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Bölkow Phoebus
The Bölkow Phoebus is a glass fibre composite competition sailplane, designed and produced in Germany in the 1960s. Large numbers were built, achieving success at some national contests, and many remain active.
==Design and development==
The Phoebus was designed at a time when glider manufacturers were moving away from all-wood aircraft towards composite structures. Bölkow had been amongst the early leaders of this change with their Phönix T sailplane in the late 1950s, which used balsa/glassfibre sandwich construction. The Phoebus was built in the same way.〔
It is a shoulder wing competition sailplane. The first aircraft, the Phoebus A, was designed to Standard Class rules, with a span of 15 m. Its straight tapered wings have an aspect ratio of 17.1; airbrakes are fitted at 70% chord. The fin and rudder are straight edged and only slightly tapered, with a high aspect ratio all moving T tail mounted at the tip. The fuselage is a monocoque. with the cockpit, ahead of the wings, enclosed with a one piece canopy. The Phoebus A has a monowheel plus tail bumper undercarriage, but in the later variants the main wheel is retractable.〔 The Phoebus C has a braking parachute.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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