ORIGINAL: 1morecrash
they are different they rotate on opposite directions dont mix them up.
there is an A and B .
DUH!! [sm=spinnyeyes.gif] Boy I feel stupid for asking that question. I give myself some credit though, as I would have noticed the bade direction before making the replacement.
Still though, I wonder what the numbers mean. I know the top blades on the heli have a "4". The ones in the bag that came with the heli have "2" and "1".