The Siemetzki ASRO 4 is a German two-seater, side-by-side, turbine-powered ultra-light helicopter first displayed at the 1964 Hanover Air Show. The Siemetzki ASRO 4 is powered by a MAN-Turbo-6012 shaft-turbine engine providing a top speed of 160 kmh and an endurance of one hour and twenty minutes flying time. Research Siemetzki ASRO 4
 
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