When first conceived the Mercury Class was expected to have twice the capacity of a Jupiter. This was reflected in the air wing of the Block 0. Originally standing at 160 vipers divided between 8 squadrons and supported by 40 Raptors. However, overtime this has changed, with each individual ship being differently out fitted, to the point that only the Eternal retained the original air wing size at the time that the Atlantia was launched. Viper squadrons were coded blue, red, green, yellow, orange, purple, black and white.