1:60 RULE
1. After travelling 150 nm, a/c pin points itself 7 nm off track. Find drift.
2. A/c is to go 440 nm and pin points itself 4 nm off track. Find drift applied.
3. A/c from ILS approach 10 nm from threshold on 2.8° glide slope. Find height of the
aircraft, if a/c is on the same glide path till the approach.
4. A/c with ground speed of 175 kts on 4.5° ILS glide slope. Find rate of descend to
maintain the same slope.
5. You are approaching Delhi on a glide slope of 5.5° at a ground speed of 120kts. What
ROD is required to maintain the glide slope?
6. Approaching Kolkata, an aircraft decreases speed from 180 kts to 150 kts. What change
in the ROD must be made to maintain the glide slope?
7. Approaching at an airfield, the threshold elevation of runway 09 is 96 ft; the threshold
elevation of runway 27 is 205 ft. If runway length is 8000 ft, what is the slope of Runway
09 in degrees?
8. You are flying along an airway to VOR/DME ‘Q’; the airway QDM is 271°. Your radio
magnetic Indicator indicates your QDM to Q as 266°, range 48 nm. How far are you off
the airway centerline and to which side?
9. Over position A, an aircraft sets heading for B, a ground distance of 80 nm. After
travelling 30 nm along track, the pilot fixes the aircraft at position C, 5 nm Port of track.
Find out the track to reach B if initial track was 300.
10. An aircraft tracking 270° at ground speed 180kts. At 1000 hrs, an airfield bears 358°. At
1006 hrs, the same airfield bears 004°. Estimate your range from the airfield.
11. You are on an ILS approach to Mumbai using the ideal glide slope. If your ground speed
is 140 kts, what ROD is required to maintain the glide slope?
12. Approaching at an airfield, the threshold elevation of runway 28 is 700 ft; the threshold
elevation of runway 10 is 150 ft. If runway length is 7700 ft, what is the slope of Runway
10 in degrees?
13. A/c wing tip bearing changes from 125° to 150° in 12 min. Find out distance to station, if
a/c ground speed is 150 kts.
14. Find of ROD of an aircraft, approaching 27 runway if approaching speed is 160 kts with
the ideal glide angle.
15. A/c wing tip bearing at 1200hrs was 005 and at 1212 bearing was 020. If TAS is 90 kts,
find out distance to reach at station.
16. VOR is showing 3 dot deflection to right, and DME indication is 15 nm. Calculate the
distance of an aircraft from the selected radial.
17. A/c on flight from Baramati to Indore. Distance is 257 nm. After travelling 170 nm, a/c
pinpoints itself 7° away from the track to right. Find new track to Indore, if original track
was 030.
18. A/c is flying constant heading with 8° P drift making good a track parallel to the
centerline of airway but 7 nm to right. Find ADF reading from NDB situated 30 nm
ahead.
19. A/c is flying constant heading with 5° P drift making good a track parallel to the
centerline of airway but 5 nm to left. Find ADF reading from NDB situated 20 nm ahead.
20. A/c is flying on radial 150 inbound from a station 75 nm ahead. OBS setting is 340. Find
out a/c distance from the selected radial.
