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Instrument IQ — October/November 2019

By John Montgomery | October 1, 2019

Estimated reading time 3 minutes, 4 seconds.


Test your instrument flight rules (IFR) proficiency and sharpen your piloting skills with this exclusive Skies feature! Examine the following approach plate and take your best shot at the accompanying questions:

Campbell River, B.C. (CYBL)
Departure Procedures


Instrument IQ test

Click the question to see the answer

1.You are planning to depart RWY 12 at CYBL at a time when the FSS is operating. How is takeoff minimum visibility determined?
Since RWY 12 is runway visual range (RVR) equipped this would be the primary means, followed by the accredited observer. PIC does not qualify as a legal means in this situation.

2.Relative to the above, your initial climb groundspeed is expected to be 100 knots. What initial minimum rate of climb is needed to meet the obstacle clearance criteria?
By referring to the table, this converts to a rate of climb of 435 feet per minute until 600 feet ASL. 

3.Relative to the above, what becomes the required climb gradient upon passing through 600 feet ASL?
It now reverts to the standard climb gradient of 200 feet per NM.

4.If your aircraft is unable to realize the above climb gradient, might you still be able to depart RWY 12? If so, by what means?
 Yes, we may be able to depart via SPEC VIS. 

5.If planning to depart SPEC VIS with a climb speed of 100 KIAS, what minimum ceiling and visibility are required to legally depart?
Minimum ceiling = 1000 feet; Minimum visibility category B = 1½ SM. 

6.Is a General Aviation Approach Ban a possibility if conducting an instrument approach to RWY 12?
Yes, this runway is equipped with an RVR Transmissometer. 

John Montgomery is the founder and president of Professional Flight Centre in Delta, B.C., which was established in 1986. A 12,000-hour ATPL pilot and Multi IFR instructor, John also specializes in ground school and seminar instruction. John can be reached at

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