A320 Angle of bank
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Hi,
I found it in the LPC Browser (the new Electronics FCOMs from Airbus), but the table of contents is written in a different way:
REF 22-20-60-50 (Auto Flight - Flight Management - Other Functions - Engine Out), it says:
"In the speed reference system (SRS) mode, the takeoff speed target is V2, or the current speed if it is higher but no more than V2 + 15. The magenta triangle indicates V2 in all cases. The GO Around speed target is VAPP, or the current speed if higher, limited to VLS + 15 kt.
The system limits autopilot (AP) and flight director (FD) bank angles during takeoff and approach phases as follows :
* 15 ° when the aircraft speed is below the maneuvering speeds (F, S, or Green Dot speed) -10 kt
* Then linear increase to 25 ° up to maneuvering speeds (F, S, or Green Dot speed) -3 kt
* 25 ° above maneuvering speeds (F, S, or Green Dot speed) -3 kt.
Note:
The engine-out bank angle limits apply, when the FG part of the FMGS has detected an engine-out. It cannot be cleared by the crew through the MCDU E.O CLEAR prompt."
I haven't found the equivalent reference in FCOM, but will keep looking and post here again.
I found it in the LPC Browser (the new Electronics FCOMs from Airbus), but the table of contents is written in a different way:
REF 22-20-60-50 (Auto Flight - Flight Management - Other Functions - Engine Out), it says:
"In the speed reference system (SRS) mode, the takeoff speed target is V2, or the current speed if it is higher but no more than V2 + 15. The magenta triangle indicates V2 in all cases. The GO Around speed target is VAPP, or the current speed if higher, limited to VLS + 15 kt.
The system limits autopilot (AP) and flight director (FD) bank angles during takeoff and approach phases as follows :
* 15 ° when the aircraft speed is below the maneuvering speeds (F, S, or Green Dot speed) -10 kt
* Then linear increase to 25 ° up to maneuvering speeds (F, S, or Green Dot speed) -3 kt
* 25 ° above maneuvering speeds (F, S, or Green Dot speed) -3 kt.
Note:
The engine-out bank angle limits apply, when the FG part of the FMGS has detected an engine-out. It cannot be cleared by the crew through the MCDU E.O CLEAR prompt."
I haven't found the equivalent reference in FCOM, but will keep looking and post here again.
Last edited by FLEXPWR; 5th Aug 2011 at 03:12. Reason: Quotation Marks
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DSC-22_30-40 Speed/Mach Control:
".... as long as the speed target is managed, the FMGS limits the aircraft to the maneuvering speed of the current slats/flaps configuration (VAPP, F, S, Green Dot)."
You can use 30 degs bank with managed speeds.
".... as long as the speed target is managed, the FMGS limits the aircraft to the maneuvering speed of the current slats/flaps configuration (VAPP, F, S, Green Dot)."
Which bank limit do I have during an ordinary approach flying Vapp?
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Redfly
From an Airbus presentation quoted below:
Maneuvering capability
At Vls (final takeoff up to landing) : Stabilized turn 40°bank before alpha floor
From an Airbus presentation quoted below:
Maneuvering capability
- At V2, one engine out: Stabilized turn at 30°bank before alpha max
- At V2 + 10, all engines operative: turn at 40°before alpha floor
- At Green Dot: Stabilized turn at 45°bank before alpha prot
At Vls (final takeoff up to landing) : Stabilized turn 40°bank before alpha floor
Last edited by vilas; 6th Apr 2014 at 13:02. Reason: correction
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Which brings along a point it is worth remembering..
Flap 3 departure. You reach 2 eng accel alt.. You are now just past F speed, Flap 1 selected....Now well below S speed in config 1+F. Engine fails.
Two things worth remembering. If you select a heading to get away from a mountain, you will get max 15deg AOB. Secondly if you now select TOGA, you will get SRS!
Flap 3 departure. You reach 2 eng accel alt.. You are now just past F speed, Flap 1 selected....Now well below S speed in config 1+F. Engine fails.
Two things worth remembering. If you select a heading to get away from a mountain, you will get max 15deg AOB. Secondly if you now select TOGA, you will get SRS!