I started flying EECH again after many years off. I've installed EECH 1.16.1 and a few texture-mods. I ended up with only using the EECH-launcher and the mods available to me within it. Except Robota's pack (I suspect it made the crashes more frequent).
I have seen the game just quit to windows (CTD) without any errormsg emmediately after take-off once after making a 90 degree turn on and just started flying forward. I have seen the game quit when I change the left-most AUX-MFD-page in the RAH-66.
Is there a log somewhere that I can see what the culprit is?
I also saw a CTD when the stable hoverhold was unable to maintain altitude. It had the collective on 99% and when the chopper hit the ground the game CTD (think I was in a vortex state).

Two options you can try
1. enable "debug_log" in EECH.INI so all detected errors will be stored in text file. it is possible that some error will appear just before CTD, of 10-30 seconds before. but some errors are not critical but still appear in the list. as result you will get playable game with logging of most importatn events.
2. use DEBUG.EXE instead so very detailed log will be stored. also all detectable errors will became fatal so it's not really playable.

Quite often crash caused by poor code - some function receive unexpected value while such even is not escaped, code errors pop up in very specific situation etc. In this case the best thing you can do is share logs with some clue about this error.

Thanks. I've enabled debug_log and try that first.

I've only had one crashed and it was when changing the left (regular) MFD in Chinook to something from something. I saw it used the old 2d Apache pit (but that only means we dont have a specific pit for the CH-47 right?)



Other than that EECH has become quite stable after I enabled debug logging

that's true that CH-47 does have common cockpit, but code contain some exceptions for aircrafts, so it may be bug for all default aircrafts, or just this one. will check it.