BarnacleofDoom

Prototype has a DME hold feature that is set up using the RMU. Example use would be an ILS approach that uses DME from a VOR. Enter the VOR freq in the RMU, press 'DME', the nav window will split and the freq you entered will be in the bottom as the DME freq. Then enter the ILS freq as you normally would. Press DME to exit this mode. No clue if this is modeled in the sim but that's how I do it.

Interesting to see the various differences here. Not necessarily what I do at work... typically, though, after the IDENT page I'll go to POS INIT and once the GPS position displays select that. Then off to do whatever else while the alignment process runs. Failure to do so just means at the end of the alignment process you'll have a flashing ALIGN annunciator on the IRS until you enter an appropriate aircraft position. Early aircraft (prior to around S/N 101 or so? don't recall) have two switches, one EICAS, one AVIONICS. That's possibly the source of the referenced checklist. I've been told but never found supporting information that the IRS in the actual aircraft is more accurate if one uses ALIGN and then when NAV RDY appears go to NAV. Lots of crews just go straight to NAV and it'll align just fine. Haven't bothered to purchase this aircraft so I've no idea if the model will do so. Typical alignment times at the latitudes I fly are 5-6 minutes.

ATIS is broadcast over the VORTAC at that airport. Generally (and this information may not apply to the NGX... don't know) one would tune the VORTAC and, in lieu of the usual morse identifier, hear the ATIS. I am not sure if FSX models this or not.As for 270.1, that's a Uniform freq and most civilian a/c don't have the ability to monitor.Sam Simons