EF76 Nebulon-B escort frigate/Legends

The Nebulon-B Frigate was built before and during the Galactic Civil War. It was used by both sides of the battle as a support ship for the large capital ships, such as Imperial Star Destroyers and rebel Mon Calamari Cruisers. It was often used by the Rebellion during the war, with the most famous instance of this ship being the Nebulon-B-class Medical Frigate seen in the movies The Empire Strikes Back and Return of the Jedi.

Built by a subsidiary of the massive galactic Kuat Drive Yards corporation, the ship mounted twelve turbolaser batteries and twelve laser cannons. A Nebulon-B Frigate carried 24 starfighters.

The Nebulon-B was never very successful in its design role as convoy escort. Enemy forces soon found countermeasures and a number of those frigates defected to the Rebel Alliance. For a time the Rebel Alliance used them as command ships for raids into the Empire, but they were replaced by the far more capable Mon Calamari cruisers and modified for other uses or became dedicated fleet escorts.

Despite it´s shortcomings, it was a relatively cheap escort and was found in great numbers across the galaxy, despite it´s relative inefficiency and the vulnerability of the neck.

Some time before the destruction of the second Death Star, an improved version called the Corona was created specifically for the Galactic Empire. The Corona looked similar to two of the original type fixed together at a 45 degree angle, so that the bottom-facing "wings" made an upside-down "V" shape. It has sometimes been called the Nebulon-B2.