over 4 years
ago -
warthunder
-
Direct link
In August 1939, exactly 81 years ago, the BM-13N first appeared. Being the poster vehicle for the 'Katyusha' rocket launcher system, the BM-13N was infamous for the noise produced by its rocket's motors during launch, earning the nickname "Stalin's Organ" by German soldiers. http://pbs.twimg.com/media/EggOEy4VkAInC5W.jpg