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

Part I — Section 2, Chapter 2 I-2-2-7
Table I-2-2-1. System use accuracy (2SD) of facility providing track guidance and
facility not providing track guidance
VOR 1
ILS NDB
System use accuracy of facility NOT providing track +/– 4.5° +/– 1.4° +/– 6.2°
System use accuracy of facility providing track +/– 5.2° +/– 2.4° +/– 6.9°
1. The VOR values of +/– 5.2° and +/– 4.5° may be modified according to the value of a) in Table I-2-2-2, resulting from flight tests.
Table I-2-2-2. Tolerances on which system use accuracies are based
The values in Table I-2-2-1 are the result of a combination, on a root
sum square basis, of the following tolerances
VOR ILS NDB
a) ground system tolerance +/– 3. 6° +/– 1° 1
+/– 3°
b) airborne receiving tolerance +/– 2.7° +/– 1° +/– 5.4°
c) light technical tolerance 2
1. Includes beam bends.
+/– 2.5° +/– 2° +/– 3°
2. Flight technical tolerance is only applied to navigation aids providing track. It is not applied to fix intersecting navigation aids.
Parameter
Table I-2-2-3.
TAR
within 37 km (20 NM)
RSR
within 74 km (40 NM)
Video map accuracy 1.1 km 0.6 NM 2.2 km 1.2 NM
Azimuth accuracy 0.7 km 0.4 NM 1.5 km 0.8 NM
Flight technical
tolerance
0.7 km
(5 s at 500 km/h)
0.3 NM
(5 s at 250 kt)
1.4 km
(10sat500km/h)
0.7 NM
(10sat250kt)
Controller technical
tolerance 0.6 km 0.3 NM 1.1 km 0.6 NM
Total fix tolerance (RSS'd) ± 1.6 km ± 0.8 NM ± 3.2 km ± 1.7 NM
23/11/06