|Shipyard||Kaiserliche Werft, Danzig (Werk 33)|
|Ordered||23 Jun 1915|
|Laid down||15 Dec 1915|
|Launched||6 Oct 1916|
|Commissioned||21 Jun 1917|
|Successes||4 ships sunk with a total of 8,496 tons.|
1 ship damaged with a total of 324 tons. (View ships hit by U 89)
|Fate||12 Feb 1918 - Rammed and sunk N of Malin Head by HMS Roxburgh at 55°38'N 7°32'W. 43 dead (all hands lost).|
The wreck of U 89 has been photographed by Jim Tierney of 10barpics.com (See https://xray-mag.com/content/u89-exploring-u-boats-ireland). The casualties include Bulgarian midshipman Mikhail Michoff, who was serving on board.
There was another U 89 in World War Two
That boat was launched from its shipyard on 20 Sep 1941 and commissioned into the Kriegsmarine on 19 Nov 1941. Take a look at U 89 from WWII.