21.03.2013 Views

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

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

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

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>II</strong>I-1-2-4 Procedures — <strong>Aircraft</strong> <strong>Operations</strong> — <strong>Volume</strong> <strong>II</strong><br />

Navigation<br />

System<br />

Accuracy (3)<br />

Integrity<br />

Monitor alarm<br />

Limit (3)<br />

23/11/06<br />

Table <strong>II</strong>I-1-2-2. Total system tolerances <strong>and</strong> area semi-widths for basic GNSS receivers<br />

IAF/ MAHF<br />

(1)<br />

(km/NM)<br />

IAF/ MAHF<br />

(2)<br />

(km/NM)<br />

Fix in<br />

initial<br />

segment<br />

(km/NM)<br />

IF<br />

(km/NM)<br />

FAF<br />

(km/NM)<br />

MAPt<br />

(km/NM)<br />

Fix in<br />

missed<br />

approach<br />

segment or<br />

departure<br />

procedure<br />

(km/NM) (2)<br />

Fix in<br />

missed<br />

approach<br />

segment or<br />

departure<br />

procedure<br />

(km/NM) (1)<br />

0.23/0.12 0.23/0.12 0.23/0.12 0.23/0.12 0.23/0.12 0.23/0.12 0.23/0.12 0.23/0.12<br />

3.70/2.00 1.85/1.00 1.85/1.00 1.85/1.00 0.56/0.30 0.56/0.30 1.85/1.00 3.70/2.00<br />

Time to alarm 30 sec 10 sec 10 sec 10 sec 10 sec 10 sec 10 sec 30 sec<br />

FTT 3.70/2.00 0.93/0.50 0.93/0.50 0.93/0.50 0.56/0.30 0.37/0.20 0.85/0.50 3.70/2.00<br />

ATT 3.70/2.00 1.85/1.00 1.85/1.00 1.85/1.00 0.56/0.30 0.56/0.30 1.85/1.00 3.70/2.00<br />

XTT 7.41/4.00 2.78/1.50 2.78/1.50 2.78/1.50 1.11/0.60 0.93/0.50 2.78/1.50 7.41/4.00<br />

Area<br />

Semiwidth (6)<br />

14.82/8.00 9.26/5.00<br />

(4)<br />

9.26/5.00<br />

(4)<br />

9.26/5.00<br />

(4)<br />

3.70/2.00<br />

(5)<br />

1.85/1.00 9.26/5.00<br />

(4)<br />

14.82/8.00<br />

Notes.—<br />

1. IAF <strong>and</strong> missed approach segment or departure procedure fix positioned outside 56 km (30 NM) radial distance<br />

from the destination/departure airport ARP.<br />

2. IAF <strong>and</strong> missed approach segment or departure procedure fix positioned within 56 km (30 NM) radial distance<br />

from the destination/departure airport ARP.<br />

3. Includes all system computation tolerances.<br />

4. Based on flight trials, which included turns onto the initial approach segment, the operational assessment leads to<br />

retain 9.26 km (5.00 NM) in place <strong>of</strong> 2 XTT when using basic GNSS receivers except when provisions <strong>of</strong> Part I,<br />

Section 4, Chapter 3, Appendix B are employed. Part I, Section 4, Chapter 3, Appendix B contains material for the<br />

possible reduction <strong>of</strong> the basic GNSS area width <strong>of</strong> the initial approach segment.<br />

5. Based on flight trials.<br />

6. Area semi-widths are determined according to the formulae defined in 2.5, “XTT, ATT <strong>and</strong> Area Semi-width”.<br />

___________________

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!