RNAV Approach Procedures based on VOR/DME

8.53 Basic Assumption. RNAV procedures based on VOR/DME are non-precision procedures. It is assumed that the reference facility is composed of a VOR and co-located DME equipment. Aircraft equipped with RNAV systems approved by the authority of the State of the Operator may use these systems to carry out VOR/DME RNAV approaches providing that before starting a flight it is ensured that:

• The RNAV equipment is serviceable;

• The pilot has current knowledge how to operate the equipment so as to achieve the optimum level of accuracy; and

• The published VOR/DME facility upon which the procedure is based is serviceable.

8.54 Data Insertion Errors. The procedures require a computer to handle the data and this has to be programmed with current promulgated data. This is inserted by the operator or the crew and the system has no method of checking for input errors. Therefore, the computed positional information presented (‘outputted’) to the crew may well contain errors induced into the system.

Approach Procedures 8

Questions 8

15.What are the Cat II ILS criteria for instrument runways?

a.RVR ≥ 350 m DH not below 100 ft.

b.RVR ≥ 200 m DH not below 100 ft.

c.RVR ≥ 200 m DH not below 200 ft.

d.RVR ≥ 300 m DH not below 200 ft.

16.When is OCH for an ILS approach complied with?

a.Not more than ½ scale glide path and full scale localizer deflection.

b.Not more than ½ scale localizer deflection.

c.Not more than ½ scale glide path and localizer deflection.

d.Not more than full scale glide path and ½ scale localizer deflection.

17.What is the MOC for the intermediate missed approach segment?

a.30 m.

b.50 m.

c.120 m.

d.300 m.

18.In which stage of an instrument approach do you align with the runway?

a.Initial segment.

b.Final segment.

c.Arrival segment.

d.Intermediate segment.

19.What are ICAO defined instrument approaches?

a.Non-precision and CAT I/II/III precision.

b.Precision in general.

c.Precision CAT I/II/III.

d.Instrument precision and CAT II/III.

20.Within what angle of the extended centre line of a runway is a non-precision approach considered to be straight-in?

a.10°.

b.15°.

c.30°.

d.40°.

21.What is the name of the phase of an instrument approach in which the aircraft is aligned with the runway and descent commenced?

a.Final.

b.Initial.

c.Intermediate.

d.Arrival.

Questions 8

29.Where does the initial phase of a missed approach procedure end?

a.From where a new instrument approach can be commenced.

b.Where 50 ft obstacle clearance is obtained and can be maintained.

c.Where a climb is established.

d.At the missed approach point.

30.Who determines OCA/H?

a.The operator.

b.The flight operations department.

c.The authority of the State.

d.The Commander.

31.What does an approach plate not include?

a.OCH.

b.ILS/DME frequencies.

c.Obstacles infringing the OIS.

d.Aerodrome operating minima for the use of the aerodrome as an alternate aerodrome, if higher than normal.

32.The Vat for a Category B aircraft is:

a.up to 91 kt.

b.90 to 121 kt inclusive.

c.141 to 165 kt inclusive.

d.91 to 120 kt inclusive.

33.OCH clearance on ILS is given, provided the accuracy flown on the localizer is within:

a.¼ scale deflection.

b.1½ scale deflection.

c.1 scale deflection.

d.½ scale deflection.

34.Where does the initial sector of a missed approach procedure end?

a.When a height of 50 m has been achieved and maintained.

b.When established in the climb.

c.At the missed approach point.

d.When en route either to the hold or departure.

35.When using a DR segment to take up an ILS instrument approach, what is the maximum length of the track that may be used to intercept the localizer?

a.10 NM.

b.5 NM.

c.10 minutes.

d.5 minutes.

36.The obstacle clearance surfaces for an ILS assume a pilot localizer accuracy of:

a.¼ scale.

b.½ scale.

c.1 scale.

d.1 ½ scale.

37.The abbreviation OCH means:

a.obstacle clearance height.

b.obstruction/collision height.

c.obstruction clearance height.

d.obstacle confirmation height.

38.What is the descent gradient in the final segment for an ILS CAT II approach?

a.Between 2.5° and 3.5°.

b.3%.

c.3°.

d.Up to 400 ft/NM.

39.What are the 5 segments of an instrument approach?

a.Initial; Intermediate; Descent; Final; Landing.

b.Arrival; Initial; Intermediate; Final; Missed Approach.

c.Initial; Intermediate; Final; Landing; Missed Approach.

d.Arrival; Initial; Intermediate; Final; Landing.

40.The minimum sector altitude gives an obstacle clearance of 300 metres within a certain radius from the navigation aid on which the instrument procedure is based. This radius is:

a.15 NM (28 km).

b.30 NM (55 km).

c.25 NM (46 km).

d.20 NM (37 km).

41.What is the minimum ground visibility for a CAT I ILS approach?

a.800 m.

b.550 m.

c.50 m.

d.550 ft.

42.Where does the initial approach segment begin in an instrument approach procedure?

a.At the IF.

b.At the IAF.

c.At the FAF.

d.At the final en route fix.

Questions 8