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Zoom › Setting up pitch curve
12-07-2004 04:43 PM  13 years agoPost 1
Pullin' Pitch

rrNovice

Florida

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Okay, I' feeling stupid right now. I am not new to setting up helis. Nitros anyway. I have everything setup as it should be. At least I think I do. Pitch servo is plugged into ch 6. Throttle is in ch 3. I am trying to set up my pitch curve without turning up the head. So I disconnect one of the motor wires. I plug in the battery and get no tone. I can move all servos except the collective. I try a different wire. Same results. I have tried every combination of wire removal, to include removing all from the motor. Plug it all back up, I get the tone and everything works to include the head spinning up. So, I decide to just "zero" out my throttle curve. Same results. HELP!!! What am I doing wrong??

Eflite 400
CC35
Hitec Electron 6 rec.
GY240
3cell 2100mAh li-po

Thanks for any and all help!!!

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12-07-2004 05:06 PM  13 years agoPost 2
copperclad

rrElite Veteran

NY

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hi
cc p-35 uses the motor to make the tone , as far as the collective not moveing what kind of tx are you useing?

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12-07-2004 05:38 PM  13 years agoPost 3
Pullin' Pitch

rrNovice

Florida

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Hello copperclad,

I am using a Futaba 9C.

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12-07-2004 06:08 PM  13 years agoPost 4
twisted rotor

rrNovice

Columbus, OH

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I had the same problem.

Check your swash plate program. You want it set to SWH1.

Todd

My inner voice is an idiot!

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12-07-2004 06:40 PM  13 years agoPost 5
Dennis (RIP)

rrApprentice

Oregon

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Motor must be connected to the ESC in order for the ESC to arm properly and sense the motor.

Maybe you can leave the motor connected, but back off your gear mesh motor to main gear while adjusting pitch.

Its always best to leave your pitch curve linear as shown below:

0 - 25 - 50 - 75 - 100

Adjust yout ATV's for travel limits on collective for max top and bottom pitch, with 0 degrees at half stick.

You can start out with a throttle curve like this:

0 - 40 - 80 - 90 - 100

Then you adjust throttle curve for a head speed of about 2400 to 2500 at hover.

........Dennis

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12-07-2004 06:57 PM  13 years agoPost 6
cracken

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New Jersey

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Dennis,

I have heard that you should only use -1 degree for max negative pitch (not for 3d, and LOW wind) in order to avoid jamming your heli into the ground when landing, is this true?

I am just now about to enter the realm of CP, and I am coming from the FP world where you just basically chop the throttle at a safe hieght to bring her in.....

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12-07-2004 06:58 PM  13 years agoPost 7
Pullin' Pitch

rrNovice

Florida

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Thanks for the help guys. My swash program is already set to SWH1. I'm now guessing that you are supposed to setup your pitch curve before setting up your motor settings in the esc. I will have to move the gear off for now. Thanks for the info for the curves Dennis. Let me go give it a try.

Chip

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12-07-2004 07:37 PM  13 years agoPost 8
copperclad

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NY

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hi cracken
i learned on an fp too , set your negative to -1 to -3 and you'll be fine ,when i started with the shogun i had mine set to -7 and chopped the throttle and had a boom strike , , cost more to fix a shogun then a rappy

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12-07-2004 07:45 PM  13 years agoPost 9
copperclad

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NY

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hi chip
the esc settings wont effect pitch , im thinking its something to do with your tx setup or the servo , try the pitch servo in another channel to be sure it works and could it be that the tx or the rx are setup for some channel other then 6 , and is your throttle hold on? , my jr locks the pitch and the throttle, i have a jr 8103 and it has a graphics screen that lets you see how all the channels are supose to be moveing , does the futaba have that , so you can see that pitch is on channel 6 ? and moveing , just tossing in ideas

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12-07-2004 07:53 PM  13 years agoPost 10
cracken

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New Jersey

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Thanks Copperclad, thats what I am trying to avoid!!!

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12-07-2004 07:56 PM  13 years agoPost 11
Pullin' Pitch

rrNovice

Florida

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Mine does have a similar graph. I will check it. I have the airplane version of the 9c so it is a little different switch wise but has all of the helicopter programming. I am thinking something might be on that is normally off.

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12-07-2004 07:57 PM  13 years agoPost 12
cracken

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New Jersey

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Quick question (I apologize to original poster for butting in)

So basically with the transmitter stick all the way down, my collective pitch should be set at -1 to -3, at transmitter stick center collective pitch should be set at 0, and transmitter stick all the way up it should be set at 7, correct logic?

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12-07-2004 08:11 PM  13 years agoPost 13
copperclad

rrElite Veteran

NY

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hi
with it all the way down you have -1 to -3 and with it all the way up +7 but i dont worry if 0 is in the middle ( i don't think it will be ) the net result is as you throttle up , the pitch climbs too , and you should hit hover at about +5 , remember as hard as you try not to chop the throttle , it's a habit and will happen from time to time , but after a while on collective pitch you'll learn not to , i have a cc p-25 and a brushless motor and the esc has a red light that comes on at full throttle , on my setup thats about 85 percent so i set the top on my throttle curve to 85 , think of throttle curves as starting points to be adjusted for your setup , other than that i think when i started i had both pitch and throttle just straight lines from 0 to 100 , but once you get it flying dont be afraid to try different settings

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12-08-2004 12:22 PM  13 years agoPost 14
Pullin' Pitch

rrNovice

Florida

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Problem Solved
It turns out my brand new Hitec HS-56 was kaput from the start. At first it seemed to work okay, but it glitched while no of the others did. Then it did nothing. Now it just glitches and buzzes like crazy. Put in a new servo and presto, smooth as silk. Thanks again for everyones input.


Chip

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12-08-2004 02:43 PM  13 years agoPost 15
copperclad

rrElite Veteran

NY

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hi
good work , glad to hear you got it

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12-08-2004 02:55 PM  13 years agoPost 16
Plummit

rrNovice

So Cal

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>>
It turns out my brand new Hitec HS-56 was kaput from the start.
<<

Didn't you read the instructions???? "HS" stands for "Highly Suspect"!

regards

-Marc

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12-08-2004 03:51 PM  13 years agoPost 17
Pullin' Pitch

rrNovice

Florida

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Well from now on I WILL suspect! I have never had a problem with a Hitec component until now.

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12-08-2004 10:27 PM  13 years agoPost 18
vaportrail OLD

rrApprentice

Anchorage, Alaska

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One thing I do when setting up an electric is use a seperate battery pack instead of the esc. I unplug channel 3 and plug the battery there so there is no doubt.

chuck


The real point of terrorism is not the act itself, but our reaction to the act.

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12-09-2004 02:20 AM  13 years agoPost 19
Pullin' Pitch

rrNovice

Florida

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I actually thought of using a seperate battery. Should have done it. Anyhow, it is flying nicely now!

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12-09-2004 02:46 PM  13 years agoPost 20
Plummit

rrNovice

So Cal

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I just left the motor unplugged on my Shogun while I was dialing in the setup.

Still, I ran into a similar situation using the Berg 6. It seems that Berg programs the 6th channel to be number 7, so the collective servo just won't work unless you reprogram the RX to make it #6! Absolutely drove me nuts until I read the instructions.... Doh! ;~)

regards

-Marc

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