A Texas International Airlines DC-9-15 sits at the gate at DFW in this photo from October of 1980. The airline was merged into Continental Airlines in 1982.
The Department of Justice's charges of collusion at multiple airlines should come as no surprise to the ironic actions of none other than...
The Department of Justice.
One would think that an aircraft with additional engines would provide even better performance on normal takeoffs, but the extra engines actually reduces it.