Sato ' s Hammer The Sato ' s Hammer was a YT - 2400 light freighter used by the Iron Squadron . Description . The " Sato ' s Hammer " was a beat - up YT - 2400 light freighter that lacked a functioning hyperdrive . It was equipped with several laser cannon s including a top double turret Cannon . " Sato ' s Hammer " was also equipped with deflector shield s . The ship also had an airlock and a docking ring for connecting with other starship s . The freighter was also equipped with cargo boxes that were loaded with explosives . History . During the Age of the Empire , the " Sato ' s Hammer " served as the base of operations for a small rebel cell at Mykapo . calling themselves the Iron Squadron . The cell was led by the human Mart Mattin ' s father and consisted of Mart , the Theelin Gooti Terez , the human Jonner Jin , and the astromech droid R3 - A3 . Following the death of Mart ' s father , Mart took command of the " Sato ' s Hammer " and the Iron Squadron . The cell maintained no contact with other rebel groups including his uncle Commander Jun Sato , who led the Phoenix Cell In 2 BBY , the " Sato ' s Hammer " was attacked by an Imperial advance patrol . The Galactic Empire had imposed martial law on Mykapo . The starship was involved in a skirmish with TIE fighters and a " Gozanti " - class cruiser . During the fighting , the ship sustained damage to her hyperdrive . Shortly later , the Phoenix Leader Hera Syndulla arrived with Phoenix Cell and wiped out the starfighters . This allowed the " Sato ' s Hammer " to drop explosive - laden cargo onto the " Gozanti " cruiser . Later , Hera docked her starship the " Ghost " with the " Sato ' s Hammer " . She and her crew Ezra Bridger , Sabine Wren , and the astromech Chopper visited the " Sato ' s Hammer " and found the ship in a dilapidated state . Chopper got into a brief fight with R3 - A3 , who was protective of the ship ' s systems . Hera and her crew tried to persuade Mart and the Iron Squadron to leave with them . However , the Iron Squadron refused to leave Mykapo , which they regarded as their home . Meanwhile , Grand Admiral Thrawn dispatched Admiral Kassius Konstantine to deal with the Iron Squadron . While Hera and the rest of Phoenix Squadron left , Ezra , Sabine , and Chopper stayed behind to convince the Iron Squadron to leave . In order to win them over , Sabine and Chopper helped R3 - A3 to repair the damaged ship ' s hyperdrive . The three managed to repair the hyperdrive but their efforts came to naught when Mart diverted the power to the cannons and deflector shields . When Admiral Konstantinos arrived , Mart wanted to take on the Empire even though the " Sato ' s Hammer " was not in a condition to fight . Ezra and Sabine managed to convince the other members of Iron Squadron to leave with them . The " Sato ' s Hammer " was no match for the Imperial forces and its engine was damaged . One of Konstantine ' s TIE bombers planted a magno - mine on the ship ' s hull . Konstantine ' s allowed Mart to send a distress signal in order to lure his rebel friends into a trap . However , Hera and Ezra saw through this trap and devised a counter - strategy . They led Konstantine ' s TIE fighters on a pursuit while Chopper and R3 - A3 removed the mine . With the ship unable to jump into hyperspace on its own , Hera magnetized the " Ghost " to the " Sato ' s Hammer " . Commander Sato ' s forces then ambushed Konstantine ' s ship ' s . Mart then dropped the magno - mine on Konstantine ' s " Arquitens " - class command cruiser , damaging the vessel . The " Sato ' s Hammer " then managed to flee into hyperspace shortly after Thrawn arrived on his Imperial Star Destroyer " Chimaera " . The " Ghost " ferried the " Sato ' s Hammer " back to Chopper Base on the planet Atollon .