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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.

1 vote
1 answer
341 views

How does a pilot communicate with ATC during a hijacking?

How does a pilot communicate with ATC during a hijacking?
Arunabh's user avatar
  • 121
0 votes
0 answers
26 views

How does a winglet affect aircraft performance? [duplicate]

Winglets are small vertical surfaces attached to the wingtips. They help to reduce the drag caused by vortices at the wingtips, thus improving fuel efficiency. Source How does a winglet affect ...
Arunabh's user avatar
  • 121
3 votes
1 answer
98 views

Missing position (lat/lon) in ADSB data

I would like to ask if anyone has encountered latitude longitude (Data Item 021/130) missing in ADSB data, specifically in asterix cat 21. In addition to the mandador entries, there is also geometric ...
adam beno's user avatar
2 votes
1 answer
93 views

How to calculcute variation and compass deviation in this CDMVT problem?

Usually I can solve CDMVT problems, but sometimes I feel I'm missing something important. For example: I'm able to solve: Given WCA -012, TH 125, MC 139, DEV 002E. What are TC, MH and CH? ...
Mandal Vomva's user avatar
3 votes
2 answers
189 views

Engineless Blimp Navigation System

I understand wind direction can vary in a column of air? With only altitude control on a blimp to navigate for long flights, a blimp in theory could navigate without engines. In order to take real ...
Justintimeforfun's user avatar
-1 votes
1 answer
79 views

Can we use leaf shutter mechanism as a drone dropping mechansim for payload weight of 3lbs?

I'm considering implementing a drone payload drop mechanism capable of handling payloads weighing up to 3lbs. I'm intrigued by the idea of using a leaf shutter mechanism for this purpose, but I haven'...
Ujjwal's user avatar
  • 7
4 votes
1 answer
87 views

Question about MOCA and MEA

Why is there sometimes a MOCA on the chart and sometimes only an MEA? In the picture, there's only an MEA until BAGBY, and then MOCA appears after BAGBY. Do you know why this is happening?
user75593's user avatar
0 votes
1 answer
60 views

Question about V25 route's MOCA

I found something curious about the V25 route on the en-route low altitude chart. Before LAPED, there was no MOCA indicated, only an MEA of 9000. Why does MOCA 6500 appear after LAPED?
user75593's user avatar
0 votes
2 answers
107 views

The nav accuracy during SID and STAR

Does anybody knows is there any document where is described the nav accuracy during STAR and SID? I mean, how far can I deviate from the path as much as possible?
Michael Lindon's user avatar
1 vote
1 answer
347 views

Can this plane make it to an airport after dual engine failure?

If you are flying to the most remote airport(according to simple flying most remote airport is Mataveri International Airport), while flying on a typical airliner with normal weather, in the event of ...
Gabe's user avatar
  • 3,536
1 vote
1 answer
51 views

How can the derivative of the geodetic angles (lat, lon) be expressed by the Velocities in the NED-Frame?

I have found in the book "Unmanned Rotorcraft Systems" following expressions (eqn. 2.25 and 2.26). https://www.newbooks-services.de/MediaFiles/Texts/4/9780857296344_Excerpt_002.pdf $\lambda$...
Christian Mändle's user avatar
9 votes
5 answers
591 views

Do GPS coordinates of a fixed point in space ever change?

As I understand, GNSS uses the WGS84 model of the earth to pin-point points in 3D space. However, once the GPS coordinates of a point in space have been determined (say a GPS waypoint), do it's ...
PapaMike99's user avatar
2 votes
2 answers
303 views

Unusual pattern over English Channel

I have just spotted this Beechcraft flying an unusual pattern over the English Channel (late at night). It has no call sign etc. I'm thinking maybe a military aircraft looking for illegal migrant ...
Hew Williams's user avatar
8 votes
1 answer
197 views

ADIRU Mounting in Avionics Rack

If I understand correctly, navigational gyroscopes and accelerometers are located within the ADIRU boxes themselves. In order to initialise during aircraft startup, they must be mounted precisely ...
natanijelvasic's user avatar
0 votes
1 answer
161 views

What is the name of the dotted line that shows the predicted turn radius, found on the Navigation display of the 738

What is the name for the white dotted line that stretches out from the aircraft on the navigation display, when the aircraft enters a turn? It shows the aircrafts predicted flight path.
bok1942's user avatar

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