Brian's monorail

This is the monorail system that Brian designed. The trolley and hoist are 25 ton capacity (equal to 16 normal size cars). The said this was the easy part, the hard part is to get the beam to where the light is in the picture. I don't understand a lot of what Brian does, but I know he is good at what he does. My mind simply can not comprehend these measurements and complexities. I guess that is why he does what he does and I do do what I do. He is so smart.