What is this ND showing?

[teopereira 25]

 

Taken from this very interesting blog: http://jethead.wordpress.com/2010/12/11/one-pilots-perspective-737-vs-md80/

[Captain Kevin 586]

Terrain maybe?

[willywonka 36]

Looks like terrain.

[Capt Speirs 52]

Looks like he's playing "Space Invaders"

[77west 139]

That might be Airports, VOR's or other similar items.

[Lukas_Mathijsen 41]

Looks like terrain to me.

[19dcavscout 39]

Not to go off topic a bit, but thanks also for sharing that article. It was a really enjoyable read.

[scandinavian13 5,192]

Terrain.

 

You can see it on the left of the display.  It's showing:

Airports

Terrain

[Hi Alt Filter]

[Low Alt Filter]

TCAS OFF

[teopereira 25]

Terrain.

 

You can see it on the left of the display.  It's showing:

Airports

Terrain

[Hi Alt Filter]

[Low Alt Filter]

TCAS OFF

wow... didn't know it was possible to filter the terrain. What is the purpose of this filter?

[JoeDiamond 67]

wow... didn't know it was possible to filter the terrain. What is the purpose of this filter?

It's not a filter as such, the numbers indicate the maximum and minimum terrain values displayed.

[KriVa 307]

Aren't fixed obstacles also included in the database (at least, in real life)?

[scandinavian13 5,192]

 

 

What is the purpose of this filter?

 

 

It's not a filter as such, the numbers indicate the maximum and minimum terrain values displayed.

 

Joe answered it for me, mostly.

 

Basically, it's not a user configurable filter. It's the system filtering the display so that it only shows terrain data that's relevant to the crew. By relevant to the crew, I mean objects/terrain that may affect the flight.

 

Think about it:

You could set the system up to display a TOPO-like map at all times, but it would clutter the display:

 

Peaks mode only takes the elevations that are relevant to the flight. As an example, even if I was flying over that mountain range, if I was 20,000 feet above the highest peak, it really doesn't affect me. If I was down within a 3,000 feet of the peaks, it might, so the display will just show the peaks that might be close. Again, in an effort to keep the display clean.

[JoeDiamond 67]

Aren't fixed obstacles also included in the database (at least, in real life)?

Our newer jets include man-made obstacles in the database, the older ones don't.

[KriVa 307]

I thought I saw the same on our displays a while ago (jn real life), thanks Joe!