Exercises

IFR Hold Exercise - Answer

Situation Recap:

You are on course 000.

You are cleared to a Standard Hold inbound on the VOR 000 radial.

You will intercept the inbound radial at 0 degrees and you will reach intercept
precisely when you arrive at the VOR.

 

Answer:

You positioned the OBS with the Tail on: 180   The correct answer is 000.  

Which way do you turn to intercept the inbound radial?
The correct answer is Left. You said  

The course to intercept the VOR 000 radial inbound at a 0 degree intercept is 000 degrees.
This is the direct course to the VOR.   You said 000 degrees  

The entry procedure to establish the hold should be: Parallel   You said:  

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Explanation:

Outbound Track
P - Parallel Entry
O - Offset Entry
D - Direct Entry

The OBS on the HSI must be aligned to point to the reciprocal of the requested VOR radial (in this case inbound on the 000 radial) which would place the arrow head at 180 degrees and the tail on the requested radial 000 degrees.  
(Rule of thumb: Inbound Bottom - Outbound Top)

You were instructed that the intercept will be 0 degrees on one side of 180. The CDI (Course Deviation Indicator) tells you which side of the track you will have to fly to intercept the radial and the "To" "From" indicator tells you where the VOR is located. In this case the deviation is indicated to the side so you have to add 0 degrees from the intended inbound track of 180 which is 000 degrees. The shortest route to 000 from your current course of 000 is Left 0 degrees. The shortest route is always 180 degrees or less.

The hold is established using the "POD" rule displayed above. In the aircraft, you must Imagine the rule overlaid on the HSI as pictured above. The aircraft heading is straight up. For a standard hold, "P" is on the left.
You must visualize the outbound track on the HSI (indicated in Red in our example). Whichever sector the outbound track falls in indicates which entry to the hold you should use. In this question, the Parallel entry is required.

Hold Entry
Standard Parallel Entry

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