I think that is not so anymore, UncleAl.
With Phase 2, I had problems, until I set the "Regional Language" to "English (USA)".
But I think that is not a problem anymore - at least it isn't for me.
Perhaps an Australian pilot can tell us better?
Dokken, I have attacked a Hannover only once so far, with a SPAD XII.
They are spiny as a hedgehog, I remember.
With that powerful craft, I could fly under the last flyer and then pull up, to fire into the engine and cockpit areas.
Push the nose down again, before you get into the range of the rear gunner.
I never attack two-seaters head-on, cause I'd have to fly through the fire of the other Hannovers that way.
But others here seem to do it sometimes.