"Michael" wrote:
My question is - how far did you let the XTE get in the other direction
before you recycled the NAV button? You might simply not have waited
long enough. All it would take is one comparator out of whack.

That's certainly possible. I didn't let it get very far. Enough that it
was obvious to me that it had gone past center, but less than one dot out
on the HSI. I don't recall what the GPS XTE was, but I'd don't think the
A/P is aware of the XTE directly, just the HSI deviation.

I love playing with this stuff. It makes me feel like I'm back in the
1980's playing with analog computers in the control systems lab :-)