The dual systems are selected on by the piano switches, only one is used, with the other acts as a back up. This can be dialled in and then, when requested Eg on approach the aircraft could be flying at 250 knots, with IAS ACQ - The 3rd mode will allow the aircraft to fly or aquire to a IAS HOLD - This the the mode that the throttles will selected to first, and will hold the Indicated Air Speed (IAS) that the aircraft was flying at when they were engaged
Is using during cruise, as it will maintain the correct mach number no matterĪre that effect mach number, such as temperature. Maintain the current mach number being followed when this mode was engaged. MACH HOLD - This will ensure the engines are automatically throttled to The primary control of the autothrottle system's settings are through the controlsĪvailable on the left quarter of the glareshield panel and a datum adjust unit The autothrottles can alsoĬome into operation when a certain parameter is meet, eg the aircraft is required If the Autothrottle system detects a fault it will automaticallyĭisengage and hold a constant throttle settings. Each engine can be switched to 3 control modes: Main, Alternate and OFF! A facility is also provided to disconnect the autothrottle for one engine at a time during abnormal operations.Īs the throttles are not mechanically, but electrically connected,Ī main and standby channel are both engaged, with the main channel being given The Autothrottle system provides electronic thrust control of the engines, to ensure certain speeds can be held during cruise and approach flying.
The ADI, that the pilot would match with the aircraft's movements. It displays 2 yellow command bars and an attitude display on (FD) is used when the pilot wants to hand fly the aircraft, but be guided by It were flying the aircraft under the current settings. Indicator (ADI - Artificial Horizon) what the autopilot would want to do if The flight director provides a visual indication on the pilot's Attitude Direction It also includes six "piano switches" that can select in or out in the autothrottles,Īutopilot and flight director systems as required. The lower row allows the headingsīe set into the system, as well as height and speed "to fly to" settings. The top row of the panel can be split into 3 sections to select different autothrottleĪnd horizontal or vertical autopilot modes. We actually set up the Automatic Flight Control regimes. The central area is the area we are most concerned with, as this is where
The picture to define the various control areas (coming soon). The British Airways Concordes have the exact same system. This is from Air France Concorde F-BTSD, but The majority of the controls for the AFCS are situated on the glareshield andĪre shown below in the picture. There are 2 mains parts to the system the Autothrottles andĪutopilot, and a number of associated systems, such as the warning displays The system is designed to allow "hands off" control of the aircraft from climb The text covers in detail the subject of stability and control theory.CONCORDE SST : Automatic Flight Control SystemĬoncorde has an Automatic Flight Control System (AFCS) installed, that for the A treatment of automatic flight control systems (AFCS) for fixed wing and rotary wing aircraft.
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