Development of the Bonaventure-class corvette began during the final dark days of the Terran Alliance. As a pet project of Admiral James McKenna, the program continued without interruption while the Admiral removed corrupt politicians from power and formed the Terran Hegemony. Rushed into service to support the newly elected Director-General McKenna's plans to expand the Hegemony, the Bonaventure possessed excellent mobility and one of the most sophisticated sensor suite of the twenty-fourth century. During the Capellan campaign, however, the design proved to be under-gunned.
         Forced to rethink plans for deploying this ship, the Hegemony Armed Forces (HAF) paired the Bonaventure with the heavily armed Vigilant-class corvette. The two designs were often grouped into four-corvette squadrons on "naughty picture runs": data gathering sweeps through systems performed by HAF invasion forces before an assault. Later, with the boarders of the Hegemony now firmly established, the Bonaventure was shifted to picket duty. The corvette's exceptional long-range detection capabilities were invaluable for providing early warning of incursions and vectoring in better-armed ships to intercept intruders.
         As the "Age of War" began, some of the surrounding states began to probe the Hegemony boarders. One powerful Kurita destroyer squadron raided Imbros III, catching a HAF patrol squadron jumping in. Only the THS Cochran survived, leading three Combine vessels on a merry chase through the system's asteroid belt. Using her advanced sensors, the Bonaventure-class corvette ambushed the Combine squadron several times, using superior speed to escape. One enemy was destroyed and another crippled before the Cochran was eliminated. The remaining destroyer withdrew when HAF reinforcements arrived. The next Monsoon-class Battleship to enter service was named Cochran to commemorate the action.
         The more well rounded Vincent-class corvette replaced the Bonaventure-class when it entered service in 2432.