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Flight Operations & Line Assistance Getting to Grips with Aircraft Performance Monitoring
HOW TO RECORD IN-FLIGHT PARAMETERS
The DMU/FDIMU interface is composed of several devices.
-a Multi purpose Control and Display Unit (MCDU)
The aim of the Multi purpose Control and Display Unit is to display and print real
time AIDS/ACMS data (documentary data, status of various reports and
recordings).
The MCDU also provides:
-manual triggering of reports and recordings,
-distribution of reports to multiple output devices,
-temporary reprogramming of some DMU/FDIMU parameters,
- report inhibition, -control of the DAR/SAR.
The operator has the ability to display any digital data on the aircraft that is available to the DMU/FDIMU via the MCDU.
MCDU location
-the cockpit printer, featuring the following functions:
-manually initiated (via the MCDU) print out of reports -automatic print out of reports -print out of MCDU screens
-an MDDU (airborne data loader), featuring the following functions:
-manually initiated (via the MCDU) retrieval of reports -automatic retrieval of reports -load of DMU/FDIMU software
Flight Operations & Line Assistance Getting to Grips with Aircraft Performance Monitoring
HOW TO RECORD IN-FLIGHT PARAMETERS
-an optional Digital AIDS/ACMS Recorder (DAR)
The DMU/FDIMU data can also be stored on an optional recorder: the Digital AIDS Recorder (DAR). It is a magnetic tape cartridge or an optical disk. This is only available for aircraft equipped with Teledyne DMU/FDIMU. The retrieval of data can be: -manually initiated (via the MCDU) recording of reports
- automatic
-a Smart Access Recorder (SAR)
An integral part of the DMU/FDIMU is the optional Smart Access Recorder (SAR).
It is used to store flight data. Sophisticated data compression algorithms ensure an
efficient usage of the limited DMU/FDIMU memory (Solid State Mass Memory,
SSMM). To read out the SAR data, the operator can use a diskette via the MDDU
or a PCMCIA card via the PCMCIA interface.
The data from the SAR storage buffer can be retrieved through the airborne data
loader.
To manually initiate some specific reports, a remote print button is located on the
pedestal in the cockpit. The report/SAR channel assignment of the remote print
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