Questions tagged [navigation]

Navigation is the process of planning and controlling travel from one location to another. There are many methods of navigation using different techniques and instruments.

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4
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2answers
178 views

Do large cities contain enough iron to significantly affect an aircraft's magnetic compass?

In most areas of the world, the magnetic compass is the ultimate heading reference. Although pilots look to the directional gyro most of the time when flying (because the directional gyro's reading ...
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1answer
174 views

Does SkyVector's flight plan give wrong magnetic variation corrections?

Lately I have noticed that Skyvector's Flight Planning tool "Nav Log" has been showing very wrong magnetic variation corrections for particular legs of my flight plans. The corrections ...
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1answer
184 views

How do you realign a directional gyro in an area of magnetic unreliability?

The primary means of determining heading in most small aircraft is the directional gyro, as this instrument is unaffected by the magnetic dip errors that cause a magnetic compass to give the wrong ...
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1answer
77 views

What are all the different ways pilots can navigate?

What are all the different ways pilots can navigate? What are they in simple terms and their unique advantages/disadvantages? EX: Dead-reckoning? VOR? GPS? ATC Directives? Others?
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3answers
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Is it possible to fly to any destination on a rhumb line track?

If we follow a constant rhumb line track, it would eventually lead to the pole (depending on your hemisphere) , so then it may not be possible to fly between any two points on a rhumb line track? ...
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3answers
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Explaining a "Great Circle Route" to young Civil Air Patrol cadets

What would be an easily understood explanation of a "Great Circle Route" for young Civil Air Patrol cadets who are being introduced to aviation and navigation principles for the first time?
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216 views

How does IRS estimate the alignment time?

In modern airliners, e.g. A320, once the IRS is starting the alignment process, there is an ECAM message that indicates the alignment time, e.g. ...
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2answers
244 views

Does the radial needle of a HSI automatically deflect to the correct position when tuning the NAV radio to a localizer / ILS?

At least on small aircraft, the HSI is slaved to the NAV1 radio. The NAV1 radial is selected with a small knob of the HSI. Now, when I want to fly an ILS approach I don't need to set a radial myself ...
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2answers
172 views

What are these 3 stages of twilight?

The extreme left is Day and Extreme Right is Night. In between are those Civil twilight, Nautical and Astronomical Twilight ?
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1answer
157 views

What are those polygons on the Garmin avionics navigation display?

I'm not pilot yet, just an enthusiast having some fun in MSFS2020. What do those colored lines mean in Garmin avionics?
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1answer
146 views

Can single engine/smaller aircraft turn off ADS-B?

I was just looking at the adsbexchange website, and was wondering if it was possible for smaller, private aircraft to turn off their ADS-B? I was wondering this because id figure that maybe not ...
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What navigation actions does a pilot take when simply told to "go around"?

In this recording of ATC during the 2008 crash of a British Airways Boeing 777 at London Heathrow the controller is heard to say "Qatari 011, go around". How would the pilot of Qatari 011 ...
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1answer
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What is the meaning of this "Navigational Warning" and does it apply to the aviation industry? [closed]

This was posted at https://sattrackcam.blogspot.com/2021/09/an-upcoming-trident-ii-d5-slbm-test-in.html Th blog post notes something as a "navigational warning". A few days ago a ...
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Are there two navaids on the same frequency close enough to be confused?

Several RTCA DO standards require checks for bad navaid tuning including, "In lieu of using ground-based navigation aid designated operational coverage (DOC), the system should provide, checks ...
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1answer
194 views

How many degrees deviation from the defined final course can I have to start the descent?

To do a VOR, ILS or RNP approach, I am turning to establish the final approach course. The approach chart shows I should descend to a lower altitude for intercepting the final descent path. So, my ...
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1answer
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Why does my distance calculation not match the distance given in the definition of a danger area?

I'm looking at the definition of a danger area in an AIP section "ENR 5.1 Prohibited, restricted and danger areas", and it's the following. ...
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4answers
420 views

Can a private pilot land at any category of airport?

I'm aware that commercial pilots require special training for landing at Category C airports (e.g. Innsbruck), but I was wondering if, as a private pilot I could land at an airport such as this, ...
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1answer
106 views

Is there a regulation that defines when to use QFE or QNH for landing?

Is there an EASA regulation that says to use QFE or QNH when landing?
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2answers
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How to figure unusable sectors if the VOR is not colocated at/near an airport?

Stemming from Why am I not getting the "TO" VOR flag as I think I should? If a VOR is not colocated at an airport (i.e. not in that airport's chart supplement page), how does one figure out ...
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1answer
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Why am I not getting the "TO" VOR flag as I think I should?

I would appreciate some insight as to what I’m doing wrong or missing. I just completed a XC flight practicing VOR/GPS Navigation. I was inbound to KLOL from KRNO with the lovelock VOR frequency (116....
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8answers
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Why don’t airplanes use turn signals?

Why don’t airplanes use turn signals like cars do? Would this improve safety for ground operations at uncontrolled airports? Could a similar concept be used to indicate in air maneuvers? For example: ...
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1answer
177 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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1answer
204 views

How does the heading selector on the ADF work?

How does the ADF indicator work in terms of pointing the needle in the direction of the NDB signal? I understand that the ADF needle points towards the direction of the NDB signal for a given ...
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1answer
109 views

How do I calculate the impact of the winds aloft in this test question?

I was flying through this section in the ASA test prep book, I thought I had mastered this E6B. But this has me stumped: I can’t do the math to figure out how many knots I’ve traveled. But in the ...
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2answers
130 views

Help reading a FAA departure procedure chart

I was hoping to get a few answers regarding how to read a FAA departure procedure chart. Let's take the JUDTH SEVEN DEPARTURE chart shown below: From what I can tell, it seems that the diagram in ...
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1answer
118 views

What is the difference between a navigation database and an airport mapping database?

What is the difference between "navigation database" and "airport mapping database"? Are those both required by flight management software for flight planning?
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4answers
459 views

How can I estimate wind speed and direction in VFR?

I am new here, I started to do VFR navigation (no G1000) so I try to deal with the wind. I notice that I have some problems to find the wind speed and direction during flight. I am going to try to ...
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3answers
253 views

Why don't the magnetic compass and direction indicator spin the same direction?

You set a direction indicator (DI) based on the magnetic compass in certain GA aircraft, e.g. Cessna 172. During training you're taught how to align the DI with the compass, the DI being the opposite ...
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1answer
2k views

What is the difference between IAN and LNAV/VNAV?

Is there a real difference or benefit in using Integrated Approach Navigation (IAN) instead of LNAV/VNAV for a non-precision approach (NPA)? Both give you lateral and vertical guidance during an NPA. ...
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1answer
79 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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VFR Navigation, rerouting timing corrections due to wind - rule of thumb?

Consider this reroute on a VFR nav trip from Great Malvern to Chipping Norton. Maintaining 120 TAS. Track 110 °M Heading 103 °M (taking 3/4 of Max Drift - MD) In still air this 30nm section would take ...
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1answer
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Why are true headings followed above 73N in the northern hemisphere, whereas in the southern hemisphere the change is made at 60S?

The question is in regards to the asymmetry of the changeover latitudes and NOT about why it needs to be changed.
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344 views

When not cleared straight in for a VOR approach, how is this type of procedure executed?

You are flying to the GDM VOR on a 097 heading. The ATC clears you for the approach, but does not specify straight in. The procedure turn is marked by the barb and specifies remaining within 10nm. My ...
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2answers
373 views

Why is the NAV ADR 1 ECAM caution a NO GO as per the MEL on the A320?

There isn't much more I can post about the question but in the MEL out of the 3 ADRs if ADR 1 fails on ground the MEL doesn't allow for a dispatch.
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1answer
297 views

Why are the MSA direction needles not oriented to north?

Why is it when you look at an MSA the arrows are pointed opposite of where they should be?
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1answer
183 views

Do navigation databases (by e.g. Aeronavdata or Jeppesen) include company routes?

Does the navigation database provided by database providers like Aeronavdata or Jeppesen etc include company routes? How are the company routes maintained; are they modifiable by the OEMs? Is the ...
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1answer
141 views

What do the Airway Letters and the following numbers mean? [duplicate]

For example, from RCTP - ZGGG the route is AJENT MKG A1 ANPOG R200 GLN W22 IDUMA via the AJENT SID to the IDUMA STAR. What does "A1 or R200 or W22" mean? Are they just randomly allocated letters with ...
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1answer
244 views

What is meant by Manual Tuning of ADF/NDB using BFO? [duplicate]

As NDB transmission is either N0NA1A(requires BFO to be turned on for Manual Tuning, Identification and Monitoring) or N0NA2A(BFO turned on only for Manual Tuning). My question is what exactly is ...
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1answer
145 views

Why are heading in PFD and map off by exactly 10 degrees? [duplicate]

I was flying on my X-plane 11 flight simulator today and noticed something quite unsettling. This was a VFR flight between KIAD and KDCA. I pulled up my map for reference and noticed I was flying ...
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1answer
178 views

What was the normal flight path for a passenger aircraft from New York to Miami in 1955?

What was the normal flight path a passenger aircraft would have flown from New York to Miami in 1955? Like Pan American, flight 914.
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6answers
1k views

Is there a more specific term than 'flight line' for straight lines flown during flight?

I work for a small software startup, where its just my boss and I. Prior to this job, I had no experience with aircraft. We have a client that uses our software to fly a pattern over an area, where ...
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1answer
99 views

Do pilots pilots keep track of their groundspeed, by head?

For VFR nav. flights, do pilots have to keep track of their groundspeed, by head (done so by considering wind speed, wind direction, crosswind, tailwind etc.)? And the purpose of this, is to check ...
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4answers
557 views

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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2answers
431 views

Do VOR's follow true north on a chart? [duplicate]

Although VOR stations follow magnetic north, do VOR's on a chart follow true north?
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1answer
38 views

How do I know when to read a number as (for example) 241 or 24.1 off the navigation computer?

How do I know in what way I should read a number off the naviagtion computer scale on the slide rule side? Eg. 241 and 24.1
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3answers
2k views

For general aviation small aircraft flying VFR under 10,000 feet, can I use my phone GPS for navigation in the US?

For general aviation small aircraft flying VFR under 10,000 feet, can I use my phone GPS for navigation in the US? So no onboard GPS (which are expensive), no VOR/DME, of course there is always dead ...
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1answer
346 views

Does the nearest function on a G1000 allow for listing of anything other than nearest airports?

In non G1000 GPS systems, I have seen several pages for selecting the nearest airport, VOR, NDB, intersections, and waypoint, but in a G1000, I can only seem to get a listing of the nearest airport, ...
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2answers
349 views

Boundary Markers of European Airspace

As in previous question I am trying to transpose a geospatial data format from within a EUROCONTROL application into something I understand, like decimal lat-lon. An answer to my previous question ...
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1answer
255 views

Reference Map of EUROCONTROL charging zones

I'm building out an application to calculate EUROCONTROL navigation fees. EUROCONTROL make one of these already, but I need to replicate the functionality within my own stack. In the aforementioned ...
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1answer
210 views

When and how might a pilot use the 1-in-60 rule and the 10 degree drift rule for off track error corrections?

Okay, this is a 3 part question. How would you use the 1 in 60 rule, in the air - in flight? When would you use the 10° drift line way and when would you use the 1 in 60 rule way? With reference ...

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