[crollison]

For questioning if the Truss is too expensive or over-engineered there is another thing to look at. If you are going to span the full distance of the field without sag, you have to use a truss design or a seriously heavy duty steel beam that would require machinery to set into place. An aluminum truss can be set by people and span the distance necessary without sag and provide the durability necessary for robots potentially running into it if they were oversized.