|Object Type:||Control/Data Entry|
|Object Name:||Turn Control|
|Year of Manufacture:||Unknown|
|Location:||Rack RAA02 [Main Store]|
Transport Aircraft Controls Division
The ‘Turn Control’ was originally incorporated into the Autopilot Control Panel but was moved to the central pedestal as part of the Datum Adjust Unit. This provides excellent ergonomics should the pilot require to control the aircraft through adjustment of the 'pitch hold' and 'heading hold' modes over long periods. This location also facilitates accurate setting of pitch attitude in turbulent conditions. The Datum Adjust Unit comprises the control facilities used by the pilot to manoeuvre the aircraft through the autopilot and autothrottle. The Autopilot Turn Control provides a bank angle demand facility enabling changes of heading to be made at bank angles below the autopilot internal limit and this will turn the aircraft at a roll rate of 5 degrees per Second. It is a manually operated rotary control with centre detent position.