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时间:2010-05-28 02:08来源:蓝天飞行翻译 作者:admin
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while on an unpublished route or being radar
vectored:
a)Complies with the minimum altitude for IFR.
b)Maintains last assigned altitude until established
on a segment of a published route or
InstrumentApproach Procedure (IAP), at which time
published altitudes apply.
42.4.2Controller
42.4.2.1Issues an approach clearance based on
known traffic.
42.4.2.2Issues an IFR approach clearance only after
aircraft is established on a segment of published route
or IAP; or assigns an appropriate altitude for the
aircraft to maintain until so established.
42.5Missed Approach
42.5.1Pilot
42.5.1.1Executes a missed approach when one of
the following conditions exist:
a)Arrival at the missed approach point (MAP) or
the decision height (DH) and visual reference to the
runway environment is insufficient to complete the
landing.
b)Determines that a safe approach or landing is
not possible (see ENR 1.5 paragraph 26.7).
c)Instructed to do so by ATC.
42.5.1.2Advises ATC that a missed approach will be
made. Include the reason for the missed approach
unless initiated by ATC.
42.5.1.3Complies with the missed approach instructions
for the IAP being executed from the MAP,
unless other missed approach instructions are
specified by ATC.
42.5.1.4If executing a missed approach prior to
reaching the MAP, fly the lateral navigation path of
the instrument procedure to the MAP. Climb to the
altitude specified in the missed approach procedure,
except when a maximum altitude is specified
between the final approach fix (FAF) and the MAP. In
that case, comply with the maximum altitude
restriction. Note, this may require a continued
descent on the final approach.
42.5.1.5Following a missed approach, requests
clearance for specific action; i.e., another approach,
hold for improved conditions, proceed to an alternate
airport, etc.
ENR 1.1−62 AIP
15 MAR 07 United States of America
Nineteenth Edition Federal Aviation Administration
42.5.2Controller
42.5.2.1Issues an approved alternate missed
approach procedure if it is desired that the pilot
execute a procedure other than as depicted on the
instrument approach chart.
42.5.2.2May vector a radar identified aircraft
executing a missed approach when operationally
advantageous to the pilot or the controller.
42.5.2.3In response to the pilot’s stated intentions,
issues a clearance to an alternate airport, to a holding
fix, or for reentry into the approach sequence, as
traffic conditions permit.
42.6Radar Vectors
42.6.1Pilot
42.6.1.1Promptly complies with headings and
altitudes assigned to you by the controller.
42.6.1.2Questions any assigned heading or altitude
believed to be incorrect.
42.6.1.3If operating VFR and compliance with any
radar vector or altitude would cause a violation of any
Federal Aviation Regulation, advises ATC and obtain
a revised clearance or instruction.
42.6.2Controller
42.6.2.1Vectors aircraft in Class A, B, C, D, and
E airspace:
a)For separation.
b)For noise abatement.
c)To obtain an operational advantage for the pilot
or the controller.
42.6.2.2Vectors aircraft in Class A, B, C, D, E, and
G airspace when requested by the pilot.
42.6.2.3Vectors IFR aircraft at or above minimum
vectoring altitudes.
42.6.2.4May vector VFR aircraft, not at an ATC
assigned altitude, at any altitude. In these cases,
terrain separation is the pilot’s responsibility.
42.7Speed Adjustments
42.7.1Pilot (In U.S. Domestic Class A, B, C, D,
and E airspace)
42.7.2Except as stated in paragraphs 42.7.5 and
42.7.6, advises ATC anytime the true airspeed at
cruising level varies or is expected to vary by plus or
minus 10 knots or 0.02 Mach number, whichever is
less, of the filed true airspeed.
42.7.3Complies with speed adjustments from ATC
unless:
42.7.3.1Except as stated in paragraphs 42.7.5 and
42.7.6, advises ATC anytime the true airspeed at
cruising level varies or is expected to vary by plus or
minus 10 knots or 0.02 Mach number, whichever is
less, of the filed true airspeed.
42.7.3.2Complies with speed adjustments from
ATC unless:
a)The minimum or maximum safe airspeed for
any particular operation is greater or less than the
requested airspeed. In such cases, advises ATC.
b)Operating at or above 10,000 feet MSL on an
ATC assigned SPEED ADJUSTMENT of more than
250 knots IAS and subsequent clearance is received
for descent below 10,000 feet MSL. In such cases,
 
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