Questions tagged [vor]

VOR (VHF Omnidirectional Range) is a radio navigation technology used by aircraft to determine their position and remain on-course.

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66 views

When I use a plotter to identify a direction from a VOR, what heading or course is it exactly?

When I use my ASA IFR plotter and I'm working off a VOR, what direction am I getting? True course, true heading, magnetic heading, magnetic course?
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54 views

How does a VOR or a VORDME affect the coding decision between CF or IF-TF respectively?

I was reading of the following case in ARINC 424-17 spec. Unfortunately the image is copyrighted and I can't paste it here, so here is a low(er) quality image of mine replicating the situation: The ...
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4answers
151 views

Selecting radials for radial interception

I’m a beginner in intrument flying so sorry for my ignorance. Few months ago I was doing BIR training and with my CFI we were intercepting radials, we were doing that on HSI (Garmin G500). He told me ...
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333 views

Is using a VOR considered IFR or VFR?

As the title mentioned. And also, is using it in zero visibility (or near) a real life scenario?
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67 views

What are the units for the bearing to center of an airport from radio aids to navigation in chart supplement?

Is the bearing to the center of airport for a radio aid to navigation in the chart supplement, true course, magnetic course, is it based on the VOR's radials, or is it something else?
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What radial is the aircraft crossing?

I'm working through the ASA Private Pilot 2020 Test Prep questions and there's a question I don't understand the answer for. 3579 (Refer to Figure 28, illustration 5) The VOR receiver has the ...
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1answer
162 views

If the VOR works and the TACAN works, why doesn’t the VORTAC work?

Here https://www.tailstrike.com/270680.htm is the transcript of the CVR of the Itavia Flight 870 (Ustica Massacre), but some communications have been omitted; I’ll use this site: http://www....
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132 views

What button do I push on the instrument panel to activate DME in VOR navigation? [closed]

For some strange reason I cannot seem to find any information about what button to push on the instrument panel to active the DME. There is plenty of information about how DME works with ...
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169 views

Is it allowed and possible to hold at the intersection of two VOR radials using a single VOR receiver?

First of all, is it permitted? I am practicing VOR tracking on my simulator and the missed approach procedure (KLGB VOR 30) takes you out to an intersection off two VOR radials. Since the plate doesn'...
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57 views

What if you approach the VOR station such that your turn OB is not on the holding side?

I'm reviewing the Sporty's ground school for VOR approaches, and their example shows the approach to the VOR station then heading OB as tracking on the holding side. What if you approach the VOR ...
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Do we need to know the true track to a VOR?

An aircraft can lock onto the location of a VOR and we can see the QDM (magnetic bearing to the station) to the VOR. If this is the case, do we still need to know the true track of that route? And if ...
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347 views

Where does the Garmin G1000 Nav ID come from?

If you tune in a NAV frequency into your G1000 the ID of the Nav Aid will be shown next to the frequency after some time. In this example SEA: Source: http://...
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116 views

Can I do a dual VOR check on the ground?

I know that the regs are ambiguous on the subject, but does anyone have a good argument as to why or why not you can do a dual VOR check on the ground if the VOR signal is good? For my particular ...
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107 views

Having trouble reading some charts (SBMG-SBLO)

I'm a flight sim user practicing instrument navigation with a short and apparently simple flight, SBMG to SBLO (South America). The distance between the two airports is 49.5 nautical miles (the ...
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1answer
163 views

Just how inaccurate are (Las Vegas) VOR radials?

I was discussing VOR-based navigation with a pilot, and he mentioned that VOR doesn't provide a very high level of integrity and safety (at least, compared to GPS or DME). He explained that the FAA ...
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165 views

What's the difference between a Sole Means Navigation System and a Primary Means Navigation System? [closed]

For bonus points, how you define a supplemental means navigation system?
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What is the difference between a non-directional signal and an omidirectional signal from a radio aid?

NDB's are non directional and VOR's are omnidirectional. What is the difference between a signal that is non directional and a signal that is omidirectional, if any?
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478 views

What turn to intercept a radial and how to tune in B737ng sim?

Forgive my very amateur questions, I have been out of flying for years now and I am getting fit to fly again after slight setback. I have an opportunity of doing some refresher flying in 737NG ...
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102 views

What official government document should a pilot check to determine what magnetic north a VOR was set to when it was commissioned?

Today I learned that VOR stations are all set to magnetic north at the time of commission, and since magnetic north moves, the VOR is not necessarily in-line with magnetic north in the present. Where ...
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253 views

Why does this VOR's compass has an arrow pointing north east?

The VOR compass here has an arrow that points to the north east. I never saw an VOR compass like that. What is the explanation?
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181 views

Why does the Hinch Mountain VOR (as an example) have void areas below certain altitudes published in the U.S. Chart Supplement?

I was digging around the SE region Chart Supplement, and I was reading KSRB (Sparta, TN), and this "VOR unusable" listing is contained in it: The sectional chart shows that it is nearly on top of a ...
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174 views

How does the ICAO VOR separation apply to reciprocal radials?

If two aircraft are on VOR radials that are apart by 15 degrees or more and one aircraft is at least 15 DME out, they are considered laterally separate. I read this rule in ICAO documents but my ...
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188 views

Is a VOR usable on the ground when it's located at a higher elevation than the receiver?

According to the AIM 1-1-8, a VOR can be usable at an altitude below the altitude where the VOR is. But the figure only shows the VOR service volume down to zero feet AGL: Where I fly, the VOR is at ...
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How do I do these VOR time and distance calculations?

I'm trying to figure out the calculation to these questions: A pilot tracking a VOR turns 90 degrees from current heading. The pilot notes that it takes 3.0 minutes for the plane to intercept the ...
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What does the letter “D” next to the VOR frequency and name mean?

In most charts there is the letter D next to the VOR freq. What does this mean? I assume the H and L in brackets in other charts mean high and low VORs (correct me if im wrong). But what does the D ...
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What are the VOR channels used for?

I'm looking at different VORs on a sectional chart and I see the frequencies but I also see a channel number associated with them as well. What are these channel numbers and how do you use them?
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Calculating distance from VOR station with radial and heading

I am currently struggling to understand the following question regarding a VOR station and an aircraft. The aircraft is found in the 30 degree radial from the VOR station at time T(1) and T(2). During ...
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Are NDBs and VORs dying as a navigational method?

I am new to aviation, so bear with me on this question: I have read in multiple places that the VOR/NDB navigational aids are dying out to GPS. Is this true? Are more modern aircraft being built with ...
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1answer
743 views

Why wouldn't KJFK offer the ILS for 22L?

(Source: Flightradar24) The above was from last Sunday around 17z. I was watching FR24 with the ATC feed. The airport was operating in 'arrival priority' with approaches to both 13L (Canarsie) and 22L....
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How do I determine which radial intercept angle to use?

I'm studying for the (EASA) Instrument Rating exam and I found several questions about radial intercept angles in sample exams but nothing in the books I've studied and my flight instructor doesn't ...
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209 views

TFR based on an invisible VOR?

A new TFR was recently published, which references the Riverside (RIS) VOR/DME. When I look at the relevant chart in SkyVector, I don't see such a VOR in that area. When I put the ID "RIS" into ...
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Is VOR identification automated in modern avionics?

Is the VOR identification via audible Morse code automated in modern autopilots / avionics? Or does a pilot in an A380 still sits in there, listens and compares the .-. .. -.. to her charts?
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Does an aircraft equipment suffix denote how many VOR radios are installed?

I'm studying IFR. Does an aircraft equipment suffix specify if and how many VOR radios are installed? I'm guessing that the suffix is used by ATC to know if they can give you an RNAV or a an approach ...
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906 views

Is my understanding of magnetic variation and declination (for a VOR) correct?

AIXM (the XML-based exchange model for AIP by Eurocontrol and european AIS) defines the following properties for a VOR: codeTypeNorthA code indicating the ...
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1answer
468 views

How does one reverse direction on a VOR radial?

Tracking inbound, say on R-270, how do I track outbound on the same R-270? What intercept heading shall I fly?
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501 views

Could a pilot navigate using distances and radials from an RNAV waypoint, similar to VOR navigation?

I know that typically RNAV navigation involves a list of waypoints, and the aircraft simply flies from one point to the next. What I'm curious about is if a procedure could be developed (as a special ...
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548 views

What are the differences between VORTAC's and NDB's?

What are the differences between VORTAC's and NDB's?
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What is the VOR reference signal?

What is the VOR (VHF Omnidirectional Range) reference signal? I have to calculate the spectrum of this signal.
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219 views

Are VOR frequencies static?

I am a brand new student pilot pursuing my private cert. I don't need to know this for a while, but I'm trying to learn about VOR navigation to enjoy my sim flights more, in the meantime. My ...
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291 views

Do UAVs use ground-based navaids?

When I Googled it seems it is not common to use Vortac like systems from UAVs as a backup to GNSS outages, like in manned aircraft. And also I haven't seen any equipment designed for just UAV ...
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Why is there a grid below the antennas of an VOR?

A few days ago I made a trip to the VOR-DME near my local airport LOWG, because I always wanted to see one. It's GRZ on 116.2. When I was there, I wondered why there is a giant metal grid under the ...
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405 views

Why is there a GPS/RNAV waypoint co-located with a VOR?

There is an RNAV waypoint named STYCK co-located at what appears to be the exact location of the LOA VOR (coordinates match precisely as well). Why would the creation of a waypoint be necessary if IFR ...
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How can pilots use receiver function of VOR during lost comms? [duplicate]

In the event of lost comms, are pilots encouraged to try the receiver of the VOR nearby if the VOR provides the function? If they are, what's the proper use of the VOR receiver? Just tune in the VOR ...
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747 views

Are nearest VOR stations always tuned to?

I am flying under IFR. My current leg route is Z401. I am between TIPRU and VOR VLM (VLASIM). I am on inbound radial 304° VLM: This is an RNAV route. But let us imagine it is non-RNAV and I am ...
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Can a pilot use their GPS/FMS to fly a VOR or NDB approach?

GPS is more accurate than a VOR or NDB signal. Can we use a GPS to fly a VOR or NDB approach from the initial approach fix through the missed approach and hold? I know there are two types of ...
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1answer
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Do some modern VORs not spin? [duplicate]

Today in Ground School we learned about radio navigation. I read here that the rotating part of the VOR rotates at 1,800 RPM (wow! Is it an electric motor that spins it?) We know that modern Active ...
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How wide is the cone of confusion above a VOR and NDB?

I saw in book that the cone of confusion of VOR is 40 degrees, and NDB is 50 degrees of each side! Isn't it too much? Maybe it's a mistake, or old information(book printed in 2004) Clarify please: ...
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1k views

Why do we have to manually tune VOR receivers?

As the VOR frequency is automatically selected when the DME is selected, under what system conditions is manual tuning of the VOR required? (aviation-safety-bureau.com)
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What causes the phase to change in a VOR?

I get the light house analogy, and how the VOR essentially works, although I'm wondering what actually causes this phase shift? As it hits magnetic north the variable and reference signal are in phase,...
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VORTAC symbol over KMOT airport - is the small dot the center?

I am looking at KMOT and I see a little dot over the airport symbol, is that the center of the VORTAC?