 Nyorai kupfuurira kweiyi ndima - O 13 yakamhanyira muchikepe chokuredza, HD 7, kubva kuDen Helder muSchulpengat musi wa 26 September 1933, ichinyudza HD 7. Nechikepe chehanzvadzi, O 13 vakapinda Brussels International Expositionmuna 1935. Gare gare gore iroro O 13, nengarava dzeDutch,,, uye, vakafamba nomugungwa reNorth Sea, vachimira paGothenburg neOslo. Muna 1937 O 13 akaita konvoi basa muStrait of Gibraltar panguva Spanish Civil War, pamwe Hertog Hendrik,,, uye O 15. 