It takes around 20 seconds. Is this realistic? If not, where can I change the setting? I couldn’t find anything in the PMDG Setup page in CDU
From the manual:
IRS Options Sub-Menu:
Under the SIMULATION menu (page 1), an IRS OPTIONS sub-menu at LSK 6R contains options related to the aircraft’s Inertial Reference Systems.
- ALIGNMENT TIME: Normally, the IRS takes approximately ten minutes to align, during which the aircraft cannot be moved. Sometimes, this is inconvenient in a simulation, so we have offered alternatives to allow you to align the IRS more quickly.
- REALISTIC: This option will force the minimum ten-minute alignment while the IRS senses planetary rotation to bring itself to full alignment.
- FAST (30 SEC): This option will align the IRS in 30 seconds, thus requiring that you be aware of the alignment requirement without making you wait ten minutes.
- INSTANT: Just as it says.
- USE LAST MEMORY POSITION: A modern ADIRU/FMS can remember where it was when it was powered off. You can simulate this by setting this feature to YES.
2 Likes
Thank you!