While in flight, the wings would fold outwards for greater stabilization, while during landing procedures the wings would fold inward, reducing the vessels silhouette. It had three wings: one tall, dorsal stabilizer that remained stationary, and two lower articulated flanking wings. Measuring 20 meters in length, the Lambda-class could attain a max speed of 850 kph, and was one of the more common Imperial ships found throughout the galaxy-along with its nearly-identical counterpart, the Sentinel-class landing craft. The shuttles were often used by high-ranking Imperial officers and such dignitaries as Darth Vader and Emperor Sheev Palpatine, but were more commonly found ferrying stormtroopers or cargo.Ī hyperdrive-equipped multi-purpose transport, the Lambda-class T-4a shuttle was developed by Sienar Fleet Systems for use in the Imperial Navy. The Lambda-class T-4a shuttle, also known as the Imperial Lambda, Imperial Transport or the Imperial Shuttle, was a multi-purpose transport with a trihedral foil design used by the Galactic Empire during the Galactic Civil War, and was considered an elegant departure from the standards of brutish Imperial engineering.