Although I can't find a reference to an aircraft engine, Chrysler did have a variable displacement tech on its third gen Hemi engines that could turn off one ba

Although I can't find a reference to an aircraft engine, Chrysler did have a variable displacement tech on its third gen Hemi engines that could turn off one bank of the V8. Ref: https://en.wikipedia.org/wiki/Multi-Displacement_System https://en.wikipedia.org/wiki/Multi-Displacement_System