Tb 89F 01 Mar 1916

27 Mar 1916 supporting air raid on Piave Vecchia. 23 May supporting air raid against Padua. 10 Aug 1916 supporting air raid when engaged by enemy destroyers. 09 Oct 1916 while under way from Pola found flying boat L124; towed her to Parenzo. 23 Oct 1916 escorted Teodo to Cattaro. 29 Oct 1916 at Gjenovic. 28 Nov 1916 in attack on Otranto Straits; rammed by Tb 82F. 29 Nov 1916 to Pola for repair.

25 Jan 1917 at Gjenovic. 21 Apr 1917 minesweeping. 24 May 1917 escorting German UC 24 and UC74 out of the Bocche; former torpedoed and sunk by French submarine Circé. 17 Jul 1917 one man killed by accidental explosion of depth charge during sweeping operations. 05 Aug 1917 from Cattaro to Pola. 13/14 Aug 1917 supporting air raid on Venice. 28 Nov 1917 damaged by collision with Dukla while under way to attack Italian coast; returned to Pola.

12 Feb 1918 rescued crew of torpedoed SS Pelagosa off Lussin. 18 Apr 1918 at Gjenovic. 12 Jun 1918 at Pola. 16 Aug 1918 struck mine in the Bocche while exercising; one lost. 22 Aug 1918 towed in downed flying boat K400.

To Portugal as Sado; discarded 30 Jul 1940.