NRG Series

The NRG Series is a set of railguns developed by the Immortal Union by the Military Design bureau for naval use. It includes all sizes developed by the MDB, from 5" guns to 18" guns. These railguns were a development from the RG-1A1, the world's first railgun, also developed by the MBD. When the MDB tested the RG-1A1 in January 2004 at Desert HQ the Immortal Council was so impressed that they immediatly ordered it to go into further development and split into two series, the NRG Series and the ARG Series. The first in the NRG Series was the NRG-5A1, a 5" railgun for use on the Glorious-Class Guided Missile Destroyer (Later classified Railgun Destroyer), which first entered service in 2011 onboards D33 IUS Valiant.

NRG-4 Line
The NRG-4 Line is the smallest of the NRG Series at a caliber of 4". It was developed for use on frigates. but was removed from service after destroying F65 IUS Dubai. This line received the nickname of Danger early in its service.
 * NRG-4A1
 * NRG-4A2

NRG-5 Line
The NRG-5 Line is a group of 5" railguns developed for use on destroyers. The line is nicknamed Archer. This was the first of the NRG Series to be fired and is the most widely used version. During World War 3 the IU agrees on allowing the United Kingdom, the Netherlands and India to modify it for their own use. They create the R5A, modifying it for their own usage. 3 versions are made the R5A-EU, the R5A-IN and the R5A-UN.
 * NRG-5B


 * NRG-5B1
 * NRG-5B2
 * NRG-5B3
 * NRG-5B4
 * NRG-5B5
 * NRG-5B6
 * NRG-5B7
 * NRG-5B8
 * NRG-5B9
 * R5A
 * R5A-EU
 * R5A-IN
 * R5A-UN

NRG-16 Line
The NRG-16 Line is a set of 7 16" railguns designed for use aboard battleships and airborne carriers. The line is nicknamed Might for its power. This gun was also send to the UK, the Netherlands and India, but also to Italy, Byzantium, Japan and France. Together they create the R16M line for their own battleships.
 * NRG-16C
 * NRG-16C1
 * NRG-16C2
 * NRG-16C3
 * R16M
 * R16M1
 * R16M2

NRG-18 Line
The NRG-18 line is a 18" railgun of which 2 types were made. These only operated from the IUS Immortal, from 2021 to 2024, when she was destroyed by Soviet forces. the decision to make a ship using 18" guns was controversial as no Coalition navy had 18" guns. The only reason this project was approved was because of rumours of a ship with massive armour and even larger guns being made by the Soviets and Chinese. The lines nickname was Giant.
 * NRG-18D
 * NRG-18D1