Designed to reduce noise, nacelle chevrons ultimately proved to be more bad than good.

In 2025, the second J-36 demonstrator was seen featuring what appears to be a return to the F-22's previously unique rectangular exhaust nozzles.

Fluidic thrust vectoring control (FTVC) represents a paradigm shift in the management of exhaust flow direction within jet and rocket nozzles. By injecting secondary fluid streams or manipulating ...