T-45C TS, ADV, & IUT RIFP-02
TACAN and VOR Procedures
D.
Arc to radial intercept procedure
1.
Set the desired course in the course selection
window of the HSI
2.
Determine the lead point calculation
3.
At lead point, turn the aircraft toward the intercept
course using 1/2 SRT
4.
Vary AOB in turn with CDI movement to roll out on
course (CDI centered)
NOTE: Do not exceed 30 degrees AOB.
E.
Intercepting a radial from an arc lead point calculation
(LPC) procedure
1.
Estimate the ground speed
2.
Apply the following formula to determine lead
radials: "60/ Arc DME x 1% ground speed = lead
radials"
3.
Begin 1/2 SRT at the determined lead radial and
vary AOB as required to intercept the outbound/
inbound radial
4.
Check status of turn and vary AOB to intercept
desired radial
F.
Adjustment techniques (Arc to Radial - Radial to Arc)
1.
Arc to radial intercept
a.
Inbound radial intercepts will require a greater
lead than outbound because the aircraft is
turning more than 90 degrees
b.
For radial intercepts from arcs less than
approximately 10 DME, an adjustment must be
applied to the arc to radial formula to
compensate for turns outbound of less than 90
degrees and turns inbound of more than 90
degrees
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