TRACK AND DRIFT QUESTIONS
Q code and equivalent Terms:
MBT- Magnetic Bearing To MBF - Magnetic Bearing from
TBT - True Bearing To TBF -True Bearing From
RMI - Radio Magnetic Indicator TMG-Track Made Good
RT-. Required Track TE- Track Error
H-Heading MH- Magnetic Heading
RB - Relative Bearing LSR- Loop Scale Reading
QC- Quadrantal Corrections
QDMIMBTRM/Homing/ track or TMG to a radio station- Magnetic heading to be steered by
the aircraft, with no wind, to make for the station is... Degrees.
QDR/IMBFPhase Difference/track or TMG from aradio station/radio/tbearing: Magnetic
bearing of the aircraft in nil winds is ...... degrees.
QTETBFRrack or TMG on a map or chart from a station: True bearing of theaircraft in nil
winds is degrees
QUJITBT/ track or TMG on a map or chart to a station: True heading to be steered by the
aircraft, with no wind, to head for the direction-finding station is ... Degres.
Remember:
Winds are always True. Aerodrome METAR and ATIS winds are Magnetic.
Runway heading is always Magnetic.
Track and TMG is always True, unless othervwise stated in the question . ATS Routes are
Magnetic.
TMG RIGHT OF HEADING, DRIFT STARBOARD
TMG LEFT OF HEADING, DRIFT PORT
TMG RIGHT OF TRACK REQUIRED, TRACK ERROR IS STARBOARD
TMGLEFT OF TRACK REQUIRED, TRACK ERROR IS PORT
Heading: The direction in which aircraft longitudinal axis is aligned / nose is pointed.
TMG= H£D
TMG =RT± TE
Starboardand (+),Port subtract ()
RelativelADF/Radio Compass/NDB Bearing: Bearing from the longitudinal/fore and aft axis
(heading) of the aircraft to the station.
QDM =QDR ± 180°
True Trk to go to stn. (QUJ) = HDG (T) + RB
Mag Trk to go to stn. (QDM) = HDG (M) + RB
QUJ=QDM + Variation
True bearing from stn. (QTE) = QUJ t 180°
QTE= QDR + Variation
MBT/F=MH+D
For Starboard Drift use (+).Port(-)
Heading is Magnetic in this case.
Incase of True Heading. Bearing To/From will be True
MBT=MH+RB
Heading is Magnetic in this case.
In case of True Heading, Bearing To will be True
If the resutt is 360°, subtract 360° from the figure.
If the figure has a negative value, add 360°.
Reciprocal Heading
Tofind reciprocalof a heading if the heading is equal to or more than (2) 180°. subtract
180°. If less than (<) 180°. add 180
Relative Bearing (R.B.)= L.S.R. t Q.c.
Bearing Accuracy:
Class A= +2°,Class B = +5°, ClassC = + 10 .Class D = more than 10°
Position Accuracy:
Class A= + 5NM,Class B=+2ONMs. Class C =+ 50NMs,ClassD = more than 50NMs
REVISION EX:TRACK AND DRIFT
QUESTIONS
Q1. An alc is flying away from station on a magnetic heading of 030".RBI is showing 185°,
find track and drift
Q2 A/C is flying away from station on atrack of 200° with 10° S drift Find heading and RB
indication
Q3. After flying for 2 hrs at G/S of 80 kts, ADF shows 168°., Hdgof alc is 090° if the
remaining time to go to station is 2 hrs. Find:
() New hdg to reach station.
(ü) Track required from departure.
Q4. After flying for 180 nm on a hdg of 200° ADF shows 186°,if remaining distance, to go to
destination is 120 nm, find new hdg to the station.
Q5. An A/Cis flying hdg with 12°Sdrift and makinggood a track 5 nm to the left of centre
line of the airway but parallel to it Find RB of NDB situated at centreline of the airway 30 nm
ahead.
Q6. An A/C is flying a constant hdg with 12°P drift and waking good a track. 5 nm to the
right of centre line. Find ADF reading for NDB situated on centre and 30 nm behind.
Q7. An alc is flying a constant heading with 8°S drift and making good a track 5 nm to the
right. of centreline of an airway but parallel to it. Find ADF reading from an NDB situated on
the centreline of air-way 30 nm ahead
Q8. An alc is flying aconstant hdg with 5° S drift making good a track 5nm to centreline of
airways but to left of centreline. Find ADF reading from NDB situated 30nm ahead of
centreline.
09.. Compass heading 270°, Deviation 2°W,Variation 30°E, Relative bearing 316°. VWhat is
the QDR?
Q10. The inbound track to NDB is 075° (T), Variation 10° W, drift 7° Right. The relative
bearing to maintained on the radio compass to reach NDB is:
Q11. An aircraft is "homing" to a radio beacon whilst maintaining arelative bearing of zero. If
the magnetic heading decreases, the aircraft is experiencing
Q12.. An island is observed by weather radar to be 15° to the left. The aircraft heading is
120°(M) and the magnetic variation 17°W. What is the true bearing of the aircraft from the
island?
a) 302°
b) 268°
c) 088°
d) 122°
13.. A ground feature was observed on a relative bearing of 315° and 3 MIN later on a
relative bearing of 270°. The WW is calm, aircraft GS 180 kts. What is the minimum distance
between the aircraft and the ground feature?
a) 12 NM
b) 9 NM
c) 3 NM
d) 6 NM
14. Aground feature was observed on a relative bearing of 325° and five minutes later on a
relative bearing of 280°. The aircraft heading was 165°(M), variation 25°N, drift 10°Right and
GS 360 kts. When the relative bearing was 280°, the distance and true bearingof the aircraft
from the feature was:
a) 40 NM and 290°
b)40 NM and 110°
c) 30 NM and 240°
d) 30 NM and 060°
