{"id":15629,"date":"2026-06-06T07:54:07","date_gmt":"2026-06-06T02:24:07","guid":{"rendered":"https:\/\/ibexaviation.com\/pilot-training\/?page_id=15629"},"modified":"2026-08-04T06:32:29","modified_gmt":"2026-08-04T01:02:29","slug":"dgca-air-navigation-exam-calculation","status":"publish","type":"page","link":"https:\/\/ibexaviation.com\/pilot-training\/dgca-air-navigation-exam-calculation\/","title":{"rendered":"DGCA Air Navigation Exam Calculation"},"content":{"rendered":"

DGCA Navigation Calculations – 30 days<\/h2>\n
\n
\nDay 1:- EARTH: GC DIST & CDMVT <\/summary>\n

Position and Directions on the Surface of Earth: Finding Great Circle Distance using change in Latitude and Longitude – Conversion between True, Magnetic and Compass Directions<\/p>\n<\/details>\n

\nDay 2:- 1 IN 60: ALTER HEADING & HEIGHT ESTIMATE <\/summary>\n

Heading and Height using 1 in 60 Rule: Alteration of heading using Closing Angle and Double Track Error – Estimation of Height of Hill or Tower<\/p>\n<\/details>\n

\nDay 3:- CHART: SCALE CONVERSIONS <\/summary>\n

Scale of Maps and Charts: Conversion between Representative Fraction and Statement in Words – Finding distances on earth and length on chart<\/p>\n<\/details>\n

\nDay 4:- WIND TRIANGLE: HDG TRK WV TAS GS <\/summary>\n

Finding and Applying winds using Vector Triangle on CX-3: Find Wind Velocity, Heading, Track, TAS and Ground Speeds – Find Head and Tail wind Components<\/p>\n<\/details>\n

\nDay 5:- CONVERGENCY AND CONVERSION ANGLE: GC & RL TRACKS<\/summary>\n

Earth Convergence and Conversion Angle: Calculation of Great Circle and Rhumb line tracks using Convergency and Conversion Angle<\/p>\n<\/details>\n

\nDay 6:- DEPARTURE: DISTANCE & POSITION <\/summary>\n

Departure Calculations: Distance calculations using Departure Formulae – Distance Calculations<\/p>\n<\/details>\n

\nDay 7:- MERCATOR: SCALE <\/summary>\n

Mercator Chart Calculations: Finding Mercator Scale and Earth Distance at a Latitude<\/p>\n<\/details>\n

\nDay 8:- LAMBERT: SCALE – GC TRACK <\/summary>\n

Lambert Chart Calculations: Estimation of Lambert Scale using One Sixth Rule – Finding Great Circle Directions<\/p>\n<\/details>\n

\nDay 9:- POLAR STEREOGRAPHIC PROJECTION: GC TRACK<\/summary>\n

Polar stereographic Chart Calculations: Calculation of Great Circle Track in North and South PSP using Geometry<\/p>\n<\/details>\n

\nDay 10:- TIME: GMT, LMT, ZT, ST, IST<\/summary>\n

Conversion of Time: Conversion between GMT, LMT, ZT, ST and IST<\/p>\n<\/details>\n

\nDay 11:- AIR ALMANAC: SR SS TWILIGHT<\/summary>\n

Calculations using an Air Almanac: Calculation of Sunrise, Sunset and Twilight<\/p>\n<\/details>\n

\nDay 12:- OAT: TAT RAT SAT (\u00b0C \u00b0F \u00b0K) <\/summary>\n

Outside Air Temperature Numericals: Calculation of TAT RAT SAT and Unit Conversion between \u00b0C, \u00b0F and \u00b0K <\/p>\n<\/details>\n

\nDay 13:- AIR SPEED: CAS RAS EAS TAS MNO<\/summary>\n

Conversion between Air Speed and Mach Number: Calculation of CAS RAS EAS and TAS – Calculation of Mach Number and Local Speed of Sound<\/p>\n<\/details>\n

\nDay 14:- ALTIMETER: QFE QNH QFF QNE TA IA DA<\/summary>\n

Numericals involving Altimeter Settings: Conversion between QFE QNH and QFF – Calculation of True, Indicated, Pressure and Density Altitudes<\/p>\n<\/details>\n

\nDay 15:- DIC: COMPASS SWING – OVER & UNDER READING<\/summary>\n

Interpretation of Direct Indicating Compass: Deviation Compass Swing Procedure – Turn and Acceleration Errors in Direct Reading Compass<\/p>\n<\/details>\n

\nDay 16:- ARTIFICIAL HORIZON: RATE OF TURN<\/summary>\n

Interpretation of Artificial Horizon: Rate of Turn and Bank Angle Calculations using Artificial Horizon<\/p>\n<\/details>\n

\nDay 17:- FLIGHT PLAN: NAM & NGM<\/summary>\n

Operational Flight Plan: Preparation of an Operational flight plan – Calculations involving Nautical Air Miles and Nautical Ground Miles<\/p>\n<\/details>\n

\nDay 18:- CRITICAL POINT: CP & PET<\/summary>\n

Critical Point: Calculation of Critical Point under Normal and Engine Failure conditions<\/p>\n<\/details>\n

\nDay 19:- POINT OF SAFE RETURN: PNR PSR & SAR<\/summary>\n

Point of No Return: Calculation of Point of Safe Return under Normal and Engine Failure conditions – Specific Air Range Calculations<\/p>\n<\/details>\n

\nDay 20:- CLIMB & DESCENT: DIST & TIME<\/summary>\n

Numericals involving Climb and Descent Phase: Calculation of Distance and Time during Climb and Descend<\/p>\n<\/details>\n

\nDay 21:- AC LOADING: PAYLOAD & FUEL<\/summary>\n

Aircraft Load calculations: Calculation of Traffic Load and Extra Fuel using MTOM MLM & ZFM<\/p>\n<\/details>\n

\nDay 22:- CENTRE OF GRAVITY: SHIFT OF CG<\/summary>\n

Aircraft Centre of Gravity Numericals: Aircraft Weighing Procedure – Shift of CG by Moving and Adding Load<\/p>\n<\/details>\n

\nDay 23:- FUEL: WEIGHT VOLUME & DENSITY<\/summary>\n

Fuel Planning: Calculation of Weight, Volume, Specific Gravity and Density of fuel<\/p>\n<\/details>\n

\nDay 24:- RADIO WAVE: SPEED WAVELENGTH FREQUENCY POWER<\/summary>\n

Basic Radio Wave Theory: Calculation of Speed, Frequency, Wavelength, Band and Power or Radio Waves<\/p>\n<\/details>\n

\nDay 25:- ADF: READ RBI & RMI<\/summary>\n

Interpretation of ADF using Relative Bearing Indicator: Interpretation of Relative Bearing Indicator – Calculation of distance from ADF by change in Relative Bearing<\/p>\n<\/details>\n

\nDay 26:- VOR: LINE OF SIGHT – READ RMI CDI & HSI<\/summary>\n

Interpretation of VOR using RMI, CDI and HSI: Range of VOR using Line of Sight Equation – Interpretation of RMI CDI HSI<\/p>\n<\/details>\n

\nDay 27:- IFR NAVIGATION: RADIAL MAINTENANCE – LET DOWN – HOLDING PATTERN<\/summary>\n

Holding and Instrument Let Down Procedures: Holding Pattern – Radial Interception and Maintenance<\/p>\n<\/details>\n

\nDay 28:- ILS: COVERAGE – READ RMI CDI & HSI<\/summary>\n

Calculations using ILS Indications: Coverage of Localiser and Glide Slope – Height and Distance on ILS using RMI CDI and HSI – Rate of Descent Calculation<\/p>\n<\/details>\n

\nDay 29:- RADAR: RANGE & RESOLUTION OF RADAR<\/summary>\n

Numericals on Radar Theory: Max and Min range of Radar using PW, PRF and PRR – Calculation of Radar Resolution<\/p>\n<\/details>\n

\nDay 30:- AWR: BASE & TOP OF CLOUDS – DME: SLANT & PLAN RANGE<\/summary>\n

Calculations in Airborne Weather Radar and Distance Measuring Equipment: Calculation of Base and Top of CB Cloud – Finding the Slant and Plan Range in DME<\/p>\n<\/details>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DGCA Navigation Calculations – 30 days Day 1:- EARTH: GC DIST & CDMVT Position and Directions on the Surface of Earth: Finding Great Circle Distance using change in Latitude and Longitude – Conversion between True, Magnetic and Compass Directions Day 2:- 1 IN 60: ALTER HEADING & HEIGHT ESTIMATE Heading and Height using 1 in 60 Rule: Alteration of heading using Closing Angle and Double Track Error – Estimation of Height of Hill or Tower Day 3:- CHART: SCALE CONVERSIONS Scale of Maps and Charts: Conversion between Representative Fraction and…<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"disable_featured_image":false,"footnotes":""},"class_list":["post-15629","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/pages\/15629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/comments?post=15629"}],"version-history":[{"count":34,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/pages\/15629\/revisions"}],"predecessor-version":[{"id":16783,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/pages\/15629\/revisions\/16783"}],"wp:attachment":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/media?parent=15629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}