Question for Ozzy.

[mhoffman50]

Please take a look at this screenie.

[Ravang]

With some buildings you just have to be near them to get a "crash", try turning off crashes and then it should work.

[SubZer0]

as Ravang put it... you're going to have to turn off the crash detection in the settings and you'll be set

[ozzy72]

Easy, first turn off crash detection (as per the instructions in my aerobatics tutorial). Next GO FOR IT!
I've got a few big things under there... Antonovs, Vulcans, Hercules etc 8-)
If you want to be an aerobatic hard man then have a crack at my tutorial http://www.simviation.com/fshelp.htm (under FS2004 on the right)

[skoker]

The reason why you "crashed" is because all buildings are solid in fs but to make them appear to have "cuts" in them the designers placed an alpha channel on them to make it appear transparrent when they are actually a solid...

...and thats why you need to turn off crashes when doing stunts under buildings.