Standing in front of one of the crawler transporters at NASA Kennedy Space Center, Director of Space Shuttle Processing Mike Wetmore addresses invited guests (behind him) and the media on the occasion of the 40th anniversary of the crawler transporters. Media representatives and invited guests had the opportunity to tour one of NASA's two crawlers. This included the driver cab and engine room. Guests included current drivers and operators, as well as drivers from the Apollo Program. In January 1966, the crawler completed its first successful move with a 10.6-million-pound launch umbilical tower. It moved three-quarters of a mile in about nine hours. Throughout 40 years of service, the two crawlers have moved more than 3,500 miles and carried seven vehicles.