1.In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

1.此外，美国空军继续投资于航空究所（原来的大西究所）的可变箭发动机系统，将其作为增程空空导弹的未来推进选项。