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e-Ikarus Piccolo-Eco 8/16 > no tail response
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

New flyer and new member to RR my eco8 spins counterclock wise at
below half throttle
after installing CF boom rudder servo standard mounted on boom
Now if I try to control rudder I have to fight it because of tail problem I can not fly.

My gear Jr xp6102 6ch gyro 401,Hitec micro servos BB
E-Flite 32 brushless with castel creation 80amp esc.
Battery 9.6v ni-cd,3cell 11.1v 2100mah lipo e-flite and
thunder power. Please help THANKS.
08-26-2007 Over year old.
 
 
DogWood
Heliman
Location: San Jose, CA. USA

you really shouldn't be trying to fly with the throttle, the whole point of a CP heli is a constant head speed.
08-28-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

DogWood thanks for the reply
I must apologize about how I wrote my problem
tail won't respond on ground so I can't take
of the ground. I bought another tail servo
I thing CF boom shorted servo.

RR member I am a bad writer and speller if I am
not making sense pleas let me know.

Servo short was suggested by heli pilot has be
flying for a while.
08-29-2007 Over year old.
 
 
DogWood
Heliman
Location: San Jose, CA. USA

So sitting on the ground, trying to throttle up the heli starts spinning counter clock-wise?

I would check your gyro, make sure its moving the right way, also make sure the servo is moving the correct direction.

Simple thing to do is reverse your gyro and see what happens, carefully, as it might really start spinning.
08-29-2007 Over year old.
 
 
HeliDuce
Senior Heliman
Location: Nashville, TN

Easier way to test correct gyro response

With the Eco 8 you can easily test your gyro for proper rotation by powering up the heli and waiting for the red led to light on the 401. Now, pick it up and holding it in your hands with the nose facing left and tail facing right pull the chopper towards your body and watch the tail pitch slider. The slider should move away when pulling the heli in towards your body. The opposite should happen if you push it away, the tail pitch slider should come towards you. If it's backwards then reverse gyro switch. Now, once that's done check for correct rudder input. Pushing the rudder stick to the right while standing behind your Eco 8 the pitch slider should move to the left and vs. versa for left stick input.
If you do these tests and all works correctly but it still won't hold the tail then your tail blade grips are reversed. Just switch them around so that they are on leading edge side of the tail blades.
Now, if it still won't hold the tail you either don't have enough hold setup in your radio or possibly the gyro is bad. I strongly doubt that the gyro could be bad since they are extremely reliable.

Good Luck!


Gary Morris

Trex 600,Gazaur Mars 480, Trex SE V2, ESky 550 ESmart, Eco 8 Royal, Dragnous II, Falcon 3D, SE,
08-29-2007 Over year old.
 
 
DogWood
Heliman
Location: San Jose, CA. USA

excellent post HeliDuce,

one more thing to add to HeliDuce's post, make sure the belt isn't reversed, on the tail the lower blade should be moving towards the front and the upper blade away from the front of the heli.
08-29-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

HeliDuce and DogWood Thank You for the tip I followed both tips
tail servo is good and going in right direction. Still near half
throttle spins to the left. I know I screwed up the mixing setting
I should have wrote it in book. GY401 when on light is solid this
is my current setting MX1 PIT TO GER OFFSET -20, -80% +80% left switch forward or down position +80%. Minus 80 is nonheadinghold
positive 80 is HH. I do appreciate your help
08-30-2007 Over year old.
 
 
DogWood
Heliman
Location: San Jose, CA. USA

with the servo centered, is the arm on the tail close to a 90 degree angle to the boom?
08-30-2007 Over year old.
 
 
HeliDuce
Senior Heliman
Location: Nashville, TN

Other possible problem

There also is a possibility that you have revo mixing setup. Be sure that your radio has this feature turned off since revo mixing and HH gyros don't get along together. Revo mix is used with a pizo or non heading hold gyro so that when you add throttle or pitch it mixes in more rudder so you don't get the tail swinging wildly. The reverse happens with a heading hold gyro and absolutely no revo mixing should be programmed in. Also be sure there is absolutely no rudder trim in your radio since this can cause problems as well. The only way to trim your tail is mechanically moving either the servo or the pushrod. Hope this helps you more.

Gary Morris

Trex 600,Gazaur Mars 480, Trex SE V2, ESky 550 ESmart, Eco 8 Royal, Dragnous II, Falcon 3D, SE,
08-30-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

HeliDuce sorry for the slow response but i did what you and
DogWood said. I never set Revo mix it few with out revo mix
and servo arm is about center or 90 degree. I should also tell
you I have replaced main shaft and spindle main blades is balanced
with blades on frame and front of skid shakes (I think pitch setting
on controller is not setup) but would that cause my problem.









ECO8 HX400 Jr Venture50 QuickofJapan
08-31-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

HeliDuce and DogWood damaged tail serv gear stripped
and my homemade linkage was cause of problem. I going
to build another one which can be adjustable with out
moveing servo. Getting metal gear servo no digital this
heli is my trainer.

HAPPY LABOR DAY TO ALL RR MEMBERS
09-03-2007 Over year old.
 
 
DogWood
Heliman
Location: San Jose, CA. USA

Glad to hear you got it figured out
09-03-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

Hello RR members I am back with same problem I replaced
tail servo with fut micro metel gear servo. Now the new servo
has full right rudder but on left. Travel setting is 100% left and right but when I move gyro limit from 60 to 120 I get left rudder. With out main blades stays still when giving left rudder it spins that direction. Try the oppsite nothing on binding on linkage or tail arm. Tail servo is standard not digital servo. Sorry for the long story If any one have suggestion I would appricate it. Just to let you know I did not crash it to cause the problem just replaced few stock parts. CF boom alu gears to spin the tail blade
10-15-2007 Over year old.
 
 
mjdee14
Senior Heliman
Location: Nashville , TN

tail spin

Have you properly set up your 401 and "mechanically" set up the servo so the tail won't spin on spool up?

if all the directions of servo travel and gyro travel are correct, you should be able to slide the whole servo forward or backward so it won't spin widly on spool up, it may spin a little.

You should also be setting the 401 in non heading hold for the mechanical adjustment, then use rudder trim for very small adjustments to where you can lift and hover he heli without the tail swinging, then power down...and power up in HH mode.

if your linkage is smooth and you adjust it properly, it should work.

Can you post some Pictures or video of the tail and servo movement...

maybe we could tell more from that...

http://www.futabarc.com/team/team-tip-002.html

http://www.raptortechnique.com/tail...m#taildirection

Try the two sites above...lots of good gyro information.


Mike

Mike... Blade CP, HBCP2, Revo w/belt drive, Zoom 400, Eco 8, Hurricane 550, DX7 2.4
10-16-2007 Over year old.
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

Mjdee14 thanks for the reply I tryed what you said same thing
trimed out rudder. Heli don't spin counterclock wise but when
I give rudder left or right it too fast and try to correct it
goes fast the oppsite. I also found linkage for the tail is to
flexable. The linkage connected from servo to tail I will have
make another one.

Mjdee14 I also have MX400 mCCPM with 401 it did the same thing
after I wacked it on my knee while flying fixed it by adjusting
rod end on linkage.

My Jr xp6102 setup for mixing is pit to ger +87 -87 it was
-80 to -80. I am thinking if it still doing it with
stiffer linkrod switch gyros and go from there.
10-17-2007 02:17 AM
 
 
mjdee14
Senior Heliman
Location: Nashville , TN

Munbi..

It sounds like you might be seroing in on the problem. Flexible or tight linkage will cause all sorts of problems.....I even had a "loose" ball end fitting on the tail and it drove me crazy. The littlest bit of play or tightnes is accented much more on the tail as the gyro is fighting to try and correct.

When properly set up you should be able to get "light" on the skids and be able to control the the tail in both directions.

Fix the linkage and try the gyro in non HH mode that will give you instant control of the servo with no lag, but the linkage HAS to be smooth and no looseness.

Good Luck....this is also one of the fun parts of the hobby...."troubleshooting problems"

Mike... Blade CP, HBCP2, Revo w/belt drive, Zoom 400, Eco 8, Hurricane 550, DX7 2.4
10-18-2007 03:56 AM
 
 
munbi
New Heliman
Location: new rochelle,ny,westches ter

Hi RR members I have been trying to fix my counterclockwise
problem. Still on luck I finely swapped out my gyro with a
good never used 401. Still same response tail spins in counterclockwise direction. When I try to correct it slow
response and spins the oppesite direction. I won't give up
I want to fly.

I have a question Programmable Mix how does it work and do
you have to change setting when moving tail servo to the
the tail boom mount. My setting is PITCH TO GEAR 82% -80%
offset -85. I would like to how JRXP6102 use this setting
I don't know. I have been trying to show pic digtial camera
not a good one. Sorry Factory location for tail servo was on
frame it hovered when servo was there.
11-11-2007 08:39 PM
 
 
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e-Ikarus Piccolo-Eco 8/16 > no tail response
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