IFR Theory Flashcards
Max speed for holding up to FL140 (CAT C)
230kts
Max speed for holding from FL140 to FL200
240kts
Max speed for holding above FL200
265kts
Max time outbound for a hold up to FL140
1 min or time limit specified on the chart
Max time outbound for a hold above FL140
1.5 min or time limit specified on the chart
Rate of turn allowed in a holding pattern
25° or rate one (whichever is the less)
What does the “DME Limit” mean in regards to holding patterns?
The DME distance at which to start turning onto the reciprocal track
What do you need in order to start a DME/GNSS Arrival?
- Database card must be current
- The VOR/NDB must not be capable of modification by the crew
- RAIM must be available
- The VOR/NDB must be used for lateral guidance
If RAIM is lost during a DME/GNSS Arrival, what must the pilot do?
Conduct a missed approach
If a DME slope takes a pilot OCTA, does he need to get clearance to re-enter CTA?
Yes
What does the term “cancellation of published speed restrictions” mean?
Cancellation of all speeds published on a SID/STAR
When will noise abatement not be a determining factor on RWY selection?
- When there’s low cloud, TS and poor visibility
- For a DRY RWY… if the XW is >20kts and the TW is >5kts
- For a WET RWY… if the XW is >20kts and there is a TW component
- When wind shear has been reported
- If safety is compromised for a particular aircraft
When can an aircraft descend below the LSALT/MSA?
- When visual by day
- When descending via the DME/GNSS steps
- When being cleared to fly an MVA
- When in the circling area
- When flying an instrument approach
CAT C Vat
121-140kts
CAT C Initial and Intermediate
160-240kts
CAT C Final
115-160kts
CAT C Circling
180kts
CAT C Missed Approach
240kts
What does the DA need to be adjusted to, in order to account for pressure error?
PEC for the aircraft type or +50ft to the DA
If there is a discrepancy b/w the altimeter and the final check height published on an ILS chart, what must the pilot do?
Carry out a missed approach
If the LOC or GS indicates a full-scale deflection at any time during the approach, what must the pilot do?
Carry out a missed approach
When is the ILS critical and sensitive areas NOT protected?
When cloud is >600ft and visibility >2000m
When is ONLY the ILS critical area protected, and what are the conditions?
- When cloud is <600ft but >CAT 1 minimums, and visibility is <2000m but >CAT 1 minimums
- The critical area is protected except…
- When a preceding aircraft enters the area while LDG or vacating the RWY
- When the aircraft has not reached the OM or 4nm yet
When is BOTH the ILS critical and sensitive areas protected, and what are the conditions?
- When cloud and visibility is
When is a LOC critical and sensitive areas protected during a LOC T/O and what are the conditions?
- When visibility is <550m
2. The critical and sensitive areas are both protected until the aircraft has completed its T/O
What is the minimum obstacle clearance gradient for a missed approach?
2.5% or 152ft/min
When can an aircraft commence an approach w/o entering a holding pattern?
- In CTA… when an aircraft is cleared for an approach
- OCTA, when…
- The reversal procedure entry requirements are satisfied.
- The DME arc procedure entry requirements are satisfied
- When the aircraft is within 30° of the inbound course or reversal
- For an RNAV… when the aircraft is within the capture regions
(90° either side of the outer IAP fixes and 70° either side of the middle IAP fix for a x3 IAP Approach)
(90° either side of the out IAP fix and 70°/110° either side of the middle IAP for a x2 IAP Approach)
What does “established on track” mean?
- Within half-scale for an ILS, VOR and GNSS.
- Within 5° for an NDB
- Within 2nm for a DME Arc
What is the maximum vertical speed allowed after crossing the FAF
1000ft/min
Describe the 45°/180° procedure turn…
45° turn away from the outbound track for 1min 15secs (CAT C), followed by an 180° in the opposite direction to intercept the inbound track
Describe the 80°/260° procedure turn…
80° turn away from the outbound track, immediately followed by a 260° turn in the opposite direction to intercept the inbound track
Describe the base turn…
A specified outbound track for a specified time/DME distance, followed by a turn to intercept the inbound track
When must a missed approach be executed…
- When after the FAF, the aircraft is not maintained within the appropriate tolerances
- Below the MSA, the NAVAID becomes suspect and/or fails
- You’re not visual by the DA or MAPT
- A straight-in LDG cannot be performed unless you can circle under the circling minima
- Visual reference is lost while circling
If you don’t get visual by the MDA height, do you have to track to the MAPT before conducting the missed approach? What are the conditions of this?
Yes, however you can initiate a climb prior to reaching the MAPT
If you have to conduct a missed approach while circling… what must you do?
Make an initial climbing turn towards the LDG RWY and make sure that you are overhead the airport before conducting the missed approach
If you lose RAIM after passing the IAF of a GNSS approach, what must you do?
Conduct a missed approach
If RAIM comes back while you are in the missed approach part of a GNSS approach, may you use your GNSS equipment for missed approach guidance?
Yes
If RAIM is still lost while you are in a missed approach, what must you do?
Use an alternative means of guidance or dead-reckon the missed approach
When can you descend below the MDA whilst circling?
- When within the circling area
- When visibility is > the circling minimums on the approach chart
- When you can maintain visual contact with the RWY environment (ie. threshold lighting, approach lighting or RWY edge lighting)
- By night or day… when you are in a position where you can maintain a continuous normal descent to the threshold whilst maintaining minimum obstacle clearance until you are aligned with the RWY
- By day only… when you are able to maintain the minimum obstacle clearance within the circling area until you are aligned with the RWY
Minimum obstacle clearance CAT C and D
400ft
Circling area CAT C
4.2nm
When can you descend below the straight-in MDA/DA?
- When you are visual
- When the cloud base and visibility is not < the minimum for the MDA/DA
- When you are in a position where you can descend safely to the threshold
When can you circle in a “no circling” area?
Visual by day
When can you conduct a visual approach by day?
Not below the MSA/LSALT, until you are…
- Clear of cloud
- In sight of ground and water
- Visibility not <5000m
- Within 30nm
When can you conduct a visual approach by night?
Not below the MSA/LSALT, until you are…
- Clear of cloud
- In sight of ground and water
- Visibility not <5000m
- Within the circling area or…
- 5nm (7nm with ILS RWY) aligned with the centreline not below “on-slope” on a T-VASIS or PAPI
- 10nm (14nm for 16L and 34L at Mascot) aligned with the centreline not below full-scale on an ILS GP
What are the qualifying requirements for a multi-engine aeroplane in regards to the T/O Minima?
The aeroplane is…
- Two-pilot operated
- Single-pilot jet
- Single-pilot propellor aeroplane with auto-feather
For an MTOW >5700kg…
1. The aeroplane can meet the obstacle clearance requirements of CAO 20.7.1B
For a two-pilot operation, each pilot is…
- Endorsed on type
- Multi-Crew trained on type
- Multi-Crew proficiency checked within the previous 13 months
- Instrument rated
What is the T/O minima for a QUALIFYING multi-engine aeroplane?
- Ceiling of 0ft
- Visibility of 550m in the following conditions…
- RWY has edge lighting not >60m between each other + centreline lighting or centreline markings
- The STBY switchover capability of the RWY lighting is 1 second or less where centreline lighting is not provided
- At a CTAF, the T/O is by day only and it must be at a CTAF where you need to have radios - Visibility of 800m if the above requirements cannot be met
What is the T/O minima for a NON QUALIFYING multi-engine aeroplane?
- Ceiling of 300ft
2. Visibility of 2000m
What are the conditions of the T/O Minima?
- If you need to land at the departure airport due to an engine failure, you need to be able to land via an instrument or visual approach
- If engine failure happens after V1, you need terrain clearance until the enroute LSALT or departure airport MSA
- If you can’t land at the departure airport, you need enough performance and fuel to land at an alternate
What is the Landing Minima for an airport w/o an Instrument Approach chart?
- IFR by day… visual approach requirements
2. IFR by night… VMC from LSALT within 3nm
What happens to the LDG minima for a LOC approach if HIAL is not available?
Visibility must be increased by 900m
When would you need a minimum visibility of 1500m for an approach which would otherwise have CAT 1 minima?
When HIAL is not available
When would you NOT need a minimum visibility of 1200m for an approach which would otherwise have CAT 1 minima?
- If the aeroplane can be flown to the CAT 1 DA using an FD or autopilot with either LOC/GS or GLS
- The aeroplane has got a failure warning system for the AH and DG
- HIAL is available
When would you need a minimum visibility of 800m for an approach which would otherwise have CAT 1 minima?
If RVR information in the threshold zone is not available
Prior to passing the IAF, what type of QNH must you set?
- Actual airport QNH
- Aerodrome forecast (TAF) QNH
- Forecast area QNH
If using a FORECAST TERMINAL QNH, what must be done to the ceiling minima?
It must be increased by 100ft
If using a FORECAST AREA QNH, what must be done to the ceiling minima?
It must be increased by 150ft
Which aircraft can use special alternate minima?
Aircraft with dual ILS/VOR capability… duplicated LOC/GP/Marker/VOR receivers
When will special alternate minima not be available?
- When METAR/SPECI or TAFs are not available
2. When an otherwise controlled airport is not controlled
What priority will ATC place aircraft when it comes to aircraft wanting to land ASAP?
- Aircraft in an emergency including hijacking
- A multi-engined aircraft which has suffered an engine failure
- Aircraft with a radio failure
- Aircraft which has declared a mercy flight
- Aircraft undergoing SAR, MEDIVAC or Fire and Flood Relief Operations
- Aircraft operating under “POLAIR RED” engaged in operations where life is at risk
- Aircraft involved in transporting heads of state
- State aircraft special requirements where clearance has been pre-arranged
What are the vertical boundaries of a CTAF?
- SFC to 5000ft
- SFC to LL or CTA if 8500ft or less
- SFC to a nominated level
What do RA1, RA2 and RA3 mean when talking about Restricted Areas?
RA1: Pilots can plan through and can expect clearance through the RA
RA2: Pilots can’t plan through the RA unless on a route specified in the “Enroute” section of the Jepps or under agreement with the Armed Forces. May still not get a clearance through the RA
RA3: Pilots cannot plan through and will not get clearance through the RA