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Im new on here, joined in the hopes that someone might be able to assist. Myself and a friend have created a freestyle motocross park, with all kinds of huge jumps. We have just been approached by the owner of an earthmoving company who is going to sponsor us the earthmoving equipment for a 200 foot jump landing. It is now up to me to come up with a design for our landing, so that the sponsor can come and create it for us. For this I need to work out what kind of "launch" angle we will need on the ramp, to put it at the correct distance. I have used the basic trajectory formula to build jumps before, but nothing over 65 foot. I am worried that the drag involved with the speed required to clear 200ft is going to mess with my calculations, can anyone help?

Thanks!