On Aug 13, 3:55*pm, Mxsmanic wrote:
writes:
If visibility is 4.5 miles, you are by defininition in IMC.

Are you always solely on instruments, or is there any reason to be
on instruments at all, with a visibility of 4.5 miles?

If you're in IMC, you need to be on instruments. *At 4.5 miles, you're only
60-90 seconds away from not being able to see anything. *Are you ready for
that?

Hard experience has taught the aviation industry that just being clear of
low-visibility weather isn't enough; you have to keep a safety margin between
you and that weather. *That means that you have to be on instruments once
you're inside that margin. *If you wait until you really can't see anything,
it might be too late, especially if you are unprepared.

Are you always solely on instruments, or is there any reason to be
on instruments at all, with a visibility of 2.5 miles?

If you're in IMC, you need to be on instruments. *In IMC, instruments become
your final reference, no matter what you see out the window. *When visibility
drops, instruments are your exclusive reference, no matter what you feel.

You are, in this thread, at an intellectual and experience
disadvantage. You asserted a requirement to be in instruments in IMC:
that is wrong.

EVERY current instrument rated pilot does transitions between
reference to instruments and outside reference. We do it on take off,
en route, on approach, and on the miss in actual. That you don't
understand that, that it is outside your experience, does not make it
not true. You have typed yourself into a corner, and now are looking
for a way to regain some creditability, and it is not working.