The ECS Fortunate (ECS-2801) was a United Earth Y-class cargo freighter that was in service with the Earth Cargo Service in the early to mid-22nd century. The vessel had a crew complement of twenty-three. In 2151, the Fortunate was commanded by Captain Jackson Keene. Matthew Ryan served as her first officer prior to 2151. (ENT: "Fortunate Son")
One of the Fortunate's last stops before it made an journey was at Jupiter Station. There, the station's cargo handlers improperly balanced the load of cargo module 2. Ryan and Shaw later had to reorganize the load to compensate for noticeable shaking caused by the module being off-balance.
For several months throughout 2151, the Fortunate was attacked by Nausicaan ships, under the intent of stealing the ship's cargo. In one such attack, the Fortunate was damaged, Captain Keene was injured, and one of the Nausicaans was captured. The incident was investigated by Enterprise NX-01, during which Ryan led the ship on a mission of revenge, a course of action that resulted in him later being demoted by Captain Keene. (ENT: "Fortunate Son")
The ECS Fortunate was upgraded with a second plasma cannon. In a discussion with Captain Archer, Captain Keene theorized that, with the onset of faster starships, he would need to upgrade to at least a warp three engine to stay in business. As a Y-class freighter, the Fortunate operated with its original warp reactor capable of propelling the ship to speeds of warp 1.8. With a warp three engine, it was possible to make what would have been earlier a five-year cargo run in six months. (ENT: "Fortunate Son")