Flight Instructors Training Procedures _revised AIC_x

1. AIM
LESSON 16
THE NDB APPROACH – PART 2
The aim of this lesson is to consolidate what has been learned about holding patterns and the NDB
approaches.
DEFINITION
The NDB approach is a series of manoeuvres carried out to transition from flight in IMC to a landing or
missed approach.
2. WHY IT IS BEING TAUGHT
This lesson allows the student to consolodate what has been learned as well as learn some new
concepts.
3. WHAT THE INSTRUCTOR IS TO TEACH
i. The concept of a visual descent point.
ii. The use of DME to determine the VDP.
iii. The procedure turn approach.
iv. Calculation the timing on the outbound leg.
4. THE AIR EXERCISE
i.
ii.
iii.
EXPECTED APPROACH TIME
PROCEDURE TURN APPROACH
THE VISUAL DESCENT POINT
i. Give the student an expected approach
time that would require 2 to 3 holds.
Consider flying the aircraft for a while whilst
the student works out the wind direction,
and how the hold is to be adjusted so as to
reach the fix at the correct time.
i. The aircraft should be positioned for a
sector 1 or 2 entry so that a procedure turn
approach can be carried out.
ii. The instructor must ensure that the student
does the necessary planning and that the
briefing is done.
iii. The student is likely to need reminding that
a descent will probably be required on the
outbound leg.
i. The student should be shown that if the
runway is not in view by the VDP, a landing
off the approach becomes unlikely, and in
most cases extremely unsafe, because the
high rate of descent required will lead to an
unstabilised approach.
ii. A missed approach may be commenced at
the VDP but no turn may be commenced
until the missed approach point has been
reached.
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