U-99 under construction at Friedrich Krupp Germaniawerft, Kiel, Germany.

 

U-99 seen underway, date and location unknown.

(Photo courtesy of John Asmussen)

 

Korvettenkapitän Otto Kretschmer, the only commanding officer of U-99. During his career as commanding
officer of U-23 and U-99 he sank or damaged over 300,000 tons of Allied shipping.