PALUBA

From the article:

"The first Yugoslav warships in full commission weren't those taken over in March 1921, but were six ex-German minesweepers bought in Hamburg as tugs that July. They arrived in Tivat in autumn 1921, the first of them entering service several months later, carrying 90mm AA guns the Austro-Hungarian Navy in the Adriatic never knew. The history of these guns is an interesting one. First destined to be installed on heavy units which were never built, the old navy instead used them in the role of land AA pieces around main naval bases. It was via this route that several of them arrived in Boka Kotorska in 1917-18. Installed in positions occupied by Serb troops at the end of the war, they were not available for seizure by the French occupational forces, and thus became available for use on the purchased minesweepers.

Although the Skoda 90mm/45-caliber gun M.12 was a good weapon by World War I standards, a decade later it was due to be upgraded. In the meantime, the new 83.5mm gun had been introduced in the Yugoslav Royal Navy. As lack of funds prevented the purchase of new guns, and the old existing 90mm guns were in good condition, it was decided to have Skoda rework these to 83.5mm caliber instead. These reworked guns were delivered in 1931. From that time on, at least four of the Galeb class minelayers carried the reworked 83.5mm, with the remainder mounting one or two guns in their original form. This helps to explain the statements in various naval yearbooks of the thirties listing 90mm guns as late as 1941, even after the better informed editors of Weyer's had published correct information in 1939."

David

I have read D2 was a minesweeper employed also for training. Was it also a minelayer?