T-45A UJPT & E2-C2 INav-05
TACAN/VOR Navigation Procedures, TACAN/VOR Holding
a. Chord method (usually used when farther than 12
miles DME from station)
(1) Tune and identify station
(2) Determine direction to turn
(3) Determine desired lead point
NOTE: Add lead when tracking to the station;
subtract lead when tracking from the station.
(4) Monitor No. 2 bearing pointer and DME to
determine roll-out
COMMON ERROR: Not monitoring DME and
rolling out at the wrong time and on the wrong
DME arc.
(5) Fly a straight short leg, allowing head of No. 2
bearing pointer to reposition between 5 and 10
degrees behind wingtip position
(6) Turn aircraft to reposition No. 2 bearing pointer
from behind to between 5 and 10 degrees ahead
of wingtip position
(7) Continue sequence of alternating ahead/behind
wingtip until you turn inbound or outbound on
your new radial
b. AOB method (usually used when within 12 miles
DME of station)
(1) Tune and identify station
(2) Determine direction to turn
(3) Determine desired lead point
(4) Initiate 90-degree intercept when DME equals
radius of arc plus or minus desired lead
(6-99) Original
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