I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 141
FOR SIMULATION USE ONLY – NOT A TRAINING AID
The scale has a range from ±6000 ft. /min, and the digital readout can display a
range from ±9900 ft. /min. When the current aircraft vertical speed is ±6000 ft. /min,
the scale pointer is displayed pegged at ±6000 ft. /min respectively.
When the current aircraft vertical speed is greater than ±9900 ft. /min, the digital
readout displays ±9999 ft. /min respectively.
Turn and Slip Indicators
The turn and slip indicator shows the rate and direction of turn.
SLIP/SKID INDICATOR
The slip/skid indicator is used in conjunction with the zero degree roll pointer. In a
turn, the movement of the slip/skid indicator shows the magnitude and direction of
the aircraft slip or skid.
When the aircraft is in a coordinated turn, the slip/skid indicator is positioned
directly below the zero degree roll pointer. The maximum movement of the slip/skid
indicator occurs when the centre of the indicator is above the centre of one of the
outer rate of turn boxes, and the indicator pegs at this extent if it is reached.
RATE-OF-TURN INDICATOR
The rate-of-turn indicator consists of a pointer and a scale. The pointer shifts left
and right along the scale to indicate the current aircraft rate and direction of turn.
The scale is calibrated for standard rates of turn, and the outer boxes representing
a standard rate turn (3° per second) in each direction. The pointer pegs in either
direction when the inner edge of the pointer reaches the outer edge of one of the
outer boxes, which indicates that the aircraft rate-of-turn is 4.5° per second or
greater.
Angle of Attack (AOA) Indicator
The AOA indicator, provides a continuous display of aircraft angle of attack. On the
tape and dial display the indicator is marked with a red range and red carat at 18
units, which indicates stall; a green range from 10 to 11 units, which indicates the
normal approach speed (optimum angle of attack or on-speed) range; an upper
white carat at 8.8 units, which indicates the maximum endurance angle of attack,
and a white carat at 4.4 units, which is the maximum range angle of attack.
AOA TEST
The AOA indicator and stick shaker are normally inhibited when the aircraft is on
the ground, and only the red chevron shows on the indexer in each cockpit. An
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