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comply with the maximum airspeed restriction
should notify ATC.
(3) Holding patterns at USAF airfields
only − 310 KIAS maximum, unless otherwise
depicted.
(4) Holding patterns at Navy fields only −
230 KIAS maximum, unless otherwise depicted.
(5) When a climb−in hold is specified by a
published procedure (e.g., “Climb−in holding
pattern to depart XYZ VORTAC at or above 10,000.”
or “All aircraft climb−in TRUCK holding pattern to
cross TRUCK Int at or above 11,500 before
proceeding on course.”), additional obstacle protection
area has been provided to allow for greater
airspeeds in the climb for those aircraft requiring
them. The holding pattern template for a maximum
airspeed of 310 KIAS has been used for the holding
pattern if there are no airspeed restrictions on the
holding pattern as specified in subparagraph j2(b)(2)
of this paragraph. Where the holding pattern is
restricted to a maximum airspeed of 175 KIAS, the
200 KIAS holding pattern template has been applied
for published climb−in hold procedures for altitudes
6,000 feet and below and the 230 KIAS holding
pattern template has been applied for altitudes above
6,000 feet. The airspeed limitations in 14 CFR
Section 91.117, Aircraft Speed, still apply.
(c) The following phraseology may be used
by an ATCS to advise a pilot of the maximum holding
airspeed for a holding pattern airspace area.
PHRASEOLOGY−
(AIRCRAFT IDENTIFICATION) (holding instructions,
when needed) MAXIMUM HOLDING AIRSPEED IS
(speed in knots).
AIM 8/5/04
5−3−12 En Route Procedures
FIG 5−3−4
Holding Pattern Entry Procedures
3. Entry Procedures. (See FIG 5−3−4.)
(a) Parallel Procedure. When approaching
the holding fix from anywhere in sector (a), the
parallel entry procedure would be to turn to a heading
to parallel the holding course outbound on the
nonholding side for one minute, turn in the direction
of the holding pattern through more than 180 degrees,
and return to the holding fix or intercept the holding
course inbound.
(b) Teardrop Procedure. When approaching
the holding fix from anywhere in sector (b), the
teardrop entry procedure would be to fly to the fix,
turn outbound to a heading for a 30 degree teardrop
entry within the pattern (on the holding side) for a
period of one minute, then turn in the direction of the
holding pattern to intercept the inbound holding
course.
(c) Direct Entry Procedure. When approaching
the holding fix from anywhere in
sector (c), the direct entry procedure would be to fly
directly to the fix and turn to follow the holding
pattern.
(d) While other entry procedures may enable
the aircraft to enter the holding pattern and remain
within protected airspace, the parallel, teardrop and
direct entries are the procedures for entry and holding
recommended by the FAA.
4. Timing.
(a) Inbound Leg.
(1) At or below 14,000 feet MSL: 1 minute.
(2) Above 14,000 feet MSL: 11/2 minutes.
NOTE−
The initial outbound leg should be flown for 1 minute or
1 1/2 minutes (appropriate to altitude). Timing for
subsequent outbound legs should be adjusted, as
necessary, to achieve proper inbound leg time. Pilots may
use any navigational means available; i.e. DME, RNAV,
etc., to insure the appropriate inbound leg times.
(b) Outbound leg timing begins over/abeam
the fix, whichever occurs later. If the abeam position
cannot be determined, start timing when turn to
outbound is completed.
5. Distance Measuring Equipment (DME)/
GPS Along Track Distance (ATD). DME/GPS
holding is subject to the same entry and holding
procedures except that distances (nautical miles) are
used in lieu of time values. The outbound course of
the DME/GPS holding pattern is called the outbound
leg of the pattern. The controller or the instrument
approach procedure chart will specify the length of
the outbound leg. The end of the outbound leg is
determined by the DME or ATD readout. The holding
fix on conventional procedures, or controller defined
holding based on a conventional navigation aid with
DME, is a specified course or radial and distances are
8/5/04 AIM
En Route Procedures 5−3−13
from the DME station for both the inbound and
outbound ends of the holding pattern. When flying
published GPS overlay or stand alone procedures
with distance specified, the holding fix will be a
waypoint in the database and the end of the outbound
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