reaaz

A friend was complaining to me that his new rex doesn't roll as fast as his blade cp, causing him to crash. It only just occured to me that maybe his cyclic rates were low & need to go up..
I just finished setting up my rex & I wish to know whats the highest cyclics used for advanced 3D flying. I have made my cylclics at + -7 deg...

This is my first foray into small electrics, I'm used to 90 sized birds.

exeter_acres

My Feedback: (2)

I had mine set up at +-11 degrees....

but what servos was he using and were the rates set up correctly? end point? etc... there are several things

also,, a low head speed will SERIOUSLY effect the handling...
if it is too low, it will fly like a pig

reaaz

I hope your 11 deg is in reference to your collective pitch.... cause I doubt that you were refering to the CYCLIC pitch... or were you?????

I'm interested in what cyclic pitch modellers run their trex450 at!

exeter_acres

My Feedback: (2)

not sure what you mean then.... I have flown for a few years and not sure what you are measuring?

reaaz

Yes alot of RCers don't know about cyclic pitch as its not really reguarded as important for the newbies, as compared to collective pitch... & the info just gets buried in all the techno gadgets once you learn the basics. However, if you want a precision handling & top performing bird... you need to know how to check & adjust this!
It refers to when you input either aileron or elevator control... the angle the blade makes fro center stick! This angle dictates how fast your chopper will roll, loop & flip. It has NOTHING to do with collective pitch!

You can check this CYCLIC pitch by turning on your radio, moving your collective stick to center... & using your pitch gauge on the blades just as when your checking collective angles... However, you don't move the collective from zero pitch, rather you must move either the elevator or aileron stick & keep the flybar as level as you can while checking it!

Note their are two independant cyclic rates you must adjust/check... elevator & aileron! Sometimes, you can easily find that the cyclic pitch for the aileron is much lower for than the elevator... the angle ranges for the two must be set to the same!

Oh... adjust the endpoints or atv on your radio to increase or decrease this angle! On.. ccpm birds.. don't mess with endpoint or atv... go into the swash & adjust the aileron & elevator percentage...

Is this info news to you???

exeter_acres

My Feedback: (2)

nope.... just wasn't familiar with the term....

and true, the swash AFR settings make a big difference....

Sorry.. sold my trex a while back and my head wasn't in to it....
honestly never measured that... I did it by feel... I know that is not as precise, but it worked for me......

juneebear

You may find your answer here on this link http://www.helifreak.com/showthread.php?t=41692
Watch the videos under CCPM part 1 and part 2. I hope this helps.

rlsloan

cyclic pitch and roll should be 6 degrees