. . . . . . . "one"@en . "2"^^ . . . . "The Aerbul HB-4 was a 1990s, Argentine contender in the IGC's World Class competition sailplane contest. It did not win and only two were built before a fatal accident terminated the programme."@en . "4724"^^ . "1091327441"^^ . . . . . . . "Planeurs"@en . "met"@en . "Aerbul S.R.L"@en . . "World class competition glider"@en . . . "15"^^ . . . . . . . "2"^^ . "1993-01-05"^^ . . . . . . "237"^^ . . . "in calm air"@en . "Horacio Bulacio Campos"@en . . . . . . "Aerbul HB-4"@en . . . "The Aerbul HB-4 was a 1990s, Argentine contender in the IGC's World Class competition sailplane contest. It did not win and only two were built before a fatal accident terminated the programme."@en . . "Wortmann FX 61-163 inboard, FX 60-126 outboard"@en . . . "67729107"^^ . . .