The Y-4 Raptor-class transport was a military transport shuttle manufactured by Incom Corporation. They were quite commonly used during the Hunt for Zsinj as well as by the warlord Zsinj himself as transports.
Designed to move fast and deploy its cargo quickly, the Y-4 had a meter-thick heat shield and used a spray-on ablative coating for rapid planetary landings. They used a set of S-foil-actuated wings to assist in braking and maneuvering. Y-4s also had light armament for self-defense and infantry support.
The Y-4 was capable of transporting 40 troops and 300 metric tons of equipment, which was rapidly unloaded by three separate folding assault ramps on the port side.
When Zsinj commissioned the Raptors, he chose the Y-4 as their primary landing craft. Their widespread use in enforcing Zsinj's will caused the transport to be linked with the "Raptor" name, and New Republic military personnel took to calling the ships "Raptor Incubators".
The New Republic captured several Y-4 transports in their campaign against Zsinj, and Han Solo even appropriated one of their transponder codes for use on the Millennium Falcon. Incom also produced a civilian version of the Y-4, which was unarmed, less heavily armored, and slower.
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