Chubb Squadron was a BTL Y-wing starfighter squadron in the navy of the Dimok government. During the Sepan Civil War, they attempted to attack an Imperial Navy task force led by the Victory I-class Star Destroyer Protector. When the Ton-Falk-class escort carrier Tropsobor began transferring groups of TIE/ad starfighters to the Star Destroyer, they attempted to target them, but were defeated by Maarek Stele and several other TIE pilots.