Flight Instructors Training Procedures _revised AIC_x

1. AIM
LESSON 15
THE NDB APPROACH – PART 1
The aim of this exercise is to teach the student how to carry out an NDB approach with sole reference
to instruments.
DEFINITION
The NDB approach is a series of manoeuvres carried out with sole reference to the instruments in the
aircraft whereby the aircraft descends from the minimum en-route altitude to a point, where if visual, the
pilot is able to carry out a landing and if not, can safely carry out a missed approach and divert to an
alternate airfield.
2. WHY IT IS BEING TAUGHT
This manoeuvre is taught so that the student will be able to safely carry out an approach in IMC using
the ADF as the sole means of navigation in the aircraft.
3. WHAT THE INSTRUCTOR IS TO TEACH
It is assumed that the student has had the necessary briefing on weather minima and interpretation of
the JEPPESEN, AERAD, CAR’s/CAT’s, AIP’s, AIC’s and NOTAM’s applicable to IFR operations:
i. What factors are accounted for in constructing an instrument approach procedure.
ii. How to read an approach chart. It is suggested that the instructor break the approach into the
various segments i.e. initial approach, intermediate approach, final approach and the missed
approach phase. The various aspects should then be considered with reference to the actual
approach to be flown that day i.e. MSA, entries, timing, speeds, effects of wind, landing checks,
identifying beacons, setting the D.I., what to expect when breaking out of cloud, the go-around
and missed approach procedure and what course of action will be followed then.
iii. How to plan the approach.
iv. How the student should brief himself as to how the approach is to be flown if flying alone or the
other crew member in a multi-crew situation.
v. How to interpret and fly the missed approach portion of the approach.
vi. Fuel planning and monitoring.
vii. The various radio calls to be made.
viii. The sequence that should be followed when crossing over the NDB for example Time, Turn,
Throttle, Twist/Tune and Talk.
4. THE AIR EXERCISE
This exercise should be carried out in controlled airspace with a flight plan and all the correct ATC
procedures i.e. start clearance, etc. This exercise will need to be repeated until the student has a good
grasp of how to fly an NDB approach.
i.
THE POSITIONING FLIGHT
),
i. The aircraft should be positioned
sufficiently far away from the NDB that the
student will have sufficient time available to
brief the instructor on how the approach is
to be flown.
ii. It is once again suggested that the
instructor fly the aircraft while the student
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