1961  Berger BX-50 (Switzerland) was a single-seat light helicopter flown in prototype form in the 1970s. Powered by a 67kW Continental C90 flat-four engine. M.Taylor "Jane's Encyclopedia of Aviation" The first-flight date in the above information is wrong. First flight trial took place March 16th, 1961. Prototype was seriously damaged after another series of tests around the mid-60's. |
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