Fly-Sky Configuration
and Helicopter Setup Manual

Dual Rate Settings

Definition: Provides two selectable “Response Rate to Input Rate” settings.

During initial setup, you were told to set the Dual Rate fields to 100% to avoid having more than one variable involved in the control-to-actuator translation. You can leave them all set to 100, or you can reduce the values to smooth out the effect of stick movement. The Fly-Sky radio only uses the DR functionality if the DR function is assigned to a switch.

Most 6 channel radios have a function called “Exponential” (fondly called EXPO in RC Clubs) that will reduce servo responsiveness in the area around the stick center position. This feature provides a (smooth) transition from user input to servo response without effecting the crisp responsiveness desired at the ends of stick travel. Unfortunately, the Fly Sky CT6-A transmitter does not support the EXPO feature. The Dual Rate feature supports similar functionality as the EXPO feature with the exception of Dual Rate values effect the full range of stick travel instead of just around the neutral stick area.

DR is not free. This radio only supports two toggle switches. Both of these switches control software in the radio and do not transmit anything to the receiver. To utilize the DR feature, you must decide which switch functionality you are willing to give up. The Throttle Cut switch is a safety issue, so you are only left with using the Idle-Up switch for DR mode selection.

If you are a beginner pilot. It is a good idea to set the SW-B switch to DR instead of NOR/ID (or to NULL).  Dual rates allow you to set the response of the cyclic and rudder to your control input. Basically this allows you to use a low rate in Normal mode for a softer feel. The model will not be as aggressive with the lower rates. As you progress in your training, you can flip the switch to provide more aggressive response from the right stick (mode 2).

Now that you have spent some time hovering, and have experienced its response to stick input, you may want to fine tune the stick movement sensitivity to your own comfort level.

Ideally, you have a muscle-memory sense of how far you would ever need to push the sticks while landing, and can observe what level the moving bars on T6config move to at that stick position. This should give you some idea of what percentage to reduce response. We’ve found about 75% is still controllable with good responsiveness to landing in winds, but you may find you want the helicopter really precise and consequently give up even more endpoint-control. Be careful… the less the helicopter moves per unit of stick movement, the less it CAN be told to move at full stick. Below about 60% rate, the helicopter may be too sluggish to reliably counter winds or correct other effects, and you could lose control.

You may be wondering why you have four physical servos operated by five radio channels… and then only three fields for Dual Rate. This is because Dual Rate is one of the only control inputs that ignores and operates outside of knowing anything about CCPM mixing, and instead operates on the radio between stick and pre-mixer. This means you’re entering the sensitivities for X-axis (aileron) and Y-axis (elevator) on the right stick, and X-axis(rudder) on the left stick, and we don’t care how the CCPM servos actually accomplish control. Channels 1 and 2 set your cyclic sensitivities, and channel 4 sets the rudder response. None of these fields have to match if you don’t want even responsiveness, but I generally keep at least CH1 & CH2 values the same. You may instead want to be able to raise or tip the node with elevator (CH2) much harder than you drift left and right with aileron. You may wish to slow down the tail from pirouetting fast every time you try to turn a little bit. Note that this setting should not have any effect on the gyro’s ability to prevent unwanted rotation, as it can operate the servo as hard as it pleases without your control input, up to it’s own “limits” setting – you’re suppressing your own maximum control inputs while it’s engaged, but the helicopter remains capable of flying just as aggressively the instant you turn off Dual Rate and allow your radio to give it full-magnitude commands.

The ON and OFF values are directly related to the assigned switch ON and OFF setting.

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