Thanks Martijn, Interesting but still confusing. As far as I know, the following were seen operational with new serials LM-4186, LM-4189, LM-4191, LM-4192 Other survivors are R-384 (Iswahyudi, l/n jul18), R-387 (Bandung, l/n jan09), R-395 (Kalijati, l/n feb24) Onto an attempt at an overview of aircr...