Trail_King_s300_transporter_rear_operator_platform1.jpg (44380 bytes)
Trail King S300 Superload Transporter Operator Control Station section

This operator is responsible for positioning all of the transporter sections to accomplish the turns!
He didn't travel on his feet over the entire trip! He rode with the front tractor section-truck.
It was only necessary to leave the truck's cab when turns were required. Some portions of the
trip were under very slow speeds, such as when bridges had to be crossed, almost walking speed!

Seen above is the operator platform which includes the hydraulic control box, with pressure guages atop
the control unit. All of those hoses lead to control component cylinder valves operating within the transporter
assembly hydraulic systems.  One requires viewing the transporter hydraulic drawing to properly describe
the technical control variations that provide the capabilities executed by operating the specific control features.

Generally, the following positioning elements form the total maneuver control design, "as I see it":
1. Turning paths-adjusted frequently by changing pivot section angles from transporter centerline;
2. Load Elevation-adjusted by using the load lifting tower hydraulics at ends of the main load section; and:
3. Load distribution for crossing bridges of all kinds-adjusted by lengthening the spacing between axles.

The reason for all of the sophisticated specialization of carrying "Superloads":
The transporters that carry "Superloads" often have to "turn around a dime", and cross bridges carefully!
Such transporters are very long! The Trail King S-300 for example spans 187 feet, measured from the tractor front
bumper to the back bumper of the operator section! The transporter is also very heavy,
weighing nearly 200 tons, when NOT loaded with the reactor head closure assembly!