Originally Posted by
yr right
Internal separator opens the by pass and as such you loose ram air affect. If you install raisebect ram air recovery it doesn't matter then.
I'll be blowed. That's exactly how it was explained to me way back👍 I was also told to always add the distance just in case something got sucked in because with it in the bypass position the air doesn't go into the engine but rather back out one of the cowls.