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时间:2010-05-25 22:02来源:蓝天飞行翻译 作者:admin
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operating in or transiting a Class B, Class C, Class D,
or Class E surface area when the primary airport is
reporting VFR but the pilot advises that basic VFR
cannot be maintained.
NOTEThe
basic requirements for issuance of a SVFR clearance
in subpara a apply with the obvious exception that weather
conditions at the controlling airport are not required to be
less than basic VFR minima.
7-5-2. PRIORITY
a. SVFR flights may be approved only if arriving
and departing IFR aircraft are not delayed.
EXAMPLE-
1. A SVFR aircraft has been cleared to enter a Class B,
Class C, Class D, or Class E surface area and subsequently
an IFR aircraft is ready to depart or is in position to begin
an approach. Less overall delay might accrue to the IFR
aircraft if the SVFR aircraft is allowed to proceed to the
airport and land, rather than leave, a Class B, Class C,
Class D, or Class E surface area or be repositioned to
provide IFR priority.
2. A SVFR aircraft is number one for takeoff and located
in such a position that the number two aircraft, an IFR
flight, cannot taxi past to gain access to the runway. Less
overall delay might accrue to the IFR aircraft by releasing
the SVFR departure rather than by having the aircraft taxi
down the runway to a turnoff point so the IFR aircraft could
be released first.
NOTEThe
priority afforded IFR aircraft over SVFR aircraft is not
intended to be so rigidly applied that inefficient use of
airspace results. The controller has the prerogative of
permitting completion of a SVFR operation already in
progress when an IFR aircraft becomes a factor if better
overall efficiency will result.
b. Inform an aircraft of the anticipated delay when
a SVFR clearance cannot be granted because of IFR
traffic. Do not issue an EFC or expected departure
time.
PHRASEOLOGYEXPECT
(number) MINUTES DELAY, (additional
instructions as necessary).
REFERENCEFAAO
JO 7110.65, Para 2-1-4, Operational Priority.
FAAO JO 7110.65, Para 5-6-1, Application.
JO 7110.65S 2/14/08
7-5-2 Special VFR (SVFR)
7-5-3. SEPARATION
a. Apply approved separation between:
1. SVFR aircraft.
2. SVFR aircraft and IFR aircraft.
NOTEApproved
separation between SVFR fixed-wing aircraft,
and between SVFR fixed-wing aircraft and IFR fixed-wing
aircraft, is prescribed in Chapter 6 and Chapter 7,
para7-5-4, Altitude Assignment. Radar vectors are
authorized as prescribed in para 5-6-1, Application,
subpara f.
b. Alternate SVFR helicopter separation minima
may be established when warranted by the volume
and/or complexity of local helicopter operations.
Alternate SVFR helicopter separation minima shall
be established with an LOA with the helicopter
operator which shall specify, as a minimum, that
SVFR helicopters are to maintain visual reference to
the surface and adhere to the following aircraft
separation minima:
1. Between a SVFR helicopter and an arriving
or departing IFR aircraft:
(a) 1/2 mile. If the IFR aircraft is less than
1mile from the landing airport.
(b) 1 mile. If the IFR aircraft is 1 mile or
more from the airport.
2. 1 mile between SVFR helicopters. This
separation may be reduced to 200 feet if:
(a) Both helicopters are departing simultaneously
on courses that diverge by at least 30 degrees
and:
(1) The tower can determine this separation
by reference to surface markings; or
(2) One of the departing helicopters is
instructed to remain at least 200 feet from the other.
NOTERadar
vectors are authorized as prescribed in para 5-6-1,
Application.
REFERENCEFAAO
JO 7110.65, Para 2-1-4, Operational Priority.
7-5-4. ALTITUDE ASSIGNMENT
Do not assign a fixed altitude when applying vertical
separation, but clear the SVFR aircraft at or below an
altitude which is at least 500 feet below any
conflicting IFR traffic but not below the MSA
prescribed in 14 CFR Section 91.119.
PHRASEOLOGYMAINTAIN
SPECIAL V-F-R CONDITIONS AT OR
BELOW (altitude).
NOTE-
1. SVFR aircraft are not assigned fixed altitudes to
maintain because of the clearance from clouds
requirement.
2. The MSAs are:
(a) Over congested areas, an altitude at least 1,000feet
above the highest obstacle, and
(b) Over other than congested areas, an altitude at least
500 feet above the surface.
(c) Helicopters may be operated at less than the
minimum altitudes prescribed in (a) and (b) above.
REFERENCEFAAO
JO 7110.65, Para 2-1-4, Operational Priority.
FAAO JO 7110.65, Para 5-6-1, Application.
 
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