The final moments of the Austro-Hungarian battleship SMS Szent István,which sank on June 10 1918 after getting struck by a single Italian torpedo launched by a motor torpedo boat (MAS in Italian).
The ultimate reason for the loss of the ship was poor stability derived from a fundamentally flawed design, found in sea trials to be so unstable the ship was banned for doing sharp turns in fear that she would simply roll over and sink.
A direct consequence of the dual monarchy’s policy of sharing equal workloads between the Austrians, whom actually had shipbuilding experience, and the Hungarians, whom had none.
kaisShe also had poor underwater protection,it had an expansion space for underwater explosions, but it was too narrow.
In this the Austrians were in good company.