| Empresa Aeronáutica Ypiranga | |
| Fate: | Merged |
| Successor: | Companhia Aeronáutica Paulista |
| Location City: | São Paulo, São Paulo (state) |
| Location Country: | Brazil |
| Products: | Aircraft |
Empresa Aeronáutica Ypiranga, commonly shortened to EAY, was a Brazilian aircraft manufacturer based in São Paulo and founded in 1931 by American Orton Hoover,[1] Brazilian Henrique Dumont Villares and German Fritz Roesler.
In 1914, Orton Hoover came to Brazil to assemble three Curtiss-Wright seaplanes purchased by the Brazilian Navy. He settled permanently in Brazil in 1928 and worked with Federico Brotero on the development of the IPT Bichinho[2] a single-seat sport aircraft. Henrique Dumont Villares was the nephew of Alberto Santos Dumont and Fritz Roesler was a German fighter pilot in World War I before going to Brazil. Roesler founded a flight school near São Paulo in 1923 and, together with George Coubisier, Francisco Matarazzo and others, the VASP airline.
Empresa Aeronáutica Ypiranga began operations with the production of the EAY-101 glider, a copy of the Stamer Lippisch Zögling, of which six were built. The second aircraft model EAY-201 was a copy of the Taylor Cub. The EAY-201 was a two-seat trainer aircraft and first flew in 1935, with only five examples built. EAY was then acquired by Companhia Aeronáutica Paulista in 1942. The EAY-201 now continued in production as the CAP-4 Paulistinha.[3]
| + align=center style="background:#BFD7FF" | Summary of aircraft built by EAY | ||
| Model name | First flight | Number built | Type |
|---|---|---|---|
| EAY Primário | 3 | High-wing Glider | |
| EAY Secundário | 6 | High-wing Glider | |
| EAY Ypiranga | 1935 | 5 | Two-seat Trainer Aircraft |