TACAN and VOR Procedures

T-45C TS, ADV, & IUT RIFP-02

(1) Degrees to turn outbound are equal to 90

minus the number of lead radials

determined by formula

(2) Degrees to turn inbound are equal to 90

plus the number of lead radials determined

by formula

(3) As a rule of thumb, reduce or increase the

lead radials determined by formula by one-

third

2.

Radial to arc intercept

a.

When intercepting an arc from a heading

significantly more or less than 90 degrees from

the arc, an adjustment should be made to the

result of the formula for arc intercepts

(1) Use 1% for a turn of approximately 90

degrees

(2) For a turn of approximately 45 degrees, use

1/3 of that required for 90 degrees

(3) For a turn of approximately 60 degrees, use

2/3 of that required for 90 degrees

(4) For turns of less than 30 degrees, very little

lead is required

b.

When intercepting an arc from a radial closer

than approximately 12 DME, an adjustment

should be made to compensate for outbound

turns greater than, and inbound turns less than

90 degrees

(1) Outbound radial to arc, add approximately

1/2 DME to 1% ground speed

(2) Inbound radial to arc, subtract

approximately 1/2 DME to 1% ground

speed

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