The Skysprite was a wedge-shaped starfighter with a cockpit large enough to seat two. Like the Delta-7 model, the Delta-12 featured no onboard hyperdrive, though the Skysprite could link up with a Syliure-31 long-range hyperdrive module to reach lightspeed. The model featured no weaponry, though it was believed that certain models were modified by Jedi pilots with laser cannons.
One of these starfighters was carried aboard Outbound Flight when the project launched in 27 BBY. It was intended for the use of Obi-Wan Kenobi and Anakin Skywalker, who planned to stay aboard Outbound Flight until its arrival at the Unknown Regions and then use it to return to Coruscant. However, they were forced to leave earlier aboard a shuttle with Supreme Chancellor Palpatine, and in the process left the Delta-12 aboard the doomed vessel.
Perhaps the last of its class, the Delta-12 abandoned onboard Outbound Flight was rediscovered forty-nine years after the launch of the project by Luke and Mara Jade Skywalker. The two Jedi Knights used the Delta-12 to breach a Dreadnaught cruiser captured by the deadly Vagaari.