was launched, unfortunately this project did not reach completion due to the outbreak of April war. In the pre-war period two SIM-XII-H aircraft were in accidents both in Boka Kotorska in 1940. Both aircraft were designated for disposal, so the Navy Command requested approval to install the floats from these planes onto new aircraft ( onto the 2nd series of SIM-XII-H ) considering that these planes were equipped with instruments for instrumental ("blind") flying. When the approval was given, the floats were installed into new planes, so the aircraft in the second series were enabled for use before the war broke out. Operators Royal Yugoslav Air Force 9 aircraft Yugoslav Royal Navy Specifications See also Notes References External links SIM-X (SIM-XI i SIM-XII-H) www.airwar.ru airserbia.com Рогожарски СИМ-XII-Х SIM-XII-H 1930s Yugoslav military aircraft Floatplanes Trainer aircraft Parasol-wing aircraft Single-engined tractor aircraft