The Starfleet Corps of Engineers (also referred to as "Corps of Engineers" or SCE) was a special projects division of Starfleet, assigned to deal with projects and missions requiring high degrees of engineering expertise.
The corps was founded in 2156, as part of the United Earth Starfleet. They were originally an assortment of Starfleet engineers sent to build Starbase 1 in the Algeron system. The group informally called themselves the Starfleet Corps of Engineers. Once the base was completed, Admiral Gardner made the title official, as he wanted to keep the efficient crew together and move them to a new project. (ST reference: Federation: The First 150 Years)
Prior to the late 23rd century, the SCE was considered a low priority by Starfleet, in terms of providing equipment and ships. In 2264, under the orders of then SCE commander Captain Robert Andreassi, they received three decades-old decommissioned Daedalus-class ships for their use: the USS Lovell, the USS Masao, and the USS Zander. (SCE eBook: Foundations, Book One; Star Trek Magazine #162: "Blast Off!")
Circa 2270, Starfleet Corps of Engineering personnel were dispatched to Talin IV to study the wreckage of the USS Enterprise, under the belief that its nacelle was being drawn away from the ship and into subspace. Later, the Corps was assigned with converting one of the gas giants in the Talin system to provide food for an ancient spaceborne lifeform dubbed "The One". (TOS novel: Prime Directive)
In 2279, Starfleet created a new position, the Starfleet Corps of Engineers Command Liaison. Mahmud al-Khaled, formerly the commander of the Corps detachment aboard the USS Lovell, was the first to hold this position. It was later held by Admiral John Harriman, and then Captain Montgomery Scott. (SCE eBooks: Foundations, The Belly of the Beast; TNG short story: "Full Circle")
The Starfleet Corps of Engineers was headed by the Starfleet Corps of Engineers Command Liaison, based in the Tucker Memorial Building on the grounds of Starfleet Headquarters. (SCE eBook: The Future Begins)
The Starfleet Corps of Engineers continued to maintain their own dedicated vessels throughout the 24th century, including older Oberth-class vessels such as the USS Trosper in the 2360s. By the 2370s, however, it was decided to give the SCE four newly launched Sabre-class ships: the USS da Vinci, USS Khwarizmi, USS Musgrave, and USS T'Pora.
The chain of command on SCE ships differed from other Starfleet vessels in that, while the head of the SCE team served also as the ship's first officer, this person also reported directly to the Starfleet Corps of Engineers Command Liaison. (SCE eBook: Grand Designs)
An SCE team commanded by Captain Ochoa worked on Naia VII, mining materials vital to rebuilding Starfleet's defenses following the Battle of Wolf 359. They were ordered to meet specific quotas and to maintain those quotas despite the dangers, which led to reduced safety standards. Though an engineering achievement, the mining operation was difficult and dangerous, and the personnel particularly stressed. In 2368, a mine flooded, killing eight and injuring twenty-two. (TNG - Assimilation² comic: "Issue 2")
The Corps of Engineers had difficulty in finding ways to combat the Dominion's small but devastatingly powerful fighters until Benjamin Sisko and his crew captured one on Torga IV in the Gamma Quadrant in 2373. (ST reference: Starship Spotter)
A team of thirty-five SCE engineers were usually assigned to Deep Space 9. However, following the Dominion War, only half of that contingent remained on the station, resulting in any qualified engineering personnel being put to work on a major refit of the station in 2376. (DS9 novel: Avatar)
After Deep Space 9's fusion core was destroyed as a result of sabotage by Kitana'klan, the SCE worked with Nog to obtain a new one from Empok Nor. The SCE team had left the station by the time of the Gateways Crisis, leaving them unable to repair Bajor's industrial replicators. (DS9 novel: Demons of Air and Darkness; SCE eBook: Cold Fusion)
The SCE was responsible for the new redesign of Earth Spacedock.
An SCE team was stationed on Deep Space 3 under command of Lieutenant Commander Kareem Mussad. Following the Borg Invasion of 2381, this team led "Project Reassimilation", an effort to reverse engineer the deactivated and abandoned technology left behind by the Caeliar. (ST novel: A Singular Destiny)
- USS Lovell
- USS Masao
- USS Zander
- USS Trosper
- USS da Vinci
- USS Musgrave
- USS T'Pora
- USS Khwarizmi
- USS Orion