The McDonnell Douglas MD-11 is a wide-body, three-engine jet airliner that was produced by McDonnell Douglas from 1990 to 1998. It is the third generation of the DC-10, and was the last commercial airliner developed by McDonnell Douglas before its merger with Boeing
From Wikipedia
The McDonnell Douglas MD-11 is an American trijet wide-body airliner which was manufactured by McDonnell Douglas and later by Boeing. The MD-11 is the largest trijet ever built.