Baron Man wrote:
1. what's a VDP and how does one compute it.

Visual Descent Point. If there's one published for the approach (ie. on the
chart), don't descend visually below the MDA until you pass that point. If
there's none published, you can compute one for yourself as a convenience. How
to compute it is a matter of personal preference. You probably want to compute a
VDP that will give you about a 3 degree descent.

2. how many phases of an approach (IAP) and how do you tell each from the
other

Initial, intermediate, final, and maybe missed(?). Are those considered
"phases"? Dunno.

3. what's a GRID MORA

Minimum Off-Route Altitude. Don't know about the "GRID". Probably a reference to
the lat-lon grid on your enroute chart. There's a MORA for each quadrangle.

4. what's a THINGS

Don't know.

5. what's the min ATC separation under IFR

Good question. I should know this, but I don't.

6. drift-down?

What a feather does. :-)

Dave
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