[net.aviation] logging instrument time

Dave.Touretzky%CMU-CS-A@sri-unix.UUCP (06/23/83)

If a VFR pilot gets a special VFR clearance, he is still flying VFR, i.e.
controlling the airplane by use of visual references.  At least, let's hope
he's using visual references, because if he isn't he's in violation.
Remember that SVFR requires you to remain clear of clouds at all times.  It's
true that controllers treat special VFR differently, e.g.  they will only
allow one aircraft in the CZ at a time if that aircraft is operating
special VFR, but that has nothing to do with logging time.

To log actual instrument time you must control the aircraft SOLELY by
reference to instruments.  That means either being in cloud, or being in
conditions such that there is no visible horizon, e.g.  on top of an
overcast in very hazy conditions, or over the ocean at night.

So even if you're an IFR pilot operating on an IFR flight plan in a control
zone with less than 3 miles visibility, if you can see the ground and make
out a horizon, you can't log the time as actual instrument conditions.

-- Dave Touretzky, CFI-A, IGI

dwl@hou5e.UUCP (06/29/83)

	Let's clarify a few terms:
	VFR does not imply or require that the aircraft be flown by
visual references!  VISUAL FLIGHT RULES require that the flight be
conducted in weather conditions meeting the VFR minimums for the
airspace in which it is operating.  They apply to any flight where
Air Traffic Control is not relied upon to provide separation.  It is
perfectly legal to fly under visual flight rules while navigating by
VOR, and maintaining aircraft attitude by reference to flight
instruments.  (It is also required that the pilot or a safety pilot
be able to see and avoid other air traffic.)

	IFR means that Air Traffic Control is assuming the
responsibility for separating the flight from other IFR traffic.  It
does not require that the flight be in instrument meteorological
conditions.  It is perfectly legal to fly under Instrument Flight
Rules, with an ATC clearance, and navigate visually.  Separation
from VFR traffic remains the pilot's responsibility, as it is in VFR
flight.

	Instrument time may be logged when flying without visual
references, whether or not the flight is conducted under IFR.  An
instrument rating is only required for operation under IFR.  
 
	Flight time under IFR but in visual conditions may not be
logged as instrument time.

-Dave Levenson
-ABI, Holmdel