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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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1answer
186 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 ...
7
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1answer
2k views

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
403 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
93 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
113 views

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 ...
13
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1answer
1k views

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....
56
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8answers
11k views

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: ...
0
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1answer
134 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?
0
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1answer
160 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 ...
0
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1answer
104 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
108 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
102 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
352 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
203 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 ...
3
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1answer
1k 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. ...
2
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1answer
78 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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2answers
138 views

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 ...
13
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1answer
1k views

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.
2
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2answers
270 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 ...
3
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2answers
324 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.
5
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1answer
292 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
179 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 ...
0
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1answer
129 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
196 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 ...
0
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1answer
137 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
175 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 ...
0
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1answer
98 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
430 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
313 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
6
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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
283 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
264 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 ...
2
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1answer
197 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 ...
-1
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1answer
181 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 ...
-1
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4answers
588 views

Should I fly the true bearing or the magnetic bearing?

If you have a true bearing (track) drawn on your map but at the same time you have the magnetic bearing (as worked out from the true bearing and variation), which do you follow? the true bearing on ...
4
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2answers
322 views

Has this type of "gyrocompass" ever been used in an aircraft?

One type of instrument commonly referred to as a "gyrocompass" is commonly used in ships. It detects true north based on gyroscopic precession, and is not slaved to any magnetic compass or any ...
2
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1answer
1k views

What are the differences between FANS A, B, and C? Is FANS C commissioned?

For the Future Air Navigation System, what are the differences between FANS A, B, and C? Is FANS C commissioned?
0
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4answers
265 views

What should a pilot do if he does not know where he is and has no form of communication? [closed]

I know this is an almost impossible situation, but... Imagine that a pilot is kidnapped and placed inside a Cessna plane. At a certain point the kidnapper jumps out of the plane, destroying the radio ...
13
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3answers
3k views

Can astronavigation be used during flight?

In an aircraft, can you look at the sky to get your bearing and position like sailors do?
0
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0answers
90 views

What is P-RNAV?

I came across the term P-RNAV. What is P RNAV, and what are the differences from 'standard' Area Navigation(RNAV)? Is there a specific set of requirements for P RNAV?
4
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1answer
130 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 ...
2
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0answers
205 views

Can RNP AR APCH be defined as NPA or APV or PA?

How to define RNP AR APCH as a Non-Precision Approach / Approach with Vertical Guidance / Precision Approach? or it varies when complying with different standards just like RNP APCH? or it's ...
4
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1answer
185 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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3answers
2k views

Are helicopter pilots required to use GPS navigation?

Some helicopter crashes are caused by a disoriented pilot. This would presumably be impossible with a GPS with terrain maps. Are pilots required to use a GPS when flying a helicopter in the US?
4
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3answers
2k views

What is a rhumb line?

Can anyone explain what a rhumb line is and how it is different from the great circle route? This what the internet says: Rhumb lines are tracks with a constant track direction between two points ...
0
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1answer
243 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?
7
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1answer
186 views

Why don't hyperbolic navigation transmitters on the surface (e.g. Loran-C) allow altitude measurement?

I have been reading the following article about radio navigation in general and GPS / GLONASS receiver design: A homemade receiver for GPS & GLONASS satellites in which the author states the ...
0
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2answers
109 views

With current technology, why is there still increased separation between aircraft and delays in low visibility conditions?

Since most (if not all) commercial aircraft are equipped with inertial and satellite/GPS navigation, why is increased separation between aircraft necessary? Can't controllers immediately identify the ...

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