The Sentinel was a repulsorlift vehicle manufactured and employed by the Wookiees of Kashyyyk. It had room for one crewman, the pilot, and was armed with a light laser cannon mounted on an arm that protruded from the cockpit. This vehicle was effective at disrupting infantry formations, however it was weak against heavier armored units such as the AT-ST. It was also fast enough to be used for scouting. Upgraded versions of the vehicle were known as Heavy Sentinels.