EICAS Display
Hi, simple question..
If both displays of an eicas system fail, what information will be displayed on the standby engine indicator? N1 EGT N2 or N1 EGT EPR |
Depends on the aircraft.
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in the JAA aircraft :confused:
And about the Indicated Airspeed as read on the ASI Reamins unchanged in headwind and tailwind? Again, JAA ASI ;) |
Huh?
What's a JAA aircraft? Many different aircraft have EICAS. I fly an Embraer. I'm sure ours is diffent from say, the Airbus. The ASI reads the speed the aircraft is travelling through the air. Headwinds or tailwinds have nothing to do with what you read. |
I think the JAA ATPLs are based around the 737. Kel suprise!
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Regarding Engine indications you probably don't get anything displayed.
For crew alerting, you would get local warnings - ie Warnings not displayed centrally but locally to the actual fault (eg Generator Failure would only light up Gen Fault light in overhead panel with no other warnings). True, it does depend on aircraft, but this is the general philosophy. |
On the Standby Engine Indicator (SEI) on the 757 you get LCD style displays of:
EPR N1 EGT and N3 (RR Engines) on the 767 you get: N1 EGT N2 (GE Engines) The SEI will activate on loss of AC power or on EICAS failure when selected in the auto mode. Specific to 757/767 only in our configuration, but I hope this gives you an idea. |
N1 EGT N2 or N1 EGT EPR |
HWD
With all respect, a few corrections. :) To the best of my knowledge.... The primary power setting parameter is engine specific, EPR on RR engines and N1 on GE engines. If both EPR and N1 are displayed on the standby instrument, both are useful to the pilot. :ok: POL |
From the Bristol notes, which are all written around the MRJT-1 for the JAA exams,:
If EICAS fails a standby engine indicator shows EPR, N1, EGT and N2 on an LED display. |
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