Aircraft Operations. Volume II - Construction of Visual and Instrument ...

I-4-3-App C-16 Procedures — Aircraft Operations — Volume II
3.3.4.1.2.5 Method of arrival at a VOR/DME holding and the corresponding entry procedures. The methods are
described in more detail as follows:
Case 1 — entry at the holding fix;
Case 1.1 — entry at the holding fix via a radial forming the fix:
a) Arrival on the VOR radial for the inbound leg, on the same heading as the inbound track. The arrival path (or
last segment thereof) is aligned with the inbound track and follows the same heading. The entry consists of
following the holding pattern (see Figure I-4-3-App C-14 a)).
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Protection of the entry: The entry is protected by the holding protection area.
b) Arrival on the VOR radial for the inbound leg, on a heading reciprocal to the inbound track. On arrival over the
holding fix, the aircraft turns onto the holding side on a track making an angle of 30° with the reciprocal of the
inbound track, until reaching the DME outbound limiting distance, at which point it turns to intercept the
inbound track. In the case of a VOR/DME holding entry away from the facility with a limiting radial, if the
aircraft encounters the radial ahead of the DME distance, it must turn and follow it until reaching the DME
outbound limiting distance, at which point it turns to join the inbound track (see Figure I-4-3-App C-14 b)).
Case 1.2 — entry at the holding fix via the DME arc forming the fix:
a) Arrival on the DME arc defining the holding fix, from the holding side. On arrival over the holding fix, the
aircraft turns and follows a track parallel to and reciprocal to the inbound track, until reaching the DME limiting
outbound distance, at which point it turns to intercept the inbound track (see Figure I-4-3-App C-14 c)).
b) Arrival on the DME arc defining the holding fix, from the non-holding side. On arrival over the holding
fix, the aircraft turns and follows a track parallel to and on the same heading as the outbound track,
until reaching the DME outbound limiting distance, at which point it turns to intercept the inbound track (see
Figure I-4-3-App C-14 d)).
An arrival track leading to a Case 1.2 a) entry should not be specified unless absolutely necessary, particularly
in a VOR/DME holding procedure away from the facility. If an appropriate DME distance is chosen, this type
of arrival can actually be replaced by one on a DME arc terminating in the extension of the inbound track (see
Figures I-4-3-App C-14 e) and f)).
Case 2 — entry at the fix at the end of the outbound leg via a radial forming the limiting fix:
a) outbound from the facility;
b) inbound from the facility.
On arrival over the fix at the end of the outbound leg, the aircraft turns and follows the holding pattern.
3.3.4.1.2.6 The sector 1 entry along the DME arc is protected as follows:
a) take a tracing of the template, turn it over and place point “a” on A3 with axis on the line Al, A3 to draw curve
“13”;
b) draw the line “14” parallel to line “3” (used in the construction of the basic area) and tangent to curve “13”, and
locate point C10 at the intersection of this line with arc DL2;