3 ms·You get less thrust that way.by tocomment 15y agoYou get less thrust that way.redthrowaway 15y agoAlso worse efficiency, more complexity, more expense, and more things to go wrong.saulrh 15y agoAnd, since this is already being steered by a computer-controlled vectored thrust system, giving it more fans won't make it any more stable in the first place. This system is plenty actuated.Tyrant505 15y agoMore complexity but more redundancy too.