Blade pitch ?

[genexis]

How do you people determine the blade pitch without the pitch guage ?

When i configure the pitch for my TX, what should the steps be like ?
I did this:
1) Center servo
2) Throttle down all the way
3) Adjust blade pitch to 0
4) Connect link to servo

But it seems that when my throttle is half way up, the pitch is already max. Is there something else that i must configure in my radio ?

These are my readingsNORM) I'm using 9chp

Point 1 2 3 4 5
Pitch 0 25 60 75 95
Throttle 0 40 85 90 100

[Super-Hornet]

Hi genexis

Welcome to the T-RexX owner club.

Your configuration not really correct if u intend to fly inverted or 3D stunt.

What u need to do is:
1 - Remove motor connection first.
2 - Configure your pitch curve to be like a linear curve first (0, 25, 50, 75, 100... if it is 5 point curve)
3 - Then move throttle/pitch stick to 50% (Center)
4 - Then adjust your pitch servo so u have like 50% throw.
5 - Then move your Throttle/Pitch curve to 0% and 100% to see whether u have min and max throw for the pitch. If one side higher (Reach max first) than the other, u adjust your End-Point. Then go back to 50% again to make sure the servo pitch is at 50% again. If not adjust linkage again.
6 - At 50% throttle/pitch stick, adjust your blades (Can refer to user manual) linkage to have 0 pitch (Without pitch guage, use your eye and see that it is parallel to the flybar and the flybar is at 0 degree.

That is all. Remember to adjust your End-Point or DualRate/Exponential for your cyclics also. T-RexX cyclic throw can be very huge.

Oh... my personal view, mechanical CCPM need not to be must have level/0 angle of servo arm when at 50% throttle/pitch stick. I find that for eCCPM, it is better to be in level servo.

Super-Hornet

[Super-Hornet]

Oh... Try to have linear curve for pitch. For Throttle curve, it will depend whether u are in governor or fixed throttle mode.

I can't tell u exactly how your throttle curve looks like. I believe everyone will have its own value. Just make sure when u punch up your throttle/pitch stick, you should not hear your motor speed spin faster or slow while your heli taking off and goes up. If u do, u will not have linear stick to heli movement ratio.




Edit: Oh.. once u finish the above adjustment, U might want to adjust your pitch curve to be in like "48 49 50 75 100". With this configuration, u will have 0 to 50% throttle/pitch stick at is practically not use (Because u are in normal mode first... I assume u still learning to hover)

For some who intend to just flying around without even wanted to do inverting, they may adjust your pitch to be like "48 50 66 82 98". With that, u have more useful stick travel movement. This configuration is not very favor by many.

Super-Hornet

[genexis]

Thanks for the info. I"ll give it a try