One possible explanation would be a T.O. commonality issue, (which is an Oxymoron in itself) on the U-model gunship the ADI select switch would be used to select either an INS or gyro for ADI attitude reference, just my two cents worth!
"Nothing related but 1855 as far as I knew never had that much "fun". Totally off-subject I know."
Not sure if the crew that flew on the day #1 prop went to reverse in flight would agree with you or not!
Casey,
The other day when I opened Herky Bird from my favorites it showed I was already logged on as someone else, maybe that's your problem in this case!