pirado you can actually use the sotck sight. You should go to the TA and practice bombing hangers on your own field (to avoid the ack fire when learning). The key is too decided what angle of attack and speed work best for you then replicate it over and over again. Find out where your sight should be in realtion to the target in order to hit the target every time.( at your comfortable speed and Angle of attack) Then truck on over to the main arena and put it to use smacking down knight hangers.