 Only eight RX-78 suits were produced during the One Year War, although continual remodelling and upgrading created the impression that there were more than eight units.Although the RX-78 suits are designated RX-78-1 to RX-78-8, the final digit indicated the design version of the unit, rather than its actual number.In addition, the Earth Federation Forces started a G-4 project which consist of four RX-78s for each of its branches, and EFSF (Earth Federation Space Force) used information of the RX-78-4 to develop the RX-78NT-1.