What brand of jet engine does Southwest Airlines use?

Question

Is it General Electric or Rolls Royce?

Answer 1

Neither  

All Southwest Airlines Fleet use .Boeing 737-200 Boeing 737-300 Boeing 737-500 ,Boeing 737 and Next Gen Boeing 737-700 equiped with ,Improved CFM56-7 turbofan engine, 7% more fuel efficient than the CFM56-3



The new 737 Classic series featured CFM56 turbofan engines, which yielded significant gains in fuel economy and a reduction in noise, but also posed an engineering challenge given the low ground clearance of the 737.

The CFM56 is one of the most prolific engine types in the world because of its long history starting with the Boeing 737-300.

The 737 family has solely relied on the CFM56 for more than 25 years, and still powers the newest variants, the 737-900ER and 737-700ER.