Salvia Divinorum

Yeah I have done it also hitting it with anouther ATV or car... So far this has worked 100% of the time... Once I was on a steep hill side and had to keep doing it untill my rear was facing down hill. Took alot longer than normal but it still worked.

From what I understand downed choppers spawn/re-spawn on every server reset. They can appear in open fields anywhere on the map. If you want to find more downed choopers join a server that resets every 4-6 hours.

Works great for the Helicopter!

I've done it once also but didnt want to make any promises.. It's better just to avoid the buggy bridges and docks.

This will work unless your stuck on a bridge or the docks. http://youtu.be/EWQL4c7hsyA