Although multiple engines could possibly be synchronized to fire in a manner that reduces vibration levels, they will still be significantly greater than those generated by turbojet or rocket motors.

• 从它的发动机和机身的构造材料，虽然多引擎也可能会被同步到火灾的方式，降低振动水平，但仍将大大高于由涡喷发动机或火箭发动机产生的。