Update correction orbits based on the data from previous orbits. Remember, your
displacement from the station will make precise wind corrections more difficult at an
Continue to monitor the time. Be sure to update to the EFC time five minutes prior to the
When cleared out of Intersection Holding, you may turn direct to the intersection and
begin an immediate acceleration to cruise airspeed.
Procedure (ONE NAV RECEIVER)
Using the same example:
Intersection Holding using one NAVAID is very similar to Intersection Holding using
two NAVAIDS. However, in this case, you will be using a single NAV receiver to
monitor both the primary and secondary NAVAIDS.
Three to five minutes prior to reaching the holding intersection ensure the secondary
NAVAID is tuned and identified to check your position.
Your entry turn is determined in the same manner as any other holding pattern. At the
intersection (when the CDI centers), perform the 6 Ts. When established wings level
on the outbound heading, begin timing for one minute and ensure the primary
NAVAID is tuned and identified, twist in the holding course (90º) in the CDI, and
check the VOR/TACAN switch in the appropriate position.
At the completion of one minute outbound timing, turn to intercept the holding radial
inbound to STUDY. Remember, a large intercept angle may be required to establish
the aircraft on the holding radial inbound to STUDY intersection. Once an intercept is
established inbound to STUDY intersection, prepare to identify the intersection.
Tuning the secondary NAVAID, setting the VOR/TACAN switch to the appropriate
position and setting the CDI to a course to identify the intersection should be
completed no later than 30 seconds after rolling wings level inbound to the
intersection. Hold heading carefully, as you will not have the advantage of tracking
inbound to the intersection using the tail of a needle.
At STUDY intersection, commence the NOWIND orbit. Once wings level on the
outbound heading (270º), begin timing for one minute. Retune and identify the
primary NAVAID and twist the holding course (90º) in the CDI.
At the completion of your oneminute outbound timing, turn to intercept the holding
radial inbound to STUDY. TAILRADIALTURN.
Start timing as you roll wings level (with an intercept set or on course) and determine
wind direction. TAILRADIALWIND.
INSTRUMENT NAVIGATION 7-7