SM U-17 (Austria-Hungary)
SM U-17 or U-XVII was a or U-boat of the Austro-Hungarian Navy ( or ) during World War I. U-17 was laid down in Germany in April 1915 and shipped in sections by rail to Pola in August, where she was assembled. She was delivered to the Austro-Hungarian Navy at the end of September and commissioned in October 1915. U-17 primarily operated from Cattaro, patrolling off the Italian and Albanian coasts. The submarine had several opportunities to sink merchant ships and warships throughout the war, but could only sink one unidentified sailing vessel in January 1916 and one Italian destroyer in July 1916 as part of an effort to disrupt the Otranto Barrage. At the end of the war, U-17 was undergoing repairs at Pola. She was handed over to Italy as a war reparation and scrapped in 1920. Design and construction U-17 was a small, coastal submarine that displaced surfaced and submerged. She featured a single shaft, a single Daimler diesel engine for surface running, and a single electric motor for submerged travel. U-17 was capable of up to while surfaced and while submerged at a diving depth of up to . She was designed for a crew of