Compound wind problems

STUDENT GUIDE

VISUAL NAVIGATION

10. On a low level flight two minutes prior to your next turn point your inbound course is

180 and temperature is 27. You calculated the wind to be from your 12 o'clock and 20 knots.

The outbound course is 090. The proper heading and airspeed for the two minute prior call is

and

Knots.

11. Flying a base airspeed of 300 knots you cross a checkpoint at 12 + 49 preflighted for 12

+ 36. You make the standard speed correction. At time 17 + 49 you realize the correction was

not taken out. Assuming error is due to course deviations for weather, what is your correction to

get back on time?

12. Compensations are 2 right crab and airspeed minus 5 kts tailwind. At your last turn

point you were 1 NM right of course and on time. At your next intermediate checkpoint you fix

yourself NM right of course and 7 seconds slow. Assuming 5 minutes between intermediate

check points, what is the new wind in clock 'code and knots?

13. Two minutes prior to the turn point, inbound course is 076 and temperature is 27.

Winds are from 7 o'clock and 15 knots. The outbound course is 051. The proper heading and

and

Knots.

airspeed for the two minute prior call is

14. The fix over a road intersection is at time 9 + 06. Preflight planning indicated the

intersection would be at your 9 o'clock, NM at time 9 + 21. If TAS is 300 knots and aircraft

heading is 293 you should initiate your correction by turning to a heading of

and setting

a speed of

Knots.

15. Compensations are 2 right crab and airspeed minus 15 kts tailwind. At your last

intermediate checkpoint you were on course and on time. At your next intermediate check point

you fix yourself 1 NM right of course and 8 seconds slow. Assuming 7 minutes between

intermediate checkpoints, what is the new wind in clock code and knots?

16. The T-1A aircraft crosses an intersection at time 15+18. The chart shows the

intersection on course with an original time of 15+00. At the previous fix (9+00), the aircraft

was on time. With a current compensated airspeed of 295, what is the new compensated

airspeed, and what is the appropriate correction?

New Air Speed:___________

Accelerate/Slow to ___________ IAS for _____ + ______.

17. (Refer to question 16.) After applying the above correction at 16+00, what is the

updated time for a turn point that was planned for 18+00?

18. (Refer to question 17.) You have just crossed over the turn point referenced in question

17 at time 18+09. When will your correction be taken out?

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