a maximum of 380 passengers. Its most distinguishing feature is the two turbofan engines mounted on underwing pylons and a third engine at the base of the vertical stabilizer. The model was a successor to McDonnell Douglas's DC-8 for long-range operations, and competed in the same markets as theLockheed L-1011 TriStar, which has a similar layout. The DC-10 had a poor safety record initially that was continuously improved over the years.