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Merckle SM-67

First turbine-powered helicopter built and flown in Germany, the five-seat Merckle SM 67 development began as a private venture in 1956, but the third prototype, which flew for the first time on April 12,1961, was bought by the Federal Government and spent much of last year undergoing an official flight test and evaluation programme.
More refined than its predecessors, it has a fully enclosed cabin and is powered by a 406shp Turbomeca Artouste IIC shaft turbine, driving a three-blade main rotor and two-blade tail rotor.
Engine: 406shp Turbomeca Artouste IIC
Rotor diameter: 10.49m
Overall length: 12.75m
Height: 2.8m
Gross weight: 1700kg
Empty weight: 1037kg
Max speed: 220km/h
Cruising speed: 190km/h
Hovering ceiling OGE: 3500m
Range with full payload: 360km
Payload: 300kg

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