DGCA ATPL Air Navigation study plan

Derive latitude/longitude, great-circle distance and initial/final track for at least 10 point pairs using both haversine and the approximate '1 minute = 1 NM' method, and reconcile the two answers

Convert between true, magnetic and compass directions for 15 worked examples using given variation and deviation, including easterly and westerly cases

Compute local mean time, UTC and zone time for 8 scenarios crossing the date line in both directions

Read a sample topographical/plotting chart and extract position, scale, relief and symbol meaning for 12 features without a legend prompt

Solve 10 dead-reckoning plots combining heading, TAS, wind velocity and elapsed time, stating the resulting track made good and groundspeed

Explain the operating principle, frequency band, coverage and cockpit indication of VOR, DME, NDB/ADF and ILS localiser/glidepath in your own words

Interpret a sample instrument-approach chart excerpt: identify frequencies, courses, minima and missed-approach tracking

Distinguish magnetic variation from compass deviation and from radio-aid errors (e.g. quadrantal error, coastal refraction) in 10 classification questions

Compute DME slant-range to ground-range corrections and VOR radial/course intercept angles for 10 numerical problems

Determine aircraft position from two VOR radials or from a VOR/DME fix by plotting on a sample chart

Work through 8 ILS scenarios: localiser and glidepath deviations, decision height, and go-around triggers

Describe GNSS architecture (space, control, user segments), RAIM, and the difference between GPS, SBAS and GBAS in your own words

Interpret radar-derived information (primary/secondary, ground speed, track) in 5 applied questions

Build a full navigation flight plan for a 300 NM leg: route, true/magnetic tracks, wind triangle, leg times, fuel and ETA

Compute upper-wind and temperature effects on groundspeed and drift using a sample wind/temperature aloft table

Apply altimetry rules to convert indicated to true altitude across at least 6 temperature/pressure scenarios, including cold-temperature and high-pressure errors

Identify in-flight monitoring actions (position checks, fuel checks, revised ETA) for a sample diversion scenario

Compute mass, centre of gravity and moment for at least 8 loading scenarios using a sample load sheet, and check each against limits

Determine whether a given loading is inside the CG envelope by plotting or calculating, and state the corrective action if not

Calculate take-off and landing distances for 6 cases using sample performance tables, applying corrections for pressure altitude, temperature, wind and slope

Explain the effect of mass, density altitude and configuration on climb, cruise and landing performance in your own words

Explain how each navigation instrument (heading, air data, radio, GNSS, flight-management) integrates and cross-checks in the cockpit

Identify the failure modes and required pilot responses for pitot-static, gyroscopic and radio-navigation system failures in 8 scenarios

Apply the navigation regulations covered in the syllabus (flight-plan filing, position reporting, altimetry rules, RVSM awareness) to 10 applied questions

Interpret a sample operational flight plan and ATS flight plan form field by field

Re-test the three heaviest domains under timed conditions (90 minutes) and log every error by cause (knowledge gap, calculation slip, misread)

Re-work all previously missed questions from weeks 1-6 and confirm each is now correct without notes

Practise 20 mixed numerical problems spanning distance, wind triangle, radio-aid geometry and fuel/altimetry

Identify and drill the two weakest sub-topics from the error log

Run two full timed mock exams under exam conditions (no notes, strict time) and record scores per domain

Review every remaining weak domain from mock results and close gaps with targeted practice

Build a final one-page summary sheet of formulas, conventions and common traps

Confirm readiness by scoring at least 80% on each domain in a final self-test