SIM II
One S-2 trainer prototype obtained in 1930. Later redesignated SIM II in recognition of the designer, Ing. Sima Milutinovic. 110 hp Siemens Sh 14 engine. Side-side two-seat basic trainer. Lost to the Fizir FN in the competition for a JKRV production contract. The prototype served as a trainer until 1934, when it passed to civilian ownership.

Serial	c/no.	Prev. Identity	Delivered	Fate/Notes
	1		1930	to YU-PCV 1934, wfu 1937

References:

• LET No.1 (Yugoslav Aviation Museum)