The Mk17 Avenger class was a type of assault shuttle used by the Royal Manticoran Navy. It wasa introduced in 1899 PD, with a smaller spaceframe designed to fit into the standard docking bays of RMN warships. While not as heavily armed or armored as larger vessels, it allowed its mothership to drop a full battalion (including an assault company) of Marines in a single run. Broadsword-class heavy cruisers were equipped with two of these vessels each. They were the only ship class to have them as standard issue. (JIR1)