Project
Chart
Upload a PDF or picture of the chart. It stays in this browser and is not sent anywhere.
To place the overlay, tell the tool where at least two waypoints are on the chart. Pick a waypoint, press the button, then click that waypoint's symbol on the chart. Choose points far apart.
Waypoints, thresholds, navaids
One per line: NAME, LAT, LON, TYPE, ELEV_FT. TYPE is WPT, THR, NAVAID or ARC (arc centre). Coordinates can be 134112.34N, N13°41'12.34" or decimal degrees.
Procedures (ARINC 424 coding table)
Start each procedure with PROC, name, SID|STAR|APCH, nav spec, threshold, opposite threshold, then a heading line and one leg per line. AIP column headings are accepted. ALT: +3000 at or above, -3000 at or below, 3000 at, FL070. COURSE is magnetic. See the Guide tab for every column, and for the MINIMA, VNAVTEMP, CHARTDIST and CHARTALT lines that check the chart.
Obstacles (optional)
From the designer report: NAME, LAT, LON, ELEV_FT.
Navigation database (pre-flight validation)
For Doc 9906 Vol 5 §2.3.3: type the waypoints and the coding as loaded in the FMS or supplied by the database house, in the same formats as above and with the same PROC names. The tool compares them with the procedure data leg by leg.
Every item of the flight operational review (Step 2) and the pre-flight validation (Step 3) in Doc 9906 Vol 5, 2nd edition. Each shows how far the tool covers it. Answer the items yourself; where you leave one unanswered, the tool's own result is used.
Report header
Summary in the Appendix C.1 form
All items
Every limit the checks use is listed with its source and how far it has been verified.
- Checked: read from Doc 8168 Vol II (7th ed.) or Doc 9905 (3rd ed.), or the same value as your 8168 Tools project, which was verified against Doc 8168.
- From memory, confirm (amber): not yet checked against the document. None remain at present.
- Your choice: review tolerances and design assumptions.
Changed values are outlined and saved in this browser.
How to use it
- Fill in the project box: magnetic variation, aerodrome elevation, aircraft category.
- Paste the waypoint coordinates and the coding table. The tabular description printed on an AIP chart can be typed in as it is, with its own column headings (Path Descriptor, Waypoint Identifier, Course °M (°T) and so on) and fix roles in brackets such as (IAF) BAVOR. The prompt below gets an AI assistant to convert PDF tables for you.
- For an approach, enter each transition (IAF to IF) as its own PROC block and the IF to MAPt part with the missed approach as another. The tool joins them and checks the turn at the IF.
- Look at the three counts above the map: problems, items to check, and checks passed. On the map a red leg with a ! marker has a problem, amber needs your judgement, green is fine. Click a leg or a marker to see why.
- The Findings tab lists the problems first. Click any line to show or hide its explanation. Turn on Passed or Notes to see everything that was checked.
- Upload the chart and place it with two or more waypoints. The checked track is drawn over the chart, coloured by result. Click a leg to read its findings.
- Press Findings report to copy the results into your validation report.
Converting PDF tables with your AI subscription
Open a chat with your AI assistant, attach the designer report or chart, and paste this prompt. Then copy its three answers into the Data tab. Always compare a few values with the source afterwards.
Leg columns
FIX fix name (blank for CA, VA, VM, VI) ROLE IAF, IF, FAF or MAPt (approaches only) FLYOVER Y or N PT path terminator: IF TF RF CF DF CA FA VA VI VM FM HA HF HM COURSE magnetic course or heading, degrees TURN L or R ALT +3000 -3000 3000 3000-5000 FL070 SPEED speed limit, kt IAS DIST published leg distance, NM VPA vertical path angle, degrees CENTER RF arc centre (name from the waypoint list) RADIUS RF radius, NM
Lines that check the chart
Add these after the legs of an approach, with values read from the chart.
MINIMA, LNAV, 480 OCA of each minima line VNAVTEMP, 15, 45 Baro-VNAV temperature limits, °C CHARTDIST, GULNA, 12.0 profile distance from threshold CHARTALT, 3, 1025 altitude/distance table entry
What is checked
- Data (Doc 9906 Vol 5 §2.3.3): published distances, magnetic and true courses against WGS-84 geodesic computation; missing or duplicate fixes.
- Coding (§2.2.1 j, §2.3.3.5 c): first and last legs and permitted leg pairs from Doc 8168 Tables III-2-5-App-1 and App-2, rules 5a to 5e, required fields, approach fix roles.
- Geometry (§2.2.2 e, g): track change limits, minimum leg length (stabilization distance and Table III-2-1-21), segment lengths, RF radius, tangency and bank angle, final track alignment.
- Vertical (§2.2.2 i): descent gradients on track distance through fly-by turns, final gradient and VPA, SID climb gradient needed for altitude constraints.
- Obstacles: a simplified screening for RNP APCH initial, intermediate and final segments.
- Chart (§2.2.1 e, §2.2.2 j): profile distances, altitude/distance table and rate of descent table against the computed path.
- Operations (§2.2.2 f, h): distance to the runway at each OCA, Baro-VNAV temperature limits, holding speed, complexity count.
- Database (§2.3.3): waypoints and coding from the navigation database against the procedure data.
- The Doc 9906 tab lists every item of Steps 2 and 3 and produces the Appendix C.1 review report.
What is not checked yet
- Full protection areas, turn area construction and wind spirals. The obstacle check uses constant-width areas on straight legs only.
- SID and missed approach obstacle surfaces, holding areas, RNP AR (Doc 9905) surfaces, conventional procedures.
- Chart content such as notes, minima boxes and symbols.
This tool supports your review. It does not replace the designer's report or your judgement as validation pilot.