Ryan STM2 PH-STM was acquired in the US in 2002, formerly registered N9761. Some 108 Ryans were used by the Dutch in the East Indies as trainers from 1940 and just before the Japanese invasion in 1942, 36 were flown out to Australia, including S-052

The Ryan STM-2 was a popular trainer type in the Neth East Indies. It was used both by the Army Air Force (KNIL) and the Navy. Several Navy Ryans were equiped with EDO floats to train future Do-24 and Catalina pilots. The STM-2 was flown with spad covered wheels but these have been removed during maintenance. This example is owned by the Koninklijke Luchtmacht Historische Vlucht.