split rudder
I fly small hairyplanes and dart around the sky somewhat. I was sitting at the terminal the other day and noticed that the rudder of the likes of the B744 and A380 were split, I thought they were cut in half by a pi$$ed maintennance man, but alas they look engineered.
So, why would the rudder of these big jets be split. Do they turn at varying rates for varying speeds, i.e. only the lower at high speeds and both at lower speeds?
I could of course be talking rubbish - in fact often guaranteed, but can someone please let me in as to what the deal is with the split rudders?
THANKS
SB