Careful Inspection of the GBT Track
Green Bank Engineer John Shelton carefully examines the metal plate that runs around the track of the Green Bank Telescope. The track goes 25 feet into the ground to remain sturdy and level. The GBT’s four trucks drive the 17-million pound telescope around on this circle. Each truck has four wheels, meaning each wheel supports one million pounds. Maintenance of this track is critical to the accuracy of the GBT’s observations.