"When the rotor reaches the required rotational speed, the throttle is fully opened, the clutch automatic cally slipping to permit this, and the pilot grips the pitch control lever. thus releasing the trip of the clutch. He then eases the lift lever backwards, and feels' the machine into the air, The period over which the control is operated varies with wind conditions, being shorter when th wind enables flying speed to be reached more rapidly, and the machine take-off even in still air with no forward run. Climb continues steadily jand directly from take-off, the normal angle being about one in three.
"Take-off procedure may also be varied to suit the ground surface. Should this be very rough a rapid initial movement of the lift lever will raise the machine clear of the excresconces, while a gradual conversion of the remaining energy will hold it in th the air till flying speed is reached As the machine nears the ground, the pitch control may be moved backwards over the positive range, and the increase in lift reduces the sink-jing speed sufficiently to permit a gentle landing without run."
Much has yet to be done before these new gyroplanes may be launched jin big production. Meanwhile, there is interest in developments wi promise one practical solution many of the problems of heavier-than-air fight.
Text read from the printed page and cleaned; old type leaves the occasional error.