ECS-913

The ECS-909 was a Federation starship, a ''Kobayashi Maru-type troop transport in Earth Cargo Service and Starfleet service in the 2250s decade. 

Service history
A few weeks following the Battle of the Binary Stars, the ECS-913 served as troop transport in one of Starfleet's first major offenses of the Federation-Klingon War of 2256-2257. The 913 was one of the troop transports delivering ground troops to retake Priors World from the House of Mo'Kai.