YouTube - BIG CRASHES. The Ultimate Collection.=

 

Cool; like the upside down helicopter. Ends a bit weak though...

 

The second one on the video was a massive B52 bomber. It used to go around doing flying displays. It had eight jet engines and actually sounded just like the real thing. Do a search on google, there's loads of videos of the construction, some flights, and of course the flight ending in disaster.