On Sat, 2 Feb 2008 14:55:17 -0500, "Kyle Boatright"
wrote in
:

if you're having to rely on
instruments to determine up vs down, are you really VFR?

It would seem to me, that day or night if you're operating in VMC you
can do so under VFR. I'm not aware of a regulation that requires a
horizon for VFR operation.

That said, on moonless nights over sparsely populated areas like the
Mojave Desert it's not uncommon to find yourself scanning the
instruments as you scan for traffic.