The Sznyzer SG-VI was a utility helicopter built by Engineering Products of Canada Ltd for the SG-VI-C variant. The SG-VI-D variant was built by Intercity Airlines. The “Gray Gull” as the “D” variant was known, was developed as a utility helicopter. Due to numerous contractual and operational problems, the first prototype was deemed unsafe, since the right quality controls were not in place for its construction. The second “D” unit was built and sanctioned by Intercity Airlines. This “D” model has an enclosed cabin, but the airframe did not have a skin. Instead the tubular piping was exposed. The four-bladed rotor was driven by a single Franklin engine producing 178 horsepower. The Gray Gull was later re-engined with a 200 horsepower unit and became the SG-VI-E. The project ended when an investor who purchased the rights did not go through to actual manufacturing.
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