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airport. It is essential that pilots conducting parachute
operations be alert, look for other traffic, and
exchange traffic information as recommended in
paragraph 4−1−9, Traffic Advisory Practices at
Airports Without Operating Control Towers. In
addition, pilots should avoid releasing parachutes
while in an airport traffic pattern when there are other
aircraft in that pattern. Pilots should make
appropriate broadcasts on the designated Common
Traffic Advisory Frequency (CTAF), and monitor
that CTAF until all parachute activity has terminated
or the aircraft has left the area. Prior to commencing
a jump operation, the pilot should broadcast the
aircraft’s altitude and position in relation to the
airport, the approximate relative time when the jump
will commence and terminate, and listen to the
position reports of other aircraft in the area.
3−5−5. Published VFR Routes
Published VFR routes for transitioning around, under
and through complex airspace such as Class B
airspace were developed through a number of FAA
and industry initiatives. All of the following terms,
i.e., “VFR Flyway” “VFR Corridor” and “Class B
Airspace VFR Transition Route” have been used
when referring to the same or different types of routes
or airspace. The following paragraphs identify and
clarify the functionality of each type of route, and
specify where and when an ATC clearance is
required.
a. VFR Flyways.
1. VFR Flyways and their associated Flyway
Planning Charts were developed from the recommendations
of a National Airspace Review Task Group.
A VFR Flyway is defined as a general flight path not
defined as a specific course, for use by pilots in
planning flights into, out of, through or near complex
terminal airspace to avoid Class B airspace. An ATC
clearance is NOT required to fly these routes.
AIM 2/19/04
3−5−6 Other Airspace Areas
FIG 3−5−1
VFR Flyway Planning Chart
2/19/04 AIM
Other Airspace Areas 3−5−7
2. VFR Flyways are depicted on the reverse side
of some of the VFR Terminal Area Charts (TAC),
commonly referred to as Class B airspace charts. (See
FIG 3−5−1.) Eventually all TACs will include a VFR
Flyway Planning Chart. These charts identify VFR
flyways designed to help VFR pilots avoid major
controlled traffic flows. They may further depict
multiple VFR routings throughout the area which
may be used as an alternative to flight within Class B
airspace. The ground references provide a guide for
improved visual navigation. These routes are not
intended to discourage requests for VFR operations
within Class B airspace but are designed solely to
assist pilots in planning for flights under and around
busy Class B airspace without actually entering
Class B airspace.
3. It is very important to remember that these
suggested routes are not sterile of other traffic. The
entire Class B airspace, and the airspace underneath
it, may be heavily congested with many different
types of aircraft. Pilot adherence to VFR rules must
be exercised at all times. Further, when operating
beneath Class B airspace, communications must be
established and maintained between your aircraft and
any control tower while transiting the Class B,
Class C, and Class D surface areas of those airports
under Class B Airspace.
b. VFR Corridors.
1. The design of a few of the first Class B
airspace areas provided a corridor for the passage of
uncontrolled traffic. A VFR corridor is defined as
airspace through Class B airspace, with defined
vertical and lateral boundaries, in which aircraft may
operate without an ATC clearance or communication
with air traffic control.
2. These corridors are, in effect, a “hole”
through Class B airspace. (See FIG 3−5−2.) A classic
example would be the corridor through the Los
Angeles Class B airspace, which has been subsequently
changed to Special Flight Rules airspace
(SFR). A corridor is surrounded on all sides by
Class B airspace and does not extend down to the
surface like a VFR Flyway. Because of their finite
lateral and vertical limits, and the volume of VFR
traffic using a corridor, extreme caution and vigilance
must be exercised.
FIG 3−5−2
Class B Airspace
3. Because of the heavy traffic volume and the
procedures necessary to efficiently manage the flow
of traffic, it has not been possible to incorporate VFR
corridors in the development or modifications of
　
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