Thank you very much for your replies. I didn't know this forum already had this topic discussed, my bad I didn't do the search, but thanks again for letting me know about the regulations. The only thing I want to know is if the highest allowable MTOW (ex: for the longest runway in the world with no obstacles ahead) for the MD-82 (149500lbs) permits it to continue and takeoff with just one engine.
Best wishes!