On May 30, 5:28*pm, Bob wrote:
Hello,

Am not a pilot, but was wondering about this.

In commercial aviation, and I guess for private flying also, when
directions are given, are they assumed to be True or Magnetic ?

What do pilots use these days for direction ?
I assume a gyro compass of some sort but am not sure. *Is this correct ?
If so, is this Magnetic or True ?

I can't believe they spend the effort converting from one to another.
Do they ?

Are chart roses they use shown as True or Mag. ?

What's in the cockpit ?
Do they still have a Mag. compass there ?

Any thoughts would be most appreciated.

Thanks,
Bob

Winds aloft are given with true, but we use magnetic for aviation/
navigation. We have magnetic compasses in the cockpit, and we set the
DG to correspond to it. Part of most preflight checklists, especially
instrument flight rules flights, is (or should be) to verify that the
magnetic compass is working. Nav compass roses are magnetic on the
charts we use.