Helicopters: The dream machines of flight Able to perform stunts beyond real helicopters.

Using the same flight principles and structures as full-sized helicopters, the complex mechanisms make R/C helicopters perhaps the most sophisticated of R/C models. The quality of precision components makes a difference in flying performance and therefore the manufacturers skills are put to the test in this category. The Kyosho Caliber is designed to meet the F3C rules governing competition at the highest level and boasted the largest number of entries at the last World Championships. Proven features and knowledge have been applied in the design of the entire helicopter range. Surprisingly quiet in flight and with excellent stability, the helicopter is able to perform amazing gravity-defying 3D acrobatics.

The control systems of full-sized helicopters are regarded as being relatively difficult to learn compared to airplanes. The same can be said of R/C model helicopters. However the recent evolution of the gyro system has reduced this difference dramatically. As per the illustration, the gyro mechanism works to automatically counter the effects of changes in torque from the main rotor. In addition to the throttle, there are four other control inputs for a helicopter, but it is nearly impossible to manually control the effects of changes in pitch and throttle. The added functions on helicopter transmitters help to cover these effects. It is absolutely necessary to learn the technologies used for these settings.

Counter Torque
When the main rotor is rotating, a counter force is always present to spin the fuselage of the heli in the opposite direction to the rotor. The level of this force increases and decreases under the changing influences of main rotor speed and time. This makes it nearly impossible to adjust to the changes in counter torque that are moving the position of the fuselage through visual adjustments only.
Gyro System
For this reason, we rely on a unit using gyro sensors. Any swinging movement from counter torque (not any control input turning), by the nose of the fuselage, is detected and a signal sent to the tail pitch servo to change the pitch and compensate for the fuselage’s swing. Due to the heading lock functionality in the latest gyro’s, the original direction of the fuselage is memorised and maintained, making fo perfect tail rotor control and eliminating fuselage floating.