ATR 72 - Auto Flight

AUTO/MAN pb - This pb enables switching between Selected Manual Speed (MAN) and Automatic Speed managed by the FMS (AUTO). At power on:

the manual speed target mode (MAN) is engaged.

the last active mode at the time of power down is automatically engaged.

the automatic speed target mode is engaged.

Correct! Wrong!

Only one lateral and one vertical mode can be activated simultaneously. If two vertical modes are armed, the first which meets the capture conditions becomes first active. The second is automatically disengaged.

True.

False.

Correct! Wrong!

Only one lateral and one vertical mode can be activated simultaneously. If two vertical modes are armed, the first which meets the capture conditions becomes first active. The second remains armed.

Action on the AP pb engages AP and YD functions simultaneously. All four associated arrows come on green. Pressing the pb again disengages the AP and YD functions.

True

False

Correct! Wrong!

Action on the AP pb engages AP and YD functions simultaneously. All four associated arrows come on green. Pressing the pb again disengages only the AP function.

On the back side of the Control Wheel, there is a Touch Control Steering (TCS) pb. When pressing the button you take temporary manual control of the aircraft without disconnecting the AP. In flight, if the pilot presses the TCS pb in the basic mode, this will cause the AP to change the pitch and roll references. If the TCS pb is released at bank angles less than _____ the system will level the wings and, at wings level will fly the existing heading.

12 degrees

6 degrees

10 degrees

Correct! Wrong!

If the bank angle is greater than 6 degrees but less than 35 degrees at TCS pb release, the AP will maintain the bank angle. At bank angles greater than 35 degrees the aircraft will return to 35 degrees and the AP will maintain 35 degrees.

With VNAV mode engaged, Vertical Path Change Alert indicates that aircraft pitch will change due to VNAV guidance. VPCA is raised _____ before the pitch change.

7 seconds

10 seconds

5 seconds

Correct! Wrong!

SPEED HLD pb - A yellow SPD HLD INHIB message is shown on the FMA.

In cruise only, it stays displayed until the SPEED HLF function is cancelled

It is displayed steady for 7 seconds, then disappears.

It stays displayed until the SPEED HLF function is cancelled.

Correct! Wrong!

LNAV-VNAV Approach Mode - Action on the FGCP APP pb selects V-FP mode provided a LNAV/VNAV approach is selected on the FMS flight plan. V-FP ARM is annunciated on the FMA by a cyan 'V-FP' message. _____ Nm before the FAF, V-FP mode engages and is annunciated on the FMA.

1.0

0.5

2.0

Correct! Wrong!

The purpose of the Flight Path Angle (FPA) protection is to prevent aircraft from stopping climb, during significant evolutions of IAS target (e.g. after flaps configuration change) or significant downdrafts. When active, AFCS takes over pitch guidance order. In GA mode Flight path angle protection is available _____ after a go-around performed under 500 ft (or performed with RA failed).

60 seconds

180 seconds

30 seconds

Correct! Wrong!

The purpose of the low speed protection is to prevent the aircraft from decreasing significantly below Vmin OPS (Minimal flight speed based on flying conditions and aircraft configuration). When active, AFCS takes over pitch guidance order and alerts the flight crew. Low speed protection is available in:

In clean configuration.

In clean and FLAPS 15 configurations.

In all approach configurations.

Correct! Wrong!

Action on the GA pb selects the GO AROUND mode and cancels all armed and active FD modes. The AP disengages and the FD gives commands to fly _____ and to maintain heading followed at GA engagement.

A 10-degree minimum safe pitch attitude.

A 7-degree minimum safe pitch attitude.

A predetermined minimum safe pitch attitude

Correct! Wrong!

The purpose of the high speed protection is to prevent the aircraft from exceeding Vmax. Vertical mode pitch target is no longer followed as long as the protection is active.

True.

False.

Correct! Wrong!

Altitude alert is part of the Automatic Flight Control System (AFCS).

True.

False.

Correct! Wrong!

The AFCS achieves Autopilot (AP), Yaw Damper (YD), turn coordination, Flight Director (FD) function and Altitude alert.

Pitch Wheel (PW) - In VS mode, operating the PW will change the VS value without disengaging the VS mode. In pitch Hold mode, operating the PW will change the pitch target value without disengaging the pitch Hold mode. PW is inhibited in GS, IAS HOLD, ALT SEL CAPTURE, and ALT HOLD modes.

True.

False.

Correct! Wrong!

In all lateral modes, this function selects automatically the bank angle limit (High or Low bank). HI BANK is selected if IAS is more than:

VmHB (High bank maneuver speed) + 5 and RA is more than 1100 ft.

VmHB (High bank maneuver speed) or RA is more than 1100 ft.

VmLB (Low bank maneuver speed) and RA is more than 1100 ft.

Correct! Wrong!

During Localizer Performance with Vertical Guidance (LPV) Approach Mode Without Vector to Final (VTF), action on the APP pb on FGCP selects L-LOC and L-GS ARM modes provided that:

An LPV approach is selected in the flight plan and VNAV mode is engaged.

An LPV approach is selected in the flight plan and LNAV mode is engaged.

An LPV approach is selected in the flight plan and LNAV or VNAV mode is engaged.

Correct! Wrong!

When the AP is engaged, the pitch, roll, and yaw actuators are connected to the flight controls, the pitch AUTO trim and yaw AUTO trim function are activated.

True.

False.

Correct! Wrong!

When the AP is engaged with no vertical upper mode selected the AP flies current pitch attitude. This is the basic vertical mode (PITCH HOLD, displayed in green).

Pitch wheel and TCS can be used to modify the pitch attitude.

Only Pitch wheel can be used to modify the pitch attitude.

Only TCS can be used to modify the pitch attitude.

Correct! Wrong!

The purpose of the complementary low speed alerting is to alert the flight crew that the aircraft speed decreases significantly below Vmin OPS. Complementary low speed alerting is available _____

In flight, above 80 ft.

Anytime when the aircraft is above 200 ft AAL.

When the WOW (Weight On Wheel) system senses that the aircraft is in flight.

Correct! Wrong!

FD display and active modes are disengaged automatically upon stall warning activation.

True.

False.

Correct! Wrong!

Altitude Alert consists in the activation of an aural signal if preselected altitude is preselected altitude is ALT SEL and an aural signal in addition with a visual signal if preselected altitude is managed by FMS.

False.

True.

Correct! Wrong!

This is the reversal. Altitude Alert consists in the activation of an aural signal if preselected altitude is managed by FMS and an aural signal in addition with a visual signal if preselected altitude is ALT SEL.

The selected bank angle is displayed on the FMA. If nothing is displayed the bank angle maximum value is:

30 degrees.

15 degrees.

27 degrees.

Correct! Wrong!

The purpose of the high speed protection is to prevent the aircraft from exceeding Vmax. The high speed protection lowers the descent rate, possibly down to Vz = 0 ft/min. When protection is activated, AFCS takes over pitch guidance order and alerts the flight crew.

True.

False

Correct! Wrong!

When pressing these go-around pb, the go-around mode is engaged. _____ are cancelled and the autopilot is disengaged.

All flight director modes except LNAV (if engaged before GA)

All flight director modes

All flight director modes except HDG or LNAV

Correct! Wrong!

If LNAV is engaged when pressing the GA pb, LNAV remains engaged to provide guidance along the missed approach procedure.

AFCS provides an Enhanced BC capture function. The back course mode is set up and flown exactly like a front course localizer approach but selecting BC mode.This function uses FMS guidance data to anticipate back course LOC Capture, and then switch to LOC beacon deviation when it can be used. Enhanced BC capture is available until _____ interception angle.

90 degrees

150 degrees

170 degrees

Correct! Wrong!

if interception angle is greater than 170 degrees, Enhanced BC capture function is not available. Basic BC mode (without FMS guidance data) remains available.

LNAV-VNAV Approach Mode - While V-FP is engaged, the aircraft will descend toward the MDA along the vertical profile provided by the FMS. Aircraft will stop at the selected altitude.

False.

True.

Correct! Wrong!

Aircraft will ignore the selected altitude.

Reduced Bank Angle Function - In all lateral modes, this function selects automatically the bank angle limit (High or Low bank). Selection of either value is made by the AFCS computer by comparison between current aircraft speed and:

VmLB (Low bank maneuver speed).

VmHB (High bank maneuver speed).

VmHB (High bank maneuver speed) and VmLB (Low bank maneuver speed).

Correct! Wrong!

ATR 72 – Auto Flight

Quiz

ATR 72 - Auto Flight

AUTO/MAN pb - This pb enables switching between Selected Manual Speed (MAN) and Automatic Speed managed by the FMS (AUTO). At power on:

Only one lateral and one vertical mode can be activated simultaneously. If two vertical modes are armed, the first which meets the capture conditions becomes first active. The second is automatically disengaged.

Action on the AP pb engages AP and YD functions simultaneously. All four associated arrows come on green. Pressing the pb again disengages the AP and YD functions.

With VNAV mode engaged, Vertical Path Change Alert indicates that aircraft pitch will change due to VNAV guidance. VPCA is raised _____ before the pitch change.

SPEED HLD pb - A yellow SPD HLD INHIB message is shown on the FMA.

LNAV-VNAV Approach Mode - Action on the FGCP APP pb selects V-FP mode provided a LNAV/VNAV approach is selected on the FMS flight plan. V-FP ARM is annunciated on the FMA by a cyan 'V-FP' message. _____ Nm before the FAF, V-FP mode engages and is annunciated on the FMA.

Action on the GA pb selects the GO AROUND mode and cancels all armed and active FD modes. The AP disengages and the FD gives commands to fly _____ and to maintain heading followed at GA engagement.

The purpose of the high speed protection is to prevent the aircraft from exceeding Vmax. Vertical mode pitch target is no longer followed as long as the protection is active.

Altitude alert is part of the Automatic Flight Control System (AFCS).

Pitch Wheel (PW) - In VS mode, operating the PW will change the VS value without disengaging the VS mode. In pitch Hold mode, operating the PW will change the pitch target value without disengaging the pitch Hold mode. PW is inhibited in GS, IAS HOLD, ALT SEL CAPTURE, and ALT HOLD modes.

In all lateral modes, this function selects automatically the bank angle limit (High or Low bank). HI BANK is selected if IAS is more than:

During Localizer Performance with Vertical Guidance (LPV) Approach Mode Without Vector to Final (VTF), action on the APP pb on FGCP selects L-LOC and L-GS ARM modes provided that:

When the AP is engaged, the pitch, roll, and yaw actuators are connected to the flight controls, the pitch AUTO trim and yaw AUTO trim function are activated.

When the AP is engaged with no vertical upper mode selected the AP flies current pitch attitude. This is the basic vertical mode (PITCH HOLD, displayed in green).

The purpose of the complementary low speed alerting is to alert the flight crew that the aircraft speed decreases significantly below Vmin OPS. Complementary low speed alerting is available _____

FD display and active modes are disengaged automatically upon stall warning activation.

Altitude Alert consists in the activation of an aural signal if preselected altitude is preselected altitude is ALT SEL and an aural signal in addition with a visual signal if preselected altitude is managed by FMS.

The selected bank angle is displayed on the FMA. If nothing is displayed the bank angle maximum value is:

The purpose of the high speed protection is to prevent the aircraft from exceeding Vmax. The high speed protection lowers the descent rate, possibly down to Vz = 0 ft/min. When protection is activated, AFCS takes over pitch guidance order and alerts the flight crew.

When pressing these go-around pb, the go-around mode is engaged. _____ are cancelled and the autopilot is disengaged.

LNAV-VNAV Approach Mode - While V-FP is engaged, the aircraft will descend toward the MDA along the vertical profile provided by the FMS. Aircraft will stop at the selected altitude.

Reduced Bank Angle Function - In all lateral modes, this function selects automatically the bank angle limit (High or Low bank). Selection of either value is made by the AFCS computer by comparison between current aircraft speed and: