0.00.82 PMDG 737
INTRODUCTION
NOVEMBER 2022 DO NOT DUPLICATE For Simulator Use Only
IRS OPTIONS Sub-Menu:
Under the SIMULATION menu (page 1) there is an IRS OPTIONS sub-
menu at LSK 6R that contains a group of options related to the Inertial
Reference Systems on the airplane.
• ALIGNMENT TIME: Normally, the IRS takes approximately ten
minutes to align, a period of time during which the airplane
cannot be moved. Sometimes this is not convenient in a
simulation, so we have offered some alternatives to allow you to
align the IRS more quickly:
o REALISTIC: This option will force the minimum ten
minute alignment while the IRS senses planetary rotation
in order to bring itself to full alignment.
o 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.
o INSTANT: This option will for immediate IRS alignment.
• USE LAST MEMORY POSITION: A modern IRS/FMS is capable
of remembering where it was when it was powered off. You can
simulate this by setting this feature to YES.
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