Crawler-transporter
Videos
The crawler-transporters, formally known as the Missile Crawler Transporter Facilities, are a pair of tracked vehicles used to transport launch vehicles from NASA's Vehicle Assembly Building along the
Crawler Transporter
Crawler-Transporter 2 transporting the Artemis II stack to Launch Complex 39B in January 2026
Crawlerway junction at the LC-39 observation gantry. The right track leads to pad LC-39A (pictured with Space Shuttle Endeavour), while the left track leads to pad LC-39B.
Saturn V, service structure and MLP on top of a crawler
Big Muskie
Videos
Big Muskie was a dragline excavator built by Bucyrus-Erie and owned by the Central Ohio Coal Company, weighing 13,500 short tons and standing 22 stories tall. It mined coal in the U.S. state of Ohio f
Crawler-transporter
…the largest self-powered land vehicle in the world. While other vehicles such as bucket-wheel excavators like Bagger 288, dragline excavators like Big Muskie and power shovels like The Captain are significantly larger, they are powered by external sources. The two crawler-transporters were added to the…
Big Muskie in February 1999
Big Muskie near Chandlersville, Ohio, July 1974
Big Muskie near Freeland, Ohio, October 1973
The Big Muskie Bucket (looking south) at Miners' Memorial Park, Bristol, Ohio (about 17 miles west of Caldwell), May 2013