The U-55 orbital loadlifter, also known as the U-55 loadlifter and, informally, as a lifeboat, was a type of transport manufactured by Sienar Fleet Systems. It was used by the Resistance during its war with the First Order.
The U-55 loadlifter was designed by Sienar Fleet Systems. It was used heavily by the Resistance. However, the ship lacked shielding; making it vulnerable without an escort by starfighters or capital ships. During the First Order–Resistance war, many of the Resistance's craft were equipped with cloaking systems, developed by the technician Rose Tico using a computer system to baffle their energy signals.
The Resistance used these loadlifters to evacuate their base on D'Qar, earning the moniker "lifeboat". During the attack on the Resistance fleet, these transports were also used to evacuate the ships that ran out of fuel, such as the Ninka and the Anodyne. Thirty of the U-55 transports were used to evacuate the Raddus, but only six made it to Crait after the First Order fleet opened fire on them. They were subsequently abandoned when the remaining survivors fled aboard the Millennium Falcon.
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