[MetalMan]

Yes, there is such a thing. A RC car/truck is too fast when it creates more lift than it has downforce.

For the MT2, that point seems to be reached at ~65mph (guess). I was doing 10s1p runs with the body on, and the warmer weather/hotter asphault compared to last night helped a lot with keeping the truck more stable. Fewer cars on my street also helped.

I was increasing speed with each pass, to get the feel of how the throttle should be worked. Then one pass, the truck lifted off! And it wasn't due to a blip of the throttle, or an imperfection of the pavement, because the back end lifted off. I'd say the truck got a good two feet into the air before coming back down to the ground, and tumbling. The only noticeable damage was a broken rear ball end and a ripped from bumper. And of course both the 10s pack and the receiver pack were ejectected, despite the good strength of the industrial strength Velcro.

Now I need to work on downforce...