how do you jump 70ft but only 2-3 feet high???? that is impossible unless you are going a thousand MPH

 

Pretty simple. Going about 40-50 mph, come up a steep hill then you get off the ground and the ground levels off and stays level. The front of the sled is probably about 3 or 4 feet high and the back of the track is a little lower most of the time. I have a vidio of it, too bad you can't see it.