Atlanta - The future Boeing NMA (New Middle of the Market Aircraft) could be developed in two versions similar to the current 757 and 767. Delta Air Lines is in talks with the manufacturer to become the launch operator of the aircraft to fill the gap between the 737 and 787 families.

We talked to Boeing about getting involved as the launch customer,
Delta's boss Bastian told media representatives in Washington. A 797 could succeed the 757 and 767 sub-fleets that Delta will replace in the 2020s.

According to insiders, Boeing plans a 797-6X with 228 passengers and a nonstop range of 5,000 nautical miles, as well as a 797-7X with 268 seats and 4,200 nautical miles. Delta currently has 16, 757-300s with 234 seats and 77, 767-300ER and 767-400ER with 208-261 seats in its fleet.

With the new NMA or unofficially dubbed 797 aircraft, Boeing aims to fill the gap between the 737 and 787 families aircraft.

The rival Airbus claims to have the most complete product line.

Airbus vs Boeing seat comparison

Airbus vs Boeing seat comparison