clear of cloud
In sight of ground or water
With a flight visibility not less than 5,000M

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What are the requirements for conducting a visual approach by Night

Established within the circling area
Clear of cloud
In sight of ground or water
Visibility not less than 5000M

within 5 nm aligned with the centreline on PAPI (7 nm if runway is equipped with an ILS)

within 10 nm if estimated on ILS glide path (14 nm in SYDNEY runway 16L and 34L)

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What is the maximum allowable in-flight difference between Captain and First Officer altitude displays for RVSM operations

200 feet

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Do Standby altimeters meet the accuracy requirements for RVSM airspace

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What is the Altimeter tolerance for IFR flight

60 feet on QNH for both altimeters, however if one altimeter is between 60 and 75 feet a re-check can be made at the next destination

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What are the maximum allowable on-the-ground altitude display differences for RVSM flight CL/NG

CL = 40 feet between CAP/FO and 75 feet of field elevation

NG = 50 feet between CAP/FO and 75 feet of field elevation

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What is the maximum allowable dry crosswind component NG/CL

34 / 35

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What is the maximum take-off and landing tailwind component

10 Knots

(Freighter 15 knots)

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What is the severe turbulent air penetration speed CL/NG

Climb and descent
CL = 280 knots or Mach 0.73

(264 knots or Mach 0.65 freighter)

NG = 280 knots or Mach 0.76

During Cruise use N1 values

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Can you operate HF radios during refuelling

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Can aileron trim be used with the autopilot engaged

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For single channel autopilot operations during approach at what height is the autopilot required to be disengaged

50 feet

Is reverse thrust allowed to be selected intentionally in flight

What is the maximum altitude allowed with APU bleed + electrical loads

10000 feet

What is the maximum altitude allowed with APU bleed load

17000 feet

What is the maximum altitude allowed with APU electrical load CL/NG

CL = 35000 feet NG = 41000 feet

What is the maximum altitude allowed with flaps extended

20000 feet

During icing conditions inflight can flaps be used in a holding pattern

What is the time window allowed to remain compliant with an allocated COBT

Arrivals SYD, BNE, MEL, PER -5min to +15 min Departure Per -5min to +10min

What are the maximum and minimum glideslope angles for auto-land

+ 3.25 degrees and +2.5 degrees.

Which flap settings are allowed for Autoland

Autoland may only be used with flaps 30 or 40 and both engines operating

What is the maximum fuel temperature

49°C.

What is the Maximum runway slope allowed

+/-2%

Maximum Takeoff and Landing Altitude

8400 feet

Define Icing Conditions

When OAT (ground) or TAT (inflight) is 10°C or below AND *visible moisture of 1600 m or less or *standing water, ice or snow on ramp, taxiways or runways

What are the maximum Holding Speeds

Holding altitude 14000' or below 230 KIAS Holding altitude above 14000' to 20000' 240 KIAS Holding altitude above 20000' to 34000' 265 KIAS

State the recency limitations for the conduct of a circling approach under the IFR

Passed the flight test for the rating which included a circling approach in the previous 12 months; or The most recent IPC included a circling approach CASR (61.860 (3))

State the recency limitations for the conduct of a flight under the IFR in a type rated aircraft

1 IAP in the particular category in the previous 90 days CASR (61.870 (3))

What are the recency requirements for 2D, 3D, CDI and azimuth approaches

At least 1 approach flown in the previous 90 days for each type CASR (61.870

What is the obstacle clearance in a missed approach

100ft @ 2.5% from MAPT or DA JEPP (TERM AU-23 4.10.1 NOTE 2)

When does a missed approach finish

When passing through the MAP "climb to" height specified for the approach

How is a missed approach flown from visual circling

An initial climbing turn toward the landing runway is made to overhead the airport, where the missed approach track is intercepted of the instrument approach just flown

What is the circling area and obstacle clearance for a CAT D

CAT D - 5.28NM, 400 feet

What is the definition of "established" in an IAP for all Navaids

ILS, VOR and GNSS - Half scale deflection NDB - ±5° of required bearing DME - ±2NM of the DME arc

Can a Runway Visibility (RV) Assessment be used as a substitute for RVR observations

Only if: - for CAT I approaches visibility is greater than 800m - For low visibility take-offs, visibility is greater than 350m

What is the terrain clearance guaranteed by the 10 and 25nm MSA

1000 feet

What is the normal gradient applied when designing an IAP, and what is the rule of thumb to calculate RoD on an IAP

3° = 5% (5 x GS = ROD) Or half GS and add a zero

What are the flight tolerances of the ILS/GLS

- Maximum half scale deflection on final approach course and glide slope before the FAP - Maximum full scale deflection on final approach course and glide slope after FAP

What are the requirements for changing the DA due temperature

If the temperature is less than ISA -15°C, correction must be added in accordance with correction charts For GNSS approaches, no correction necessary if operating within the temperature limits of the chart

What is the minimum visibility if HIAL is not available

1.5 Km

If HIAL is installed but not serviceable, what must the visibility minima be adjusted by for a LOC approach

Add 900 metres

What is the time window allowed to remain compliant with COBT

Arrival: SYD, BNE, MEL, PER -5 to +15 mins Departure PER: -5 to +10 mins