Figure 17-1. A common method of transferring cyclic control inputs to the rotor head is through the use of push-pull tubes, located outboard of the rotor mast pictured on the right. 17-1 Figure 17-2. The direct overhead stick attachment has been used for control of the rotor disc on some gyroplanes. the control is designed, control movement may or may not be proportional to engine power. With many gyroplane throttles, 50 percent of the control travel may equate to 80 or 90 percent of available power. This varying degree of sensitivity makes it necessary The throttle is conventional to most powerplants, and provides the means for you to increase or decrease engine power and thus, thrust. Depending on how Due to rudimentary flight control systems, early gyroplanes suffered from limited maneuverability. As technology improved, greater control of the rotor system and more effective control surfaces were developed. The modern gyroplane, while continuing to maintain an element of simplicity, now enjoys a high degree of maneuver- ability as a result of these improvements. The cyclic control provides the means whereby you are able to tilt the rotor system to provide the desired results. Tilting the rotor system provides all control for climbing, descending, and banking the gyroplane. The most common method to transfer stick movement to the rotor head is through push-pull tubes or flex cables. [Figure 17-1] Some gyroplanes use a direct overhead stick attachment rather than a cyclic, where a rigid con- trol is attached to the rotor hub and descends over and in front of the pilot. [Figure 17-2] Because of the nature of the direct attachment, control inputs with this system are reversed from those used with a cyclic. Pushing forward on the control causes the rotor disc to tilt back and the gyroplane to climb, pulling back on the control initiates a descent. Bank commands are reversed in the same way. THROTTLE CYCLIC CONTROL