UB-8 was originally one of a pair of UB I boats sent to the Austro-Hungarian Navy to replace an Austrian pair to be sent to the Dardanelles, and was broken into sections and shipped by rail to Pola in March 1915 for reassembly.
UB-8 bio je originalno jedan od para brodova UB I poslanih Austrougarskoj ratnoj mornarici radi zamjene austrijskoga para poslanog na Dardanele, pa je razlomljen u sekcije i prevezen željeznicom do Pule u ožujku 1915. na sastavljanje.