GR - 75 medium transport / Legends The GR - 75 medium transport , also known as the Gallofree medium transport or Rebel transport , was a clamshell - hulled transport produced by Gallofree Yards , Inc . Many of these transports served the Alliance Fleet during the Galactic Civil War , including playing a pivotal role in the evacuation of the Rebellion ' s Echo Base during the Battle of Hoth . Characteristics . A sister design to the civilian GR - 45 model , the GR - 75 was used by freight drivers and shipping firms to haul cargo . The transport ' s outer hull was like a thick shell with the interior entirely open for cargo pod s . This open - space design could fit up to 19 , 000 metric tons of cargo into the 90 meter long ship . Modular cargo pods greatly sped up the loading and unloading process . When the transport was at its cargo capacity , a magnetic shield locked the modules in place , while at the same time kept out the vacuum of space . The factory model included space for forty passengers , but almost all ships traded it for increased cargo storage . Focused entirely on maximizing cargo space , GR - 75 transports were armed with four turreted twin laser cannons , a deflector shield produced by the shield generator pod above the stern , a meager Class 4 hyperdrive , and a sublight engine array capable of achieving a top atmospheric speed of 650 kilometers per hour . While inexpensive , the GR - 75 was notorious for its high maintenance requirements . Some of these transports were used as shuttles for high ranking Rebel Alliance personnel . History . The design proved popular with Galactic Republic forces , and the ships were used as resupply vessels during the Clone Wars . The Galactic Empire used at least one known unit , the " Shackles of Nizon " , which saw service as a slave ship . Many GR - 75 transports were acquired by the Rebel Alliance due to their low cost and ready access to spare parts . The transports had hulls impenetrable by Imperial sensors and were additionally equipped with sensor jammers , making them undetectable to Imperial sensors , thus reducing the chances of Imperials detecting Rebel supply runs . Not intended for combat , GR - 75s were commonly placed at the center of Alliance fleet formations and relied on starfighter support in blockade - running missions . After Gallofree Yards went bankrupt in 3 BBY , the majority of the remaining stock of ships found its way into the Alliance fleet . Several GR - 75 transports were part of a fleet led by the " Salvation " in 1 BBY . The fleet was attacked by Boba Fett , who was trying to capture Juno Eclipse . The fleet then jumped to Kamino on the order of General Rahm Kota to take out the Timira City Cloning Facility . After the battle , several GR - 75s were used as decoys while the imprisoned Darth Vader was taken to the Dantooine base aboard the " Rogue Shadow " One of the GR - 75 ' s most famous actions was the evacuation of Rebel personnel during the Battle of Hoth . More than half of the GR - 75s were destroyed , as the Imperial blockade proved too much for the Rebel defenses , though thirteen escaped safely , due to the escort afforded by the X - wings of Rogue Squadron , as well as the covering fire provided by the V - 150 anti - orbital ion cannon . The Alliance used the GR - 75s for almost any purpose they could find and the ships became so ubiquitous that they became commonly known as Rebel medium transports . They were primarily used to transport supplies , equipment , and troops . Some were modified to be fuel tanker s for long range starfighter missions or for smaller ships . They also were used as kamikaze vessels , as demonstrated during the assault on the Fondor shipyards and the Battle of Endor , where they functioned as fire ships and were loaded with explosives . Several vessels fell into the hands of the Hutt Cartel who used them to land troops and attack vehicles on Hypori for the Ground Battle on Hypori . At least one GR - 75 was used to make up a secret retreat in 137 ABY , and several were used during the Evacuation of Dac . Behind the scenes . The GR - 75 first appeared with the release of and its tie - ins . The GR - 75 has been re - imagined in LEGO form with the release of " . "