In the STAR TREK: VOYAGER episode 'Message in a Bottle', the EMH is sent back to the Alpha Quadrant. His program arrives on an experimental vessel the U.S.S. Prometheus, which is designed to split in to three parts so it can mount a 'multi-vector' assault on its enemies. The Prometheus was designed by Rick Sternbach who gave it an arrow-shaped head that is reminiscent of his early designs for Voyager. This is the regular-sized version of the model which is 5.5" (14 cm) long.