A330/340 Turb Damp P/B
Joined: Nov 2007
Posts: 144
Likes: 0
From: Up front
Without quoting the FCOM? Sorry that would be difficult, maybe you meant not quoting the FCOM reference. This is what it does:
TURBULENCE DAMPING FUNCTION
This Topic is relevant to the following aircraft:
The purpose of the turbulence damping function is to damp the structural modes induced by atmosphere turbulence.
The function uses the Nz accelerometer and two dedicated Ny accelerometers. The PRIMs compute a turbulence damping command, which is added to the normal law command for the elevator and the yaw damper.
This function is automatically monitored and becomes inoperative for the remainder of the flight, when a failure is detected. In addition, it may be manually inhibited by switching off the TURB DAMP pushbutton on the overhead panel, when it is considered that comfort is degraded instead of being improved, and no failure is detected.
It is only available if the following conditions are met :
Aircraft in flight
Aircraft speed greater than 200 knots.
Autopilot engaged or normal law active.
Aircraft within the normal flight envelope.
TURBULENCE DAMPING FUNCTION
This Topic is relevant to the following aircraft:
The purpose of the turbulence damping function is to damp the structural modes induced by atmosphere turbulence.
The function uses the Nz accelerometer and two dedicated Ny accelerometers. The PRIMs compute a turbulence damping command, which is added to the normal law command for the elevator and the yaw damper.
This function is automatically monitored and becomes inoperative for the remainder of the flight, when a failure is detected. In addition, it may be manually inhibited by switching off the TURB DAMP pushbutton on the overhead panel, when it is considered that comfort is degraded instead of being improved, and no failure is detected.
It is only available if the following conditions are met :
Aircraft in flight
Aircraft speed greater than 200 knots.
Autopilot engaged or normal law active.
Aircraft within the normal flight envelope.
Joined: Dec 2007
Posts: 97
Likes: 0
From: I know EXACTLY where I am..
I imagine to really fond out what happens, you would have to fly into turbulence and then switch it off.
Simply put - you should shake more. Its one of those things you dont miss until its gone
regards, OORW
Simply put - you should shake more. Its one of those things you dont miss until its gone
regards, OORW
Joined: Feb 2006
Posts: 16
Likes: 0
From: sussex,england
On some older aircraft the Autopilot had a Turbulence switch which when engaged reduced the A/p rate by something like 50%.It was just to soften the response in turbulence to stop a strain being put on the structure due to too rapid commands from upsets............
Joined: Dec 2007
Posts: 97
Likes: 0
From: I know EXACTLY where I am..
No, its not a less responsive autopilot with the bus. This button controls active turbulence damping, where the flight controls are actively deflected by the computers to automatically compensate rough flight.
OORW
OORW
