APU and IRS System
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Hello,
I've noticed a few things that I don't know whether they are realistic or not.
- engines can be started while the packs are on.
- it is not necessary to enter the position in the FMC for the IRS.
- “LVL CHG” exceeds the entered altitude from time to time. Especially with small steps e.g. from 3000 to 4000ft. The aircraft immediately begins a very steep climb and does not stop in time. I would like to see a smoother transition.
- iLS intercepts are also often not initiated smoothly but are wildly overshot in both directions. i can't imagine that the real airplane also makes such violent impulses.
And one more question. Are there plans to integrate a PDLC via the Hoppie network?
Otherwise I am very excited about the airplane! It is fantastic.
I look forward to answers.
Kind regards -
Thank you for your feedback. I'll supply answers to each of your points below:
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This is correct logic. The engines are started electrically in the 146/RJ and don't require bleed air from the PACKS. However, there are steps in the checklists to switch off APU AIR and the PACKS during engine start to both reduce electrical load on the system and to prevent exhaust fumes from entering the cabin.
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This logic varies depending on the state you load the aircraft in. If you load the aircraft Cold and Dark, you must enter the aircraft's position into the FMS in order for the IRSs to align. If you load the aircraft in a 'Turnaround' or 'Ready for Takeoff' state, the IRSs will already be aligned and a position does not have to be entered into the FMS.
3/4. Thank you for the feedback. We will log this on our internal trackers for the development team to investigate.
There are no plans at the moment to integrate a CPDLC via Hoppie, but I have added this to our internal feature requests as something to consider for a future update.
Mark - Just Flight
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