NEWS BY MAIL.

Hokitika Guardian, 15 August 1922, Page 1

NEWS BY MAIL.

U.S. II ELI COPTER TESTS. WASHINGTON, .lime 19 Apparently successful trials of a helicopter were to-day earned out in the. environs of Washington, in the prosenee of experts of the United Stales Navy Department. All 1 Henry Berliner, the inventor ot the helioeoptcr, succeeded ill raising the machine three times to a height of seven feet. lie also made it rise and fall and remain poiseil in the air. Finally the machine made a half-mile circuit of a race-track. The Navy Department experts refuse to comment on the machine's achievements pending the publication of the Department’s ofliciul report. Mr Henry Berliner has been carrying out important tests with heliocopters in tile United States for several years. Naval experts there are interested in tliis and other experimental heliocopters, owing to the supreme value they would have, hovering motionless at any desired height, in directing long-range naval gunfire - . The Berliner helicopter lips two through tubular gearing from an icelarge revolving lifting fans, driven cooled motor situated immediately in front of tin' pilot. In the early experimental machines this motor was of SO-li.p.. hut it is reported that a more powerful motor has recently been fitted. Behind the pilot is a vertical steering rudder like that of an aeroplane; while underneath the large revolving lifting screws or fans are a. series of sjats or •’fins,” three forward and three all, which the pilot has power tc move or adjust., while in thy air, in connection with the stabilising and horizontal movement of his machine.