Show Model Makes Test Flight NEW YORK March h 10 UP UP UP-K Al model of a on which h Inventors In in- h have vc been working five fhe years cars had a successful light flight today In a top floor work work- workshop shop in West Thirty eighth street Power is supplied on the principle of a special rotor rotor rotor-a a variety of centrifugal centrifugal cen fan which fan which throws a 3 terrific La volume of wind against the wings The principle was developed by Serge Trey William m Howard Boward and Dr Alex ander The plane will rise vertically as slowly aS' aS you Jou wait It ta to Trey A mile Rh an hour say And It cant brought down just as gently straight ht down |