The Type 10 shuttlecraft was a compact, heavily built Starfleet shuttle carried by Defiant-class ships in the 2370s, represented on screen by the Defiant's shuttle Chaffee.
The Type 10 is introduced in the Deep Space Nine episode The Sound of Her Voice. The Defiant picks up a distress call from Captain Lisa Cusak, stranded alone on a planet wrapped in a dangerous energy barrier. Because the ship itself cannot pass through, Sisko, Bashir and O'Brien take the shuttle Chaffee down to the surface, where they find that Cusak has been dead for years and that her signal had passed through time.
The shuttle launches from a bay in the underside of the Defiant. Its angular hull and blunt nose were designed to echo the lines of the parent ship, replacing the small shuttlepods seen in earlier seasons.
The Chaffee is named after the astronaut Roger Chaffee, who died in the Apollo 1 fire.