By the looks of it, this appears to be a Dutch aircraft: red, white and blue, and even..... orange! The Paraguayan national colours however, are similar to the Dutch', and orange is indicative for training aircraft of the Paraguayan air force. The type however is Dutch, a Fokker S11, in this case a FIA Brazil-built license example. It is part of an impressive row of aircraft preserved at the main gate of Ñu Guazú.

Hidden in one of the hangars at Pirassununga, an FIA-built Fokker S11, designated T-21 in Brazilian air force service.

Ex 0027, one of eight former Brazilian AF Fokker S-11s used by the Paraguay AF between 1972 and 1978. Seen outside Civilian Aviation Authority offices close to Silvio Pettirossi Airport where it was displayed for several years. Moved to nearby Ñu-Guazú air base circa 2009 and displayed as '0107'.

Along with the T-6 Texan, Brazil relied heavily on the S-11 for basic training until the early 1970s, 95 of the 99 operated being built by Fokker Brazil.