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Описание
Страна : Великобритания
Год : 1971
Планер
Single-seat very high performance Open Class sailplane
Фотографии
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Jane's All the World Aircraft 1974 / 03 - Sailplanes
Sigma 1 high-performance competition sailplane, with flaps and spoilers retracted
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Jane's All the World Aircraft 1972 / 03 - Sailplanes
Sigma 1 single-seat high-performance competition sailplane
