Partial panel timed turns

T-45C TS & ADV BIFP-03

Instrument Turns

Mach/airspeed

Altitude

IV. Partial panel timed turns 2.7.1.3.1--used when aircraft

heading system inoperative

Procedure

Determine number of degrees to be turned, using

standby compass as starting reference point

Determine time required for turn by dividing number

of degrees to be turned by turn rate (1-1/2 degrees

or 3 degrees per second)

NOTE: A simpler method to determine timing for 1/2

standard rate turns for some students is to count the

heading change in 30-degree increments, each of

which equals 20 seconds, e.g., a 90-degree heading

change requires 30, 60, 90 (three increments) at 20

seconds each, or 60 seconds.

NOTE: Do not use lead time in maneuver.

Start roll-in as second hand passes a cardinal point

(3, 6, 9, or 12) on clock

Begin roll-out at end of predetermined time period

(no lead point)

Check heading on magnetic compass after roll-out

Control

Establish bank angle that results in desired rate of

turn (evidenced by needle deflection)

Maintain turn rate, altitude, and airspeed as required

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