Fighters of the TIE Series had hulls reinforced with titanium. A titanium alloy was also used in the construction of hulls for X-wing starfighters. Flirt was composed of a titanium shell. Double doors at an Imperial research facility on a frozen moon had a titanium bar on them. However, it was bent by one or more of the mad clones there and thus failed to contain them. The blast doors of the Command Base asteroid in the Roche asteroid field were constructed of enhanced titanium.