Figure 4-11 Holding

T-6A INSTRUMENT NAVIGATION

CHAPTER FOUR

5. Compensate for wind effect primarily by applying drift corrections on the inbound and

outbound legs. When flying outbound, triple the inbound drift correction to avoid major turning

adjustments. For example, if your inbound correction is 8 left, then your outbound correction

would be 24 right.

6. Determine the entry turn by observing the aircraft's heading when it reaches the holding

fix; + 5 in heading is considered to be within allowable good operating limits for determining

entry.

7. Determine the holding course and the reciprocal of the holding course. The holding course

is the course inbound to the holding fix (Figure 4-11). The reciprocal of the holding course is

used to determine the direction of entry turn. When the holding fix is a station, the reciprocal

will be the same as the radial.

ABEAM

NO WIND HDG 090

POSITION

OUTBOUND LEG

HOLDING SIDE

270 HOLDING COURSE

090

HOLDINGRADIAL

HOLDING FIX

NON-HOLDING SIDE

Figure 4-11 Holding

8. Determine the direction of entry turn. The position of the reciprocal of the holding course

in relation to the heading index at initial holding fix passage will determine the direction of entry

turn.

Standard Holding

Sector A (TEARDROP). If the reciprocal of the holding course is between the

heading index and 70 to the right of the heading index, make a teardrop entry. This

is accomplished by turning in the shortest direction (left or right) to a heading 30 less

than the reciprocal of the holding course.

Sector B (PARALLEL). If the reciprocal of the holding course is between the

heading index and 110 to the left of the heading index, make a left turn to parallel

the reciprocal of the holding course.

Sector C (DIRECT ENTRY). If the reciprocal of the holding course does not meet

the criteria listed in A or B above, turn right to the reciprocal of the holding course.

INSTRUMENT NAVIGATION

4-33