The story
Aerolloyd Iguassú was founded in the beginning of 1933, in Curitiba, Brazil with initial financial support from the mate manufacturer Matte Leão. Initially two 3-passenger Klemm Kl 31A were bought and on July 20, 1933, flights between Curitiba and São Paulo started. In 1934, a second route to Joinville started and further extended to Florianópolis in 1935. That same year, three 5-seat Stinson Reliant arrived.
The airline faced serious technical difficulties related to the region where it operated – it is mountainous and subject to frequent weather changes, and to the lack of experienced pilots. Maintenance was also difficult because of lack of specialized mechanics. Finally on October 28, 1939, the airline was sold to VASP, which was particularly interested in the operational rights to fly from São Paulo southbound.
From Wikipedia’s article on Aerolloyd Iguassú, shared under CC BY-SA 4.0.3