I got a DuraBat from a friend a while back. He had a .60 on it, and said it was pretty fast. I removed the .60 and replaced it with a Tower .46 I had and turned it into a tail dragger due to the sloppy nose gear set-up. Couldn't get enough speed to lift off. This thing is HEAVY. Must be the reason the .60 was on it when I got it. I just might give it a try.