T-rex 600 very BASIC help!
 

HiAll,

Im a newbie into the RC world. During the last months Ive been mastring a couple of coaxial ones and then a micro single rotor heli. However, I want to fly outside and do some more open field flying. After many many readings, I ve come up with the decision of buying the T-rex 600ESP super combo. My plan is to follow the so called "grow with it" path. I know this is an expensive heli, but its size and weight should provide perfect stability and visibilityfor a training process as Ive seen mentioned many times on the web.

The first thing I did was to get Phoenix simulator, and the Aurora 9 Tx. My plan is to put a lot of effort on the sim till I get confident enough to go and fly the 600 ESP. While doing that, Ive noticed (as expected) that the T-rex 600 channels are different than those of a 4 channel heli (such as the ones Ive flown already). Ive read this one requires 6 channels minimum.

One of the main differences Ive noticed in the sim is that the throttlechannel (channel 3) onlyrotates the rotor, but the lifting is provided by a separate channel (channel 1), whereas in my ex 4-channel helis the throttle channel controls both rotor and lifting. Is this right? or is there a problem with the sim?

and another question: what would the additional channels (5 and 6) be doing and how?

I know thisare very basic questions but Im very puzzled by it and dont know anyone nearby to ask

Thanks a lot

Rod

RE: T-rex 600 very BASIC help!
 

Rod ! the sim should be like your radio.After all the sim is a learning tool ,so you want to go from the sim to your 600 and have the same imputs.

RE: T-rex 600 very BASIC help!
 

You have two sticks.

The right stick is your cyclic controls. Similar to an airplane they work like aileron and elevator.

On your left stick (assuming Mode2 which is pretty much everyone) you have your collective pitch and throttle combined on the throttle axis, and your rudder.

The 5th channel is used for a gyro gain the 6th is your collective pitch (again, mixed with throttle on the throttle stick)

RE: T-rex 600 very BASIC help!
 

Im a little confused. So the right stick "horizontal movement" on my Tx setup seems to be doing the collective pitch function, according to what you just mentioned, since every time I hit it, it causes the Heli to lift or lower. Should I then combine the c. pitch into the throttle (left stick) and reassign the the right stick horizontal movement for aileron? and another question, why the need for a 6th channel controlling the c. pitch since this is already combined in the throttle channel? Im sorry about my ignorance but Im a newbie on this!

Thanks a lot for your help!

Rod

RE: T-rex 600 very BASIC help!
 

You have 3 servos the operate the swash. The work through swash mixing in the radio. For your Trex 600 you will have a 120 deg swash. That means ch2 will be aileron , ch6 will be pitch, and ch3 will be elevator.
When you push the left stick up. The radio mix will move all three servos up (giving you positive pitch).At the same time it will add throttle increasing headspeed. When you move the right stick forward it will raise the elevator servo tilting the back of the swash up (this causes the heli to move forward). When you move the right stick to the right the aileron servo will move down and the Pitch servo will move up, titling the swash right. This will roll the heli to the right.

RE: T-rex 600 very BASIC help!
 

Your Collective Pitch and Throttle need to be separate channels because they don't always act together in the same fashion. For aerobatic flying (or I guess just added stability) you have a flight mode switch. Generally you'll set up an Idle-Up mode on this switch. When you flip it the motor RPM will rise significantly, depending on the setup it may just stay at a constant speed near the max for the motor, and your pitch curve will change, putting 0 in the middle and giving you an even range of positive and negative pitch to allow for inverted flying and more maneuverability in general.

RE: T-rex 600 very BASIC help!
 

If you go with a 600, make sure you have someone teach you the mechanics of it.  Having a blade coming off that 600 can kill someone.  I was shocked on how much attention to detail a  rc heli requires on the mechanical side.

RE: T-rex 600 very BASIC help!
 

thanks a lot for the help.

Im now much more clear about this. However I still can't make my Aurora 9 work properly on the phoenix sim for the T-rex 600... the right stick (horizontal movement) is still associated to the collective pitch... I'll be working on it to try to fix it

RE: T-rex 600 very BASIC help!
 

issue solved ;)