. . "15"^^ . . "placard, smooth air"@en . . . . . "180"^^ . . . . "The IIL IS-4 was a single seat, high performance sailplane designed by Iosif \u0218ilimon and built in Romania in the late 1950s."@en . "Intreprinderea de Industrie Local\u0103 / Uzinele de Reparatii Material Volant-3 at Bra\u0219ov"@en . "The World's Sailplanes , pp.192-3, Romanian Aircraft Constructions 1905-1974"@en . . . . . . . . "60"^^ . "6513"^^ . . . . . . . . . "IIL IS-4"@en . "Single seat Standard Class Sailplane"@en . . "220"^^ . "equipped"@en . . "22.9"^^ . . . . . . . "30"^^ . "minimum, at"@en . . "7.1"^^ . . . "1.6"^^ . . "The IIL IS-4 was a single seat, high performance sailplane designed by Iosif \u0218ilimon and built in Romania in the late 1950s."@en . . . "met"@en . "*Rough air speed max: \n*Aerotow speed: \n*Winch launch speed:"@en . . . . . . "G\u00F6ttingen 549 apart from tip G\u00F6ttingen 693"@en . . . "16"^^ . . . . "320"^^ . "41630329"^^ . . "997085137"^^ . . . . . . . . . "One"@en . "14"^^ . . "0.64"^^ . "1959-06-05"^^ . . . . . . . .