Question 12-1 : What is the meaning of the abbreviation oca ? [ Theoretical lift off ]

Question 12-2 : For a non precision approach procedure what will be produced when an additional margin is added to the och when considering the effects of operational factors ?

The minimum descent height.

Icao doc 8168chapter 1 definitionsdecision altitude da or decision height dh a specified altitude or height in the precision approach or approach with vertical guidance at which a missed approach must be initiated if the required visual reference to continue the approach has not been establishedminimum descent altitude mda or minimum descent height mdh a specified altitude or height in a nonprecision approach or circling approach below which descent must not be made without the required visual reference circling approach visual minimum descent altitude or height mda mdh non precision approach minimum descent altitude or height mda mdh precision approach decision altitude or height da dh tip for this question question asks 'height' och there is only one answer with height => mdh

Question 12-3 : In an instrument approach procedure what is the name of the segment connecting the initial and final segments ?

Intermediate segment.

Refer to figure icao doc 8168 arrival segment a standard instrument arrival star route permits transition from the en route phase to the approach phase when necessary or where an operational advantage is obtained arrival routes from the en route phase to a fix or facility used in the procedure are publishedinitial approach segment that segment of an instrument approach procedure between the initial approach fix and the intermediate fix or where applicable the final approach fix or pointintermediate approach segment that segment of an instrument approach procedure between either the intermediate fix and the final approach fix or point or between the end of a reversal racetrack or dead reckoning track procedure and the final approach fix or point as appropriatefinal approach segment that segment of an instrument approach procedure in which alignment and descent for landing are accomplished

Question 12-4 : According to icao doc 8168 pans ops what is the minimum obstacle clearance provided by the minimum sector altitude msa ?

1000 ft.

Icao doc 8168chapter 1 definitionsminimum sector altitude the lowest altitude which may be used which will provide a minimum clearance of 300 m 1000 ft above all objects located in an area contained within a sector of a circle of 46 km 25 nm radius centred on a radio aid to navigation

Question 12-5 : In instrument approach procedures the mapt is the… ?

Latest point at which the missed approach procedure must be initiated.

Icao doc 8168chapter 1 definitionsmissed approach point mapt that point in an instrument approach procedure at or before which the prescribed missed approach procedure must be initiated in order to ensure that the minimum obstacle clearance is not infringedchapter 6 missed approach segment615 the mapt in a procedure may be defined by a the point of intersection of an electronic glide path with the applicable dah in apv or precision approaches orb a navigation facility a fix or a specified distance from the final approach fix faf in non precision approaches

Question 12-6 : In an instrument approach the intermediate fix if is the… ?

End of the initial approach segment.

Refer to figuresegments of instrument approach1 an arrival segment is the phase during which the aircraft transits from the en route phase to the approach phase the arrival segment starts at the last en route point and ends at the initial approach fix iaf when a standard instrument arrival star is used it will provide transition from the en route phase to the approach phase the initial approach fix iaf marks the end point of the star2 the next phase of an approach procedure is the initial approach segment the initial approach segment is the segment of an instrument approach procedure executed between the initial approach fix iaf and the intermediate fix if during this segment aircraft speed and configuration will depend on the distance from the aerodrome and the descent required3 during the next phase the intermediate approach segment the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach it begins at the if and ends at the faf or fap as applicable the obstacle clearance requirement reduces to 150 m 492 ft from 300 m 984 ft in the primary area4 the final approach segment is the phase during which alignment and descent for landing are made in the case of a precision approach the final approach segment will begin at the final approach point fap rather than a fix faf for non precision approaches the fap is a point on the final approach track where the intermediate approach altitudeheight intercepts the nominal glide path5 the last phase of the approach procedure is the missed approach segment the purpose of the missed approach segment is to protect the aircraft from obstacles

Question 12-7 : What is the preferred ils glide path for a precision approach ?

3 degrees.

Icao doc 816817 descent gradient172 adequate space for descent is provided by establishing a maximum allowable descent gradient for each segment of the procedure the minimumoptimum descent gradientangle in the final approach of a procedure with faf is 52 per cent30° 52 mkm 318 ftnm where a steeper descent gradient is necessary the maximum permissible is 65 per cent37° 65 mkm 395 ftnm for category a and b aircraft 61 per cent35° 61 mkm 370 ftnm for category c d and e aircraft and 10 per cent 57° for category h for procedures with vor or ndb on aerodrome and no faf rates of descent in the final approach phase are given in table i 4 1 3 in the case of a precision approach the operationally preferred glide path angle is 30° as specified in annex 10 volume i an ils glide pathmls elevation angle in excess of 30° is used only where alternate means available to satisfy obstacle clearance requirements are impracticalsummary 3° or 52% minimumoptimum37° or 65% maximum cat a & b aircraft 35° or 61% maximum cat c d & e aircraft 57° or 10% cat h aircraft

Question 12-8 : The intermediate approach segment is the segment during which the aircraft ?

Speed and configuration should be adjusted to prepare the aircraft for final approach.

Icao doc 8168chapter 4 intermediate approach segment411 purposethis is the segment during which the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach for this reason the descent gradient is kept as shallow as possiblechapter 5 final approach segment511 purposethis is the segment in which alignment and descent for landing are made final approach may be made to a runway for a straight in landing or to an aerodrome for a visual manoeuvrenote • intermediate approach segment => speed and configuration should be adjusted• final approach segment => alignment and descent for landing are made

Question 12-9 : What is the purpose of the final approach segment ?

For aircraft alignment and descent for landing.

Icao doc 8168chapter 4 intermediate approach segment411 purposethis is the segment during which the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach for this reason the descent gradient is kept as shallow as possiblechapter 5 final approach segment511 purposethis is the segment in which alignment and descent for landing are made final approach may be made to a runway for a straight in landing or to an aerodrome for a visual manoeuvrenote • intermediate approach segment => speed and configuration should be adjusted• final approach segment => alignment and descent for landing are made

Question 12-10 : In a precision approach ils the glide path interception generally occurs at heights above runway elevation between… ?

300 m 1000 ft and 900 m 3000 ft .

Icao doc 816854 precision approach542 final approach length5421 the intermediate approach altitudeheight generally intercepts the glide pathmls elevation angle at heights from 300 m 1000 ft to 900 m 3000 ft above runway elevation in this case for a 3° glide path interception occurs between 6 km 3 nm and 19 km 10 nm from the threshold

Question 12-11 : The bisba3y standard instrument arrival star ends at the lesba waypoint – lesba is the ?

Iaf.

Refer to figure segments of instrument approach1 an arrival segment is the phase during which the aircraft transits from the en route phase to the approach phase the arrival segment starts at the last en route point and ends at the initial approach fix iaf when a standard instrument arrival star is used it will provide transition from the en route phase to the approach phase the initial approach fix iaf marks the end point of the star2 the next phase of an approach procedure is the initial approach segment the initial approach segment is the segment of an instrument approach procedure executed between the initial approach fix iaf and the intermediate fix if during this segment aircraft speed and configuration will depend on the distance from the aerodrome and the descent required3 during the next phase the intermediate approach segment the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach it begins at the if and ends at the faf or fap as applicable the obstacle clearance requirement reduces to 150 m 492 ft from 300 m 984 ft in the primary area4 the final approach segment is the phase during which alignment and descent for landing are made in the case of a precision approach the final approach segment will begin at the final approach point fap rather than a fix faf for non precision approaches the fap is a point on the final approach track where the intermediate approach altitudeheight intercepts the nominal glide path5 the last phase of the approach procedure is the missed approach segment the purpose of the missed approach segment is to protect the aircraft from obstacles

Question 12-12 : In an ils approach the point on the final approach track where the intermediate approach altitude intercepts the glide path is called the… ?

Fap.

Refer to figure segments of instrument approach1 an arrival segment is the phase during which the aircraft transits from the en route phase to the approach phase the arrival segment starts at the last en route point and ends at the initial approach fix iaf when a standard instrument arrival star is used it will provide transition from the en route phase to the approach phase the initial approach fix iaf marks the end point of the star2 the next phase of an approach procedure is the initial approach segment the initial approach segment is the segment of an instrument approach procedure executed between the initial approach fix iaf and the intermediate fix if during this segment aircraft speed and configuration will depend on the distance from the aerodrome and the descent required3 during the next phase the intermediate approach segment the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach it begins at the if and ends at the faf or fap as applicable the obstacle clearance requirement reduces to 150 m 492 ft from 300 m 984 ft in the primary area4 the final approach segment is the phase during which alignment and descent for landing are made in the case of a precision approach the final approach segment will begin at the final approach point fap rather than a fix faf for non precision approaches the fap is a point on the final approach track where the intermediate approach altitudeheight intercepts the nominal glide path5 the last phase of the approach procedure is the missed approach segment the purpose of the missed approach segment is to protect the aircraft from obstacles

Question 12-13 : You are flying an ils approach in imc conditions when the glide path gp signal is lost what will you do ?

If time permits revert to the published loc approach procedure or go around.

Icao doc 8168 chapter 5 final approach segment5434 in the event of loss of glide pathmls elevation angle guidance during the approach the procedure becomes a non precision approach the ocah and associated procedure published for the glide pathmls elevation angle inoperative case will then applynote please bear in mind that the pilot can initiate a go around during the procedure whenever heshe thinks it is necessary the above regulation offers the opportunity to continue the approach as a npa but it is still up to the pilot what heshe decides to do

Question 12-14 : Approach procedures – final approach segment – in a precision approach ils the final approach segment begins at the… ?

Fap.

Refer to figure segments of instrument approach1 an arrival segment is the phase during which the aircraft transits from the en route phase to the approach phase the arrival segment starts at the last en route point and ends at the initial approach fix iaf when a standard instrument arrival star is used it will provide transition from the en route phase to the approach phase the initial approach fix iaf marks the end point of the star2 the next phase of an approach procedure is the initial approach segment the initial approach segment is the segment of an instrument approach procedure executed between the initial approach fix iaf and the intermediate fix if during this segment aircraft speed and configuration will depend on the distance from the aerodrome and the descent required3 during the next phase the intermediate approach segment the aircraft speed and configuration should be adjusted to prepare the aircraft for final approach it begins at the if and ends at the faf or fap as applicable the obstacle clearance requirement reduces to 150 m 492 ft from 300 m 984 ft in the primary area4 the final approach segment is the phase during which alignment and descent for landing are made in the case of a precision approach the final approach segment will begin at the final approach point fap rather than a fix faf for non precision approaches the fap is a point on the final approach track where the intermediate approach altitudeheight intercepts the nominal glide path5 the last phase of the approach procedure is the missed approach segment the purpose of the missed approach segment is to protect the aircraft from obstacles

Question 12-15 : What is the main purpose of the missed approach procedure ?

To provide obstacle protection throughout the manoeuvre.

Icao doc 8168chapter 6 missed approach segment612 purposeonly one missed approach procedure is established for each instrument approach procedure it is designed to provide protection from obstacles throughout the missed approach manoeuvre it specifies a point where the missed approach begins and a point or an altitudeheight where it ends

Question 12-16 : In a precision approach the missed approach point mapt may be defined by… ?

The intersection of the electronic glide path with the applicable dah.

Refer to figure icao doc 8168 chapter 1 definitionsmissed approach point mapt that point in an instrument approach procedure at or before which the prescribed missed approach procedure must be initiated in order to ensure that the minimum obstacle clearance is not infringedchapter 6 missed approach segment615 the mapt in a procedure may be defined by a the point of intersection of an electronic glide path with the applicable dah in apv or precision approaches or b a navigation facility a fix or a specified distance from the final approach fix faf in non precision approaches

Question 12-17 : You are flying an ils cat i instrument approach and upon reaching the mapt you cannot establish the required visual references – what should you do ?

Immediately initiate the missed approach procedure.

Icao doc 8168chapter 6 missed approach segment614 it is expected that the pilot will fly the missed approach procedure as published if a missed approach is initiated before arriving at the missed approach point mapt the pilot will normally proceed to the mapt or to the middle marker fix or specified dme distance for precision approach procedures and then follow the missed approach procedure in order to remain within the protected airspace616 if upon reaching the mapt the required visual reference is not established the procedure requires that a missed approach be initiated at once in order to maintain protection from obstaclessummary if the missed approach is initiated before arriving to the mapt => proceed to the mapt and then follow the missed approach procedure if upon reaching the mapt required visual reference is not established => immediately initiate the missed approach procedure

Question 12-18 : If a missed approach is initiated prior to reaching the mapt at what altitudeheight shall the aircraft overfly the mapt ?

Question 12-19 : The procedure describing the visual phase following an instrument approach bringing an aircraft into position for the landing on a runway different from the one for a straight in approach is called… ?

Visual manoeuvring – circling.

Icao doc 8168chapter 7 visual manoeuvring circling area711 visual manoeuvring circling is the term used to describe the phase of flight after an instrument approach has been completed it brings the aircraft into position for landing on a runway which is not suitably located for straight in approach ie one where the criteria for alignment or descent gradient cannot be met

Question 12-20 : For which icao aircraft categories is the obstacle clearance altitudeheight within an established visual manoeuvring circling area determined ?

Question 12-21 : In a circling approach how is the pilot expected to behave after initial visual contact with the runway has been established ?

Continue the circling at mdah keeping the runway environment in sight.

Icao doc 8168chapter 7 visual manoeuvring circling area72 visual flight manoeuvre721 a circling approach is a visual flight manoeuvre each circling situation is different because of variables such as runway layout final approach track wind velocity and meteorological conditions therefore there can be no single procedure designed that will cater for conducting a circling approach in every situation722 after initial visual contact the basic assumption is that the runway environment should be kept in sight while at minimum descent altitudeheight mdah for circling the runway environment includes features such as the runway threshold or approach lighting aids or other markings identifiable with the runway

Question 12-22 : When flying a holding pattern with the outbound leg length based on dme distance the outbound leg terminates… ?

As soon as the limiting dme distance is reached.

Icao doc 8168chapter 1 holding criteria134 start of outbound timingoutbound timing begins over or abeam the fix whichever occurs later if the abeam position cannot be determined start timing when the turn to outbound is completed135 outbound leg length based on a dme distanceif the outbound leg length is based on a dme distance then the outbound leg terminates as soon as the limiting dme distance is reached

Question 12-23 : The following characteristics are specific for a holding pattern established at a vor standard turns 1 minute outbound inbound magnetic track of 010 degrees if an aircraft is approaching the vor on a heading of 030 degrees the appropriate entry procedure would be… ?

Direct.

Refer to figure inbound track is 010° and it is a standard holding turns to the right note that we are approaching with a heading of 030° => this puts us within the range of sector 3 entry direct entry read below further information regarding holding entries icao doc 8168 part i — section 6 chapter 1144 sector 1 entrysector 1 procedure parallel entry a at the fix the aircraft is turned left onto an outbound heading for the appropriate period of time see 149 timedistance outbound then b the aircraft is turned left onto the holding side to intercept the inbound track or to return to the fix and then c on second arrival over the holding fix the aircraft is turned right to follow the holding pattern145 sector 2 entrysector 2 procedure offset entry a at the fix the aircraft is turned onto a heading to make good a track making an angle of 30° from the reciprocal of the inbound track on the holding side then b the aircraft will fly outbound 1 for the appropriate period of time see 149 timedistance outbound where timing is specified or2 until the appropriate limiting dme distance is reached where distance is specified if a limiting radial is also specified then the outbound distance is determined either by the limiting dme distance or the limiting radial whichever comes first c the aircraft is turned right to intercept the inbound holding track and d on second arrival over the holding fix the aircraft is turned right to follow the holding pattern146 sector 3 entrysector 3 procedure direct entry having reached the fix the aircraft is turned right to follow the holding pattern

Question 12-24 : When a pilot receives a clearance specifying the time of departure from the holding point the pilot should… ?

Adjust the holding pattern within its limits in order to leave the holding point at the time specified.

Icao doc 8168chapter 1 holding criteria153 departing the patternwhen clearance is received specifying the time of departure from the holding point the pilot should adjust the pattern within the limits of the established holding procedure in order to leave the holding point at the time specified

Question 12-25 : Atc instructs you to hold at cle vor inbound track 270° right turns – you are presently tracking towards the cle vor on track 050° therefore the appropriate type of entry into the hold is… ?

Offset.

Refer to figure inbound course 270° therefore sector 3 direct entry will expand from 020° to 200° sector 2 offeset entry will expand from 200° to 270°we are approaching on a 050° track which means that we are approaching from 230° 050° + 180° on a 050° track => therefore we will be performing an offset entry

Question 12-26 : The transition layer is the airspace located… ?

Between the transition level and the transition altitude.

Refer to figurein flight when an aircraft is at or below the transition altitude ta its vertical position shall be expressed in terms of altitude references to the vertical position of the aircraft in air ground communications shall also be expressed in terms of altitudes it is the upper limit from the surface to use the local qnh altimeter settingonce the en route flight is at or above the transition level tl the vertical position of the aircraft shall be expressed in terms of flight levelsfinally the airspace between the transition altitude ta and the transition level tl is called transition layer the thickness of this layer varies from country to countrywhen passing through the transition layer the vertical position of the aircraft shall be expressed in terms of flight levels when climbing and expressed in altitude when descending

Question 12-27 : The transition level is… ?

The lowest flight level available for use above the transition altitude.

Refer to figureicao doc 8168transition level the lowest flight level available for use above the transition altitudetransition altitude ta the ta is usually specified for each aerodrome by the state in which it is located and shall always be published in charts broadcast by atc as well as published in aips the height above the aerodrome of the ta shall be as low as possible but not normally less than 3000 ft the transition altitude is rounded up to the next full 300 m 1000 ft in flight when an aircraft is at or below the transition altitude ta its vertical position shall be expressed in terms of altitude at the transition altitude ta when climbing change altimeter from qnh to standard settingtransition level tl the transition level shall be passed to the aircraft crew in due time prior to approach and landing tl shall be communicated by the atis and it shall be confirmed back by the aircraft crew at the transition level the altimeter shall be set to standard altimeter setting of 10132 hpa and this is the first available flight level ie the lowest usable flight level above the transition altitude once the en route flight is at or above the transition level tl the vertical position of the aircraft shall be expressed in terms of flight levelsat the transition level tl when descending change altimeter from standard used for flight levels to local qnh

Question 12-28 : In the vicinity of an aerodrome of intended landing or used for take off the vertical position of aircraft shall be expressed in terms of ?

Altitude at or below the transition altitude.

Refer to figureicao doc 8168214 references to vertical position2141 the vertical position of aircraft operating at or below the transition altitude shall be expressed in terms of altitude vertical position at or above the transition level shall be expressed in terms of flight levels this terminology applies during a climb b en route flight andc approach and landing except as provided for in 243 references to vertical positioning after approach clearance

Question 12-29 : According to icao doc 8168 pans ops transition altitudes shall be ?

Published in aeronautical information publications and shown on the appropriate charts.

Icao doc 8168chapter 2 basic altimeter setting requirements212 transition altitude2121 a transition altitude shall normally be specified for each aerodrome by the state in which the aerodrome is located2127 transition altitudes shall be published in aeronautical information publications and shown on the appropriate charts

Question 12-30 : Where shall flight level zero be located ?

At the atmospheric pressure level of 10132 hpa.

Icao doc 8168chapter 2 basic altimeter setting requirements211 system of flight levels2111 flight level zero shall be located at the atmospheric pressure level of 10132 hpa consecutive flight levels shall be separated by a pressure interval corresponding to at least 500 ft 1524 m in the standard atmosphere

Question 12-31 : According to icao doc 8168 pans ops the transition altitude is normally specified as a calculated height rounded up to the next full ?

1000 ft.

Icao doc 8168212 transition altitude2125 the calculated height of the transition altitude shall be rounded up to the next full 300 m 1000 ft

Question 12-32 : Altimeter setting procedures – transition level – the vertical position of an aircraft at or above the transition level with altimeter setting 10132 hpa shall be expressed in terms of… ?

Flight level.

Refer to figureicao doc 8168214 references to vertical position2141 the vertical position of aircraft operating at or below the transition altitude shall be expressed in terms of altitude vertical position at or above the transition level shall be expressed in terms of flight levels this terminology applies during a climb b en route flight andc approach and landing except as provided for in 243 references to vertical positioning after approach clearance

Question 12-33 : State the main objectives for altimeter setting procedures ?

The main reason is to provide vertical separation between aircraft and terrain clearance during all phases.

Icao doc 8168 chapter 1 introduction to altimeter setting procedures11 these procedures describe the method for providing adequate vertical separation between aircraft and for providing adequate terrain clearance during all phases of a flight

Question 12-34 : According to icao doc 8168 pans ops for aircraft approaching a controlled aerodrome for landing the qnh altimeter setting shall be made available ?

In approach clearances and in clearances to enter the traffic circuit.

Icao doc 8168chapter 2 basic altimeter setting requirements22 take off and climba qnh altimeter setting shall be made available to aircraft in taxi clearances prior to take off24 approach and landing241 the qnh altimeter setting shall be made available to aircraft in approach clearances and in clearances to enter the traffic circuit242 a qfe altimeter setting clearly identified as such should be made available in approach and landing clearances this should be available on request or on a regular basis in accordance with local arrangements

Question 12-35 : When may the vertical position of an aircraft above the transition level be referenced to altitudes ?

After approach clearance has been issued and the descent to land is begun provided that level flight above the transition altitude is not anticipated.

Icao altimeter setting procedurestransition altitude the altitude in the vicinity of an airport at or below which the vertical position of an aircraft is determined from an altimeter set to qnh transition altitude is normally specified for each airfield by the country in which the airfield exists transition altitude will not normally be below 3000 ft and must be published on the appropriate chartstransition level the lowest flight level available for use above the transition altitude transition level is usually passed to the aircraft during the approach or landing clearances the transition layer may be published or it may be supplied by atc via the atis or during the arrival half flight levels may be used for example 'fl45'transition between flight levels and altitudes the vertical position of an aircraft at or below transition altitude shall be expressed in altitude qnh vertical position at or above the transition level shall be expressed in terms of flight levels qne when passing through the transition layer vertical position shall be expressed in terms of flight levels when cllimbing and in terms of altitudes qnh when descending after an approach clearance has been issued and the descent to land is commenced the vertical positioning of an aircraft above the transition level may be by reference to altitude qnh provided that level flight above the transition altitude is not indicated or anticipated this is intended for turbo jet aircraft where an uninterrupted descent from high altitude is desired and for airfields equipped to reference altitudes throughout the descentnormally switching over to qnh will occur at the transition level however exceptions shall be allowed where the vertical position of the aircraft may be referenced to altitudes provided that the aircraft is descending does not level off above the transition altitude and has received an approach clearance

Question 12-36 : The aircraft is above the transition level and descending when can the flight crew change the altimeter setting from 10132 hpa to qnh during the descent to land ?

After approach clearance has been issued provided that level flight above the transition altitude is not indicated or anticipated.

Icao doc 8168chapter 2 basic altimeter setting requirements243 references to vertical positioning after approach clearanceafter approach clearance has been issued and the descent to land is begun the vertical positioning of an aircraft above the transition level may be by reference to altitudes qnh provided that level flight above the transition altitude is not indicated or anticipatednote— this applies primarily to turbine engine aircraft for which an uninterrupted descent from a high altitude is desirable and to aerodromes equipped to control such aircraft by reference to altitudes throughout the descent

Question 12-37 : When should the latest qnh altimeter setting for the aerodrome be obtained ?

Prior to descending below the transition level.

Icao doc 8168chapter 3 procedures for operators and pilots35 approach and landing351 before beginning the initial approach to an aerodrome the number of the transition level shall be obtainednote— the transition level is normally obtained from the appropriate air traffic services unit352 before descending below the transition level the latest qnh altimeter setting for the aerodrome shall be obtainednote— the latest qnh altimeter setting for the aerodrome is normally obtained from the appropriate air traffic services unit353 as the aircraft descends through the transition level the reference for the vertical position of the aircraft shall be changed from flight levels 10132 hpa

Question 12-38 : According to icao doc 8168 pans ops prior to take off one altimeter shall be set on the latest 1 altimeter setting for the aerodrome what is the abbreviation for the missing term ?

Qnh.

Icao doc 8168chapter 3 procedures for operators and pilots33 take off and climb331 before taking off one altimeter shall be set on the latest qnh altimeter setting for the aerodrome332 during climb to and while at the transition altitude references to the vertical position of the aircraft in airground communications shall be expressed in terms of altitudes333 on climbing through the transition altitude the reference for the vertical position of the aircraft shall be changed from altitudes qnh to flight levels 10132 hpa and thereafter the vertical position shall be expressed in terms of flight levels

Question 12-39 : Independent parallel approaches are being conducted with vectoring to the ils localiser course or mls final approach track the final vector shall be such as to enable the aircraft to intercept the ils localiser course or mls final approach track at an angle not greater than… ?

30 degrees.

Icao doc 816815 vectoring to the ils localizer course or mls final approach track151 when simultaneous independent parallel approaches are in progress the following apply c when vectoring to intercept the ils localizer course or mls final approach track the final vector shall be such as to 1 allow the aircraft to intercept the ils localizer course or mls final approach track at an angle not greater than 30 degrees and2 provide at least 2 km 10 nm straight and level flight prior to ils localizer course or mls final approach track interceptthe vector shall also be such as to enable the aircraft to be established on the ils localizer course or mls final approach track in level flight for at least 37 km 20 nm prior to intercepting the ils glide path or specified mls elevation angle

Question 12-40 : When being vectored what is the maximum angle of interception for an ils localizer crs or mls final app track in case of simultaneous independent parallel instrument approaches ?

30.

Icao doc 816815 vectoring to the ils localizer course or mls final approach track151 when simultaneous independent parallel approaches are in progress the following apply c when vectoring to intercept the ils localizer course or mls final approach track the final vector shall be such as to 1 allow the aircraft to intercept the ils localizer course or mls final approach track at an angle not greater than 30 degrees and2 provide at least 2 km 10 nm straight and level flight prior to ils localizer course or mls final approach track interceptthe vector shall also be such as to enable the aircraft to be established on the ils localizer course or mls final approach track in level flight for at least 37 km 20 nm prior to intercepting the ils glide path or specified mls elevation angle