2 Questions, Radio Navigation
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Join Date: Nov 2006
Location: Stockholm
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2 Questions, Radio Navigation
Hi
Im going through the VOR chapter in Radio Navigation. I would be pleased if someone of you could explain and help with these 2 questions.
Question 1
An aircraft is on the airway bondary range 100nm from a VOR marking the airway centre line. Assuming that each dot equates to 2 degrees, how many dots deviation will be shown on the deviation indicator?
A) 3.0 dots
B) 2.5 dots
C) 2.0 dots
D) 1.5 dots
Correct answer is: D
Question 2
An aircraft is required to intercept and home to a VOR along the 064 Radial. The OBS should be set to:
A) 064 to get correct needle sense and a TO indication.
B) 244 to get correct needle sense and a TO indication.
C) 064 to get correct needle sense and a FROM indication.
D) 244 to get correct needle sense and a FROM indication.
Correct answer is: B
Thanks
/M
Im going through the VOR chapter in Radio Navigation. I would be pleased if someone of you could explain and help with these 2 questions.
Question 1
An aircraft is on the airway bondary range 100nm from a VOR marking the airway centre line. Assuming that each dot equates to 2 degrees, how many dots deviation will be shown on the deviation indicator?
A) 3.0 dots
B) 2.5 dots
C) 2.0 dots
D) 1.5 dots
Correct answer is: D
Question 2
An aircraft is required to intercept and home to a VOR along the 064 Radial. The OBS should be set to:
A) 064 to get correct needle sense and a TO indication.
B) 244 to get correct needle sense and a TO indication.
C) 064 to get correct needle sense and a FROM indication.
D) 244 to get correct needle sense and a FROM indication.
Correct answer is: B
Thanks
/M
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mx4, if you battle with the second question, here's an easy way of remembering how to set up the OBS to intercept a radial.
I always teach FROM -> top TO -> bottom. Meaning:
If you intercept a radial to fly FROM a station, then the radial you wish to intercept must be on the TOP of the OBS, and a FROM indication must be showing.
If you wish to intercept a radial TO a station, then the radial ou wish to intercept must be set on the BOTTOM of the obs... i.e set the reciprocal on the top of the obs, and a TO indication must be showing.
FROM TOP, TO BOTTOM.
Helped me!
I always teach FROM -> top TO -> bottom. Meaning:
If you intercept a radial to fly FROM a station, then the radial you wish to intercept must be on the TOP of the OBS, and a FROM indication must be showing.
If you wish to intercept a radial TO a station, then the radial ou wish to intercept must be set on the BOTTOM of the obs... i.e set the reciprocal on the top of the obs, and a TO indication must be showing.
FROM TOP, TO BOTTOM.
Helped me!
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Although it's fair to assume for the sake of an exam that the OBS is set to the airway track, the problem with question 1 is that it does not specify what the OBS is set to. Therefore, it is impossible to say what the needle will indicate.
