CopterX CX-CT6A User Manual

Beginners Guide to Configuring the T6 Program & Basic Helicopter SetupRevision 1.3ContributorsJerry Shaw - [email protected] – wol

setting. You will not have to return to this setting. This control will allow you to increase or decrease an equal amount of signal to all three cycli

If you have removed the head, you will want it put back on temporarily until we have discovered the exact center of swashplate travel (part of the fir

wire from the ESC.CH4 – Gyro / Rudder control. Typically the Gyro plugs into CH4, and the rudder servo plugs into the Gyro. Most Gyros have a sense/ga

Servo CenteringIn this next step, we are going to center the servos and verify they are moving in the correct direction. Before making the adjustments

travel.Fig 8Fig 8bWhy must it be 90 degrees? This is important to understand. The servo horn travels on an arc from the servo hub gear. The distance t

right in flight as you change the elevation (throttle input).This inadvertent control is annoying at best, and nearly uncontrollable at worst, so ther

about 5 degrees which comes out of the 30 degrees available for the down pitch direction. This equates to about 3 degrees of blade pitch that you have

Fig. 8cChecking for Servo DirectionWhen the throttle stick is moved up, all three cyclic servo horns are also supposed to move UP. As you test each se

Perform the same servo horn checking steps and 90 degree adjustments with the remaining cyclic servos. Remember to check for interference and without

Fig 9Leveling the Swash PlateIn the previous steps, the servo horns were all mechanically and electronically setup. The next steps is to level the swa

This manual is intended to assist the beginner RC Helicopter hobbyist configure the radio and helicopter for general flight. We will not cover advance

Fig 10Decouple parts (Fig 10) marked in blue from the swash plate.Lift the head off of the main shaft. This may take some slight force to accomplish.V

Fig 11Inspect the clearance between the tool feet, and the swash plate perches. There should be no gaps. If there are gaps, then you want to adjust th

Blue Locktite to the end of the Jesus bolt after you have pushed it through the main shaft and before attaching the nut. Note: If your Jesus bolt is b

towards the swashplate. Attach the washout arms to the swashplate using Loctite on the screw ends. Use caution not to get any Loctite on the ball, or

Fig 11bNow that the swashplate is level, the lower mixing arms are level, and the flybar cage is level, we can move on to the upper mixing arms. Attac

rod is parallel to the main shaft, or you can place a blade sideways in the grip (thick end) and adjust the link until the blade is level. Another way

of the TWO servos.Elevator requires that two servos move up (or down) in unison, while thethird moves opposite (generally the elevator servo). IF all

head generally to get all mixing arms level, and ZERO degrees pitch in BOTHblades.-----Barracuda mentions the idea of setting your pitch curve to a bi

AFT channel to 50% (for example) the collective signal will make a calculation that will limit that collective input to only 50% travel, but more than

0,50,50,50,100 comes in handy.*Note – The Swash AFR setting has a range of -100% ~ +100%. A Negative setting has the same effect as reversing a servo.

Fine Tuning & Radio Hints...46V

Fig 13Test for zero pitch at multiple locations as you rotate the blade a full 360 degrees. This is to verify your swashplate is properly leveled. If

prefer the #80 dampers. Keep a couple sets in your parts bin. Periodically check the dampers for wear. An easy check is to lift a blade with your hand

Fig 14Warnings: The following procedure requires the motor to be running. This is a dangerous process. Take all precautions so that you do not incur i

Fig 15Warning: Blades are held on by small screws or nuts. They have been known to come off at high RPM. The first time (and actually anytime) you sta

from you to the OFF position. Slowly power up the motor. Bring the motor up to slightly more than mid stick. The blades should start applying pitch an

At this point you should now have the blade tracking set so that you only see one blade as it rotates around with enough throttle speed to lift the he

continues to adjust until it achieves the original position. This means any time you’re not telling the helicopter to rotate, HH mode remembers the l

Select the MIX option, and select MIX 1 from the drop down list.Fig 17Set the source to be the VR B dial, the destination to be Channel 5, with 100% f

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Servo...

On the radio, turn the VR(B) dial to the mid-point and then turn it CW 60 degrees (2 hour markers) to make sure the gyro initializes in HH mode. You c

Fig 18Page 41

Fig 18aPage 42

Hint: if you have a slow servo, then using a longer horn will help in maintaining position. If you have a fast digital servo then using a hole closer

*Hint – To keep yourself oriented between the radio controls and the helicopter, always fly the Nose of the helicopter. NEVER fly the tail. This is a

Setting the tail slider limitsSome Gyros have the ability to limit the amount of rotation of the servo. To use this option, first slowly apply left st

more. If the helicopter begins a high speed spin, it means the gyro needs to be reversed. In that case, power down, set the reverse, and try again.If

The first step in tuning is to get the helicopter to hover free hand for at least two seconds. Place the helicopter into an eye level hover and use th

VR(B) Gyro Gain / Rate ModeThere is nothing wrong with flying in Rate mode. Typical backyard and park flying can be a little smoother in rate mode tha

mode once the motor reaches operating speed. The lockout prevents the ESC from accidentally resetting into slow start-up during flight in case there i

download the Digital Radio package from http://www.sgr.info/usbradioStart the application, and plug your (already installed and configured USB interfa

use these high throttle settings until after you have setup the tail servo and gyro.*Safety Note – Whatever throttle settings you use, Never connect p

Most 6 channel radios have a function called “Exponential” (fondly called EXPO in RC Clubs) that will reduce servo responsiveness in the area around t

Mechanical SafetyBecause the helicopter has many parts moving traveling at extremely high speed, always perform pre-flight checks. Grab the main blade

Never switch off the radio while the helicopter is plugged in. Turn on the Throttle-Cut switch before approaching the helicopter, remove power from th

another. These MHz-band receivers are also extremely prone to receiving interference, so your neighbor’s cordless phone probably can crash your helic

out of nowhere and you were not ready.Battery SafetyLithium-Polymer – (Li Po) is currently the most popular battery used in RC aircraft. The amount of

If you crash the helicopter. Remove the battery and set it aside for 15 minutes. If it does not explode or puff up in that amount of time, you can ret

Aileron This term originated from fixed wing aircraft. Ailerons are hinged control surfaces attached to the trailing edge of the wing of a fixed-wing

• Belt drivenThe Belt Driven tail rotor uses a cogged belt connected between two belt pulleys whereas one pulley is driven from an Auto Rotation gear

are used to counter the centrifugal force of the lower blades, and provide turning capability. The controller of a coaxial helicopter will increase or

If your radio is not communicating to the software, you need to click the Settings button in the System Option section. This will display a serial por

End Point Controls Servo Travel limits. A typical servo can travel -30 degrees and +30 degrees from center for a total of 60 degrees of travel. Settin

Feathering Shaft & DampenersAlso called the Horizontal Shaft. The Blade Grips connect to the feathering shaft. The feathering shaft runs through t

GainThe Gyro uses a voltage gain to increase or reduce the sensitivity of the gyro to lateral movement in Head Holding Mode. Too much gain will result

when moving relative to the fluid. This lift may be steady, or it may oscillate due to vortex shedding. Interaction of the object's flexibility w

Fig 23Mixing Control ArmsThere are four mixing arm controls on a Bell Heller configuration (Fig. 23). The two at the lower section translate swash pl

device (the joy stick). The Radio will calculate the signal strength between each reference point. Pitch GaugeA tool used to measure the blade angle f

adjustment with the rod installed on the helicopter.RTF – Ready To FlyA packaged model claimed to be ready to fly out of the box. This is a myth. Alwa

Swash AfrUsed to adjust swash plate travel up and down and direction.Swash PlateThe intermediate control device whose level is transmitted to the fly

Washout ArmsFig 25The washout assembly (or lower mixer) is a set of linkages in the rotor head that serve to mix out collective pitch inputs from the

washout, as the blades are symmetrical to allow for inverted flight. YawFig 26Yaw axis is a vertical axis through an aircraft, rocket, or similar body

◦ Create a directory on your hard-drive for these setting files. Keep them in one place. If you have multiple aircraft models, then either name the fi

Following are the settings for Don's sail boat.The servo that will be controlled by the right stick for Left and Right directions should be plugg

The next boat setup request comes from “Bud”.Following are the settings to allow Bud to use Switch A and B to either control a servo, or turn on/off s

this manual. Most of them hang out on the RC Discuss forum www.rcdiscuss.com . A special thanks go out to GregoryT for all of his hard work in dil

time it was connected to the radio.1. MODE - Set the Mode to Model 2. This is the configuration used in the the United States. If you are a European p

to OFF, and finally select the MIX 3 setting and set its SWITCH setting to OFF. We will return to this option later in the setup.7. SWASH AFR – As me