The IPT-6 Stratus, was a high-performance two-seat, high-wing sailplane.
[1] Stratus was conceived soon after its predecessor IPT-5 Jaraguá, created by Estonian engineer Johannes Lepper, who himself made the first flight of this sailplane.
[1] It was built with the fuselage caves were made of guapuruvu and freijó, and the bird ribs were also made of freijó.
[1] Data from Pereira de Andrade 1986, p. 123General characteristics Performance
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