3D pitch curve setup question........ I just dont get it.

[nguyen23464]

Raptor 30 V1

Ok heres the thing I do not get. Im doing some forward flight now and thinking about a little 3D in the future.

My setthings right now for normal flight is:

linear pitch curve for radio (25, 37, 50, 75, 100) , and -5,0,+9.



heres the question:

How do I get the pitch to go to -9,0,+9 for 3D. I set the pitch on the heli at 50% midstick to 0. The max the servo will let me go is -5,0,+9. I even set the pitch linkage to the second hole like the manual suggested and linkage on the horn to the farthest hole to get maximum travel. Do you have to end point the servo out past 100/100 to reach -9?

If so...... would I have to start flying with -9,0,+9 to get used to it? Isnt there a way to maintain -5,0,+9, and -9,0,+9 both when I switch from normal to Idle 1?

The servo horn is centered (right angle) for pitch. I thought maby the servo was giving out and wasnt giving me full travel. So I tried a diffrent servo, still does the same.


Any suggestions would be much appreciated.

Thanks,

Jamie



P.S. I would like to thank all you guys for all the support and help you guys have given me. I have learned so much over the last month.

[svein]

I'm using a 19mm servo-horn, and the ball-link (in the pitch fork) in the hole closest to the main rotor. This gives me -9 to +10.5 degrees at normal 100% epa, both ends.

I use the following values in my TX:

normal: 18-38-55-75-94
idleup: 0-22-46-70-90 (-10 to +10)
hold: 14-38-55-75-100

Which by coincidence is the same values as those listed in the manual, page 20 (page 22 in the raptor 50 manual).

//Svein

[nguyen23464]

I'm using a 19mm servo-horn, and the ball-link (in the pitch fork) in the hole closest to the main rotor. This gives me -9 to +10.5 degrees at normal 100% epa, both ends.

I use the following values in my TX:

normal: 18-38-55-75-94
idleup: 0-22-46-70-90 (-10 to +10)
hold: 14-38-55-75-100

Which by coincidence is the same values as those listed in the manual, page 20 (page 22 in the raptor 50 manual).

//Svein



Hmmm, so your getting -9, +10.5 on normal mode with normal endpoints? For some reason I get -5, +9 maximum travel using also the hole closest the the main rotor and outer hole on servo horn. I will try out your pitch curve settings tonite. And see if I can get close to -10, +10


thanks a bunch

[svein]

no, in normal mode, I have -4 to +10. In idleups I have -9 to +9, with 46(the midpoint) being 0 degrees.

How long is your servo arm? As I stated, I had to use a 19mm servo arm for this.

//Svein

[nguyen23464]

no, in normal mode, I have -4 to +10. In idleups I have -9 to +9, with 46(the midpoint) being 0 degrees.

How long is your servo arm? As I stated, I had to use a 19mm servo arm for this.

//Svein

i have to check on how long the servo arm is tonite when I get home. Its the standard servo that came with the 3151.

Im getting -5, 0, +9 so normal mode looks right on. Im thinking when i get home tonite. All I have to do is set my idle up pitch curve to (0, 22, 46, 70, 90) and I hope I will get 9, +9.

On normal mode are you getting 0 as mid point? or 4 as midpoint. That might be the problem Im haveing to.. Raptortechnique and the manual says, 4-5 as mid point. If that is the problem than I will go home and center mid point out to 4.

[svein]

Not 100% sure.. I hover at 3/4 stick, and the transition into idleup is smooth (not a big jump), since I loose some pitch, but add some headspeed.

Now, my machine is a 50, but the basics should be about the same.

//Svein

[nguyen23464]

Not 100% sure.. I hover at 3/4 stick, and the transition into idleup is smooth (not a big jump), since I loose some pitch, but add some headspeed.

Now, my machine is a 50, but the basics should be about the same.

//Svein


yeah 3/4 is same here.


I dont wanna follow raptortechs guide. because he hovers at half stick. I also want a smooth transition when I go into idle up. Hopefully leaving my normal mode setting at -5, 0, +9. And setting the correct idle up pitch curve will give me that -10, +10. I hope that works, because if I set normal midpoint up to +4 than I think I will start hovering at midstick not 3/4. I wanna learn the right and smoothiest way into 3d.

If that doesnt work than, I might have to invest into getting a different servo horn, and hope that my servo is strong enough to push it. I hope that isnt the case.

thanks for the help, much aprreciated.

[nguyen23464]

thanks a bunch,


that did the trick. =)