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

I-4-3-App C-22 Procedures — Aircraft Operations — Volume II
b) measure the angle between the line joining R and S and RP, add β (tolerance for an intersecting VOR, see
Part I, Section 2, Chapter 2, Table I-2-2-1) and round the result to the next higher degree; and
c) from S draw line RL making an angle of the rounded value of c) with RP and line RL2 making the angle β with
RL.
3.3.4.3.1.3 Protection of the outbound turn and outbound leg. Protection of the outbound turn and outbound leg is
drawn in the same manner as in 3.3.4.2.1.3 above.
3.3.4.3.1.4 Area containing the end of the outbound leg
a) If the intersection of extension of curve 1 and RL2 is nearer to Al than the intersection of extension of curve 1
and DL1 (case of Diagram I-4-3-App C-19), locate point Cl at the intersection of extension of curve 1 with line
RL2andC2andC3attheintersectionsofRL2withDL1andDL2;
b) if the intersection of extension of curve 1 and RL2 is between the intersections of the same extension with DL1
and DL2, locate points Cl and C2 at the intersections of the extension of curve 1 with arc DL1 and line RL2 and
point C3 at the intersection of RL2 with DL2;
c) if the intersection of extension of curve 1 and RL2 is further from Al than the intersection of the same extension
with DL2, do the same as in 3.3.4.2.1.4 a), b) and c); and
d) locate points C4, C6 and eventually C5 in the same manner as explained in 3.3.4.2.1.4 d) and e).
3.3.4.3.1.5 Protection of the inbound turn. Rotate the template 180°, then:
a) place the template point “a” on Cl, C2 and C3, with axis parallel to the inbound track, and draw curves “4”, “5”
and “6” (part of the protection line of a turn of more than 180°) and their common tangents;
b) move template point “a” along arc DL2 from C3 to C6, with axis parallel to the inbound track, and draw curve
“7”;
c) place template point “a” on C6, C4 and eventually on C5, with axis parallel to the inbound track, and draw
curves “8”, “9” and eventually “10” and their common tangents; and
d) draw the tangent to curves “9” and “2”.
3.3.4.3.2 Construction of the entry area
3.3.4.3.2.1 Protection of sector 1 entry procedures. For the protection of sector 1 entry procedure see 3.3.4.2.2.1
above.
3.3.4.3.2.2 Protection of sector 2 entry procedures. It is assumed that having passed the fix, the pilot makes good
a track (with ±5° error) making an angle of 30° with the inbound track on the manoeuvring side and reaching the
limiting outbound distance, turns inbound. In addition, the flying time on the 30° offset track is limited to 1 min 30 s
after which the pilot is expected to turn a heading parallel to the inbound track until reaching the limiting outbound
distance, where the pilot turns inbound.
3.3.4.3.2.2.1 For a procedure with outbound of more than 1 min 30 s the protection of sector 2 entry procedure is
assured by the basic area.
23/11/06