calculating distance along a DME arc

[B767Driver]

Originally Posted by aloft

Of course, this is only useful for intercepting the final approach course if you're flying with GPS and there's a waypoint where the arc and the final approach course meet. .

You can't fly a dme arc without dme. It's perfectly useful for getting established on the arc...and intercepting final you'd need to use the lead radial.

[bluelake]

Originally Posted by ricecakecm

I should probably know this, but why would anybody care what the distance they've gone around a DME arc is? I mean, is there any practical application for this?

TonyC's practical application seems to have answered this (and Tony.. apoligies for not seeing your clear reply in the earlier thread..) and as well, it is a question that has been recently asked by an interview board for which I get to be in front of in two weeks. Is that practical enough???

[B767Driver]

As a matter of practical application...I use the 60:1 rule most often when using the weather radar. The weather radar beam is 3 degrees wide...so a weather return 60 miles ahead is at least 3 miles or 18000' tall. If you can find the zero tilt position for your altitude...then note the change in upward radar tilt...you can estimate how high above you the thunderstorm tops are.

[ricecakecm]

Originally Posted by bluelake

TonyC's practical application seems to have answered this (and Tony.. apoligies for not seeing your clear reply in the earlier thread..) and as well, it is a question that has been recently asked by an interview board for which I get to be in front of in two weeks. Is that practical enough???

I guess that's practical enough. I've gone through 4 pilot interviews and gotten hired 4 times, a bunch of checkrides, and a bunch of writtens, and never been asked to figure out how far I've gone around an arc (or at least I don't remember being asked).

Good luck on your interview.

[bluelake]

Originally Posted by ricecakecm

I guess that's practical enough. I've gone through 4 pilot interviews and gotten hired 4 times, a bunch of checkrides, and a bunch of writtens, and never been asked to figure out how far I've gone around an arc (or at least I don't remember being asked).

Good luck on your interview.

thanks. hopefully go well. I will be the DME EXPERT...