lanier dominator help
 

i am building my first lanier plane. the instuctoins are about like my spelling, they suck. i was looking on the plans and it shows that one aileron is only 7.5 inches on one side and the other side is 15.0 inches. they are not centered on the fuse. is this the right way or am i just not seeing somthing. it is a v tail racer. it is the dominator 1500 . please help!!!!!