Formula for Distance from VOR
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Formula for Distance from VOR
Can anyone tell me the formula that is used to calculate distance from the VOR by turning and crossing the radials?
SureCan anyone tell me the formula that is used to calculate distance from the VOR by turning and crossing the radials?

Time to Station = Time to Cross Radials in Seconds / Number of Radial Crossed
or if you wish
Distance to station = ( GS x Time in Minutes ) / Degree of Bearing Change
"A good traveller has no fixed plan and is not intent on arriving." -Lao Tzu
- Cat Driver
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- Cat Driver
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From what I've heard,a lot of VfR/IFR tower units have disabled their VDF in favour of radar......so if you have an issue, dial up 126.7, and ask for help, or dial up nearest ARTCC and sqwuak IDENT.
I've heard this happen to a buddy, pre-PPL, got stuck above a layer, called up London radio, got the freq for YYZ atc, and got on radar, vectors for home.
When I was instructing, I made it a point to ensure any students going for a 'walk outta the zone' had an idea how to cope with FIC and YYZ ATC
I've heard this happen to a buddy, pre-PPL, got stuck above a layer, called up London radio, got the freq for YYZ atc, and got on radar, vectors for home.
When I was instructing, I made it a point to ensure any students going for a 'walk outta the zone' had an idea how to cope with FIC and YYZ ATC
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I figured someone would istp.....
What I was trying to point out is don't get to involved in mental mastrubation when going through the exam thing....
Because a lot of it is Alice in wonderland stuff, that you " should " never need to know.
What I was trying to point out is don't get to involved in mental mastrubation when going through the exam thing....
Because a lot of it is Alice in wonderland stuff, that you " should " never need to know.
The hardest thing about flying is knowing when to say no
After over a half a century of flying no one ever died because of my decision not to fly.
After over a half a century of flying no one ever died because of my decision not to fly.
Doc wrote:
Amazing that someone had to actually use this in this day and age. I would really like to have him post the full story including where it happened and when.
That is so 20th Centruy. The correct anser is tune the GPS to the VOr and read the numbers.Turn on the DME? I'm sorry, I couldn't help it...
Amazing that someone had to actually use this in this day and age. I would really like to have him post the full story including where it happened and when.
yeah, a far more relevant question might be:
Another sly (and relevant!) question would be:You are cleared direct to VOR XYZ, which is 180 nm distant. You are at 8,000 AGL. Because you are unable to receive the VOR signal at that altitude, you request a vector from ATC until able direct via your own nav. At what distance from the VOR would you expect to start receiving at signal from it?
1) 90nm
2) 110nm
3) 130nm
4) 150nm
I guess it's too much to ask, to have useful questions on tests.When is too much altitude a problem for VOR reception?
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When is too much altitude a problem for VOR reception?
Just curious Hedley, but is too much altitude a problem when one begins to pick up signals from another VOR with the same frequency? No doubt the zone of ambiguity would be greater directly overhead the VOR at high altitudes. Correct?
Thanks for getting the rusty wheels turning again!
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Thanks for getting the rusty wheels turning again!
- MG -
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Hey Cat,
ya agreed, "should" never need to know, unfortunately does not translate into "do" need to know for exams.
I have just done my JAR ATPL airlaw and human factors exams after 26 years of flying, and 7 years 747 command,
let me tell you, about 99 % is "dont" need to know stuff, but all the same, its there!!
Do we use it day to day, real world? nope.
truth is the guys writing the exams are hardly real world people.
ya agreed, "should" never need to know, unfortunately does not translate into "do" need to know for exams.
I have just done my JAR ATPL airlaw and human factors exams after 26 years of flying, and 7 years 747 command,
let me tell you, about 99 % is "dont" need to know stuff, but all the same, its there!!
Do we use it day to day, real world? nope.
truth is the guys writing the exams are hardly real world people.
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Yeh Seawings, how well I know.
A few years ago I wrote the FAA Comercial Gyroplane Pilot License exam.
There were seven... seven!!! questions on time and distance problems using the ADF.....
Makes one wonder if the idiots who write these exams have figured out that in the twenty first century it is highly unlikely we will be fu.king around with finding distance to a station using the ADF....
PS:
You an expat in the UAE??
A few years ago I wrote the FAA Comercial Gyroplane Pilot License exam.
There were seven... seven!!! questions on time and distance problems using the ADF.....
Makes one wonder if the idiots who write these exams have figured out that in the twenty first century it is highly unlikely we will be fu.king around with finding distance to a station using the ADF....
PS:
You an expat in the UAE??
The hardest thing about flying is knowing when to say no
After over a half a century of flying no one ever died because of my decision not to fly.
After over a half a century of flying no one ever died because of my decision not to fly.
- Cat Driver
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You are truly that brain dead a pilot????If it weren't for the crap questions and lousy answer options on the TC tests there'd be no way in hell I'd be the pilot I am today!

The hardest thing about flying is knowing when to say no
After over a half a century of flying no one ever died because of my decision not to fly.
After over a half a century of flying no one ever died because of my decision not to fly.
- Cat Driver
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Shhhhh LH....
Before you can find the cone of silence you have to use the 90 degree fade method of orientation to get headed in the correct direction...
Maybe someone who designs these exams for Transport can put that one in the exams....
Every bit as useful knowlege as the time and distance stuff they want you to know now.
Before you can find the cone of silence you have to use the 90 degree fade method of orientation to get headed in the correct direction...
Maybe someone who designs these exams for Transport can put that one in the exams....
Every bit as useful knowlege as the time and distance stuff they want you to know now.

The hardest thing about flying is knowing when to say no
After over a half a century of flying no one ever died because of my decision not to fly.
After over a half a century of flying no one ever died because of my decision not to fly.