The Mercury-class Battlestar Pegasus (Colonial Fleet Battlestar Group 62) is a substantially newer, larger and more powerful version than the Battlestar Galactica. It is nearly twice the size, but only possesses around half the crew due to greater automation. Even after she lost almost a third of its crew at the Cylon attack at the Scorpio shipyards, the Pegasus possessed approximately 1,753 crewmembers at the time it encountered Galactica.The Pegasus possessed vastly superior weapons, flight decks, and armor compared to the Galactica. Its forward weapons battery can devastate a Cylon Basestar with a single salvo. It is armed with large anti-ship KEWs, anti-fighter/missile batteries and nuclear weapons. It possesses much larger flight decks than Galactica, two on each side of the ship. The Pegasus had four fully-operational squadrons of Vipers at the time it encountered Galactica and automation systems that allowed the production of new Vipers to help replace Galactica's losses. Unlike Galactica, Pegasus had flight simulators on board to facilitate the training of new pilots.