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10-10-2005 10:44 PM  12 years agoPost 1
crewchief_432

rrNovice

Groveland,fl.

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Here's my setup before I give you my problem.
align ccpm carbon frame
full align aluminum head
align tail case and pitch slider
upgraded tail boom and belt
warp 4 BL 4-15-3 motor 14 tooth pinion
TP 2100 11.1v battery
cc phenix 25 speedcontroller
stock blades all the way around
401 gyro and JR sport 6 channel reciver

My first problem I was having was I couldent get gyro into heading hold. I Got that fixed, Now when I spool the heli up it rotates counter clockwise (left) and the pitch slider is maxed out to the right. I am wondering if the stock tail rotor blades are the problem. I checked the belt tension and it seemed a little loose so I tighend it some and that had no effect at all. Thanks for any help. Jeremy

Did I do that ???

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10-10-2005 10:48 PM  12 years agoPost 2
zrdcorp

rrApprentice

Caguas, PR

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Try the direction switch in the Gyro
Try the direction switch in the Gyro. It seems instead of counter acting, it is actually pushing further. In the 401 is a very small dip switch.

Please use the plastic tool to mode the dip switch. Those things are delicate...

Good Luck !!

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10-10-2005 10:55 PM  12 years agoPost 3
crewchief_432

rrNovice

Groveland,fl.

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No it's not the direction I checked that already. It's trying to give it right but there isn't enough pitch in the blades it seemes like. but there is noway to give any more pitch because the slider is maxed out, Thanks though.

Did I do that ???

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10-10-2005 11:44 PM  12 years agoPost 4
Helichomper

rrApprentice

san diego,ca

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When you have the servo set to o you must have about 15 degrees of pitch on the blades or the heli will spin to the left all the time. try it and you will fix your problem

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10-10-2005 11:47 PM  12 years agoPost 5
Helichomper

rrApprentice

san diego,ca

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I forgot to tell you, when the servo is set at o just move the whole servo forward to achieve the 15 degrees on the blade, if it doesn't work that way move the servo back until you get 15 degrees.

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10-10-2005 11:55 PM  12 years agoPost 6
crewchief_432

rrNovice

Groveland,fl.

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The pitch slider is hitting the tail case, Im not sure how much pitch that is but I cant get any more. and it only spins right before liftoff. thanks for the suggestion though.

Did I do that ???

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10-11-2005 12:04 AM  12 years agoPost 7
zrdcorp

rrApprentice

Caguas, PR

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..hmm..

Similar to the main blades, you need sufficient speed in the tail rotor as well.

Tray adjusting yout throttle speed (you may have to reduce pitch in the main blades) ...

maybe you have not sufficient speed yet..

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10-11-2005 12:41 AM  12 years agoPost 8
crewchief_432

rrNovice

Groveland,fl.

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Good answer
That never crossed my mind. lastnight I flew it in rate mode and it held the tail ok. Today I figured out how to get the gyro to work with my transmitter and put it in HH. I also didn't like where the heli was lifting off at so I put a couple more percentage points on the pitch curve and didn't put any more throttle in it. I bet thats the problem. Thanks for the help, I'll let you know tomorrow if it worked. I'm sure it will.

Did I do that ???

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10-11-2005 12:59 AM  12 years agoPost 9
Helichomper

rrApprentice

san diego,ca

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on o degrees the slider can't be hitting the end point. move the slider until it is at the middle of the slider with the power off. then adjust it so there is 15 degrees of pitch so the heli would be turning to the right. if you don't do this the heli will always turn on you. it can't be adjusted any other way.

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10-11-2005 02:05 AM  12 years agoPost 10
crewchief_432

rrNovice

Groveland,fl.

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helichomper, I'm not sure what you mean about adjusting the pitch but even with the slider giving full right as far as it will go it still spins left. is there anywhere i can find pics on what you are talking about. thanks for the help. Jeremy

Did I do that ???

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10-11-2005 02:16 AM  12 years agoPost 11
MikeInMobile

rrElite Veteran

Mobile, Alabama

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Sounds like you used the wrong ball links on the tail ..... the tail uses the shorter ball links !

The kit has two sizes of ball links in it ..... make sure that you used the shorter ball links on the tail. If you didn't, you can grind down the longer ones to fix the problem!

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10-11-2005 02:23 AM  12 years agoPost 12
crewchief_432

rrNovice

Groveland,fl.

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I have the small ones on there. Good thought though.

Did I do that ???

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10-11-2005 02:41 AM  12 years agoPost 13
rotarypower3

rrApprentice

Melbourne, AUSTRALIA

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Make sure the tail blade grips are on the right way. The screws go in from the outside and the ball links should lead the grip.

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10-11-2005 02:48 AM  12 years agoPost 14
crewchief_432

rrNovice

Groveland,fl.

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thats all good to. I dont get it? thanks

Did I do that ???

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10-11-2005 02:53 AM  12 years agoPost 15
rotarypower3

rrApprentice

Melbourne, AUSTRALIA

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I fixed a mates trex on the weekend that would hover ok in rate mode but was terrible in HH. He had the tail grips around the wrong way. The ball links should LEAD the tail grip/blade. Have a look at yours, I'm sure you'll work it out.

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10-11-2005 03:32 AM  12 years agoPost 16
flybarless

rrKey Veteran

Torrington, CT

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Try setting the speed controller to "very soft start"
Mine did the same thing with the new motor, all that torque at start up just spun it until things got up to speed and settled down.

Just remember -- if the world didn't suck, we would fall off.

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10-11-2005 03:49 AM  12 years agoPost 17
Helichomper

rrApprentice

san diego,ca

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crewchief,, turn the blades until they are next to each other then adjust the servo by moving it forward until you have about 15 degrees of pitch. you will see this if you have the blades turned so they look like they are standing upright to each other. not like they are when they are spinning. this way you can see the pitch angle. when you start make sure they don't have any pitch. they will be right next to each other by moving the servo. when you move it forward they will be apart from each other. sorry i don't have a picture to show you. hope you understand what i have said. this will solve your problem for sure. most people that set the tail up have the same problem.

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10-11-2005 03:51 AM  12 years agoPost 18
Helichomper

rrApprentice

san diego,ca

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one more thing when you look at the blades they will look like your fingers when you make a v shape like a victory signal. they won't be straigt out from each other

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10-11-2005 09:19 PM  12 years agoPost 19
crewchief_432

rrNovice

Groveland,fl.

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I moved the servo so it made 15% of pitch in the blades and still have the same problem. The heli still spins ?

Did I do that ???

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10-11-2005 09:37 PM  12 years agoPost 20
MikeInMobile

rrElite Veteran

Mobile, Alabama

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With both blades facing the same direction, adjust the pitch so that the distance between the trailing edges of the blades is approx. 9mm ..... this will be VERY close to the required neutral for a stable hover without spinning. The tail pitch slider SHOULD be in the middle of it's travel when this distance is acheived. If not, adjust the length of the ball links (grind the ends of them with some 120 grit sandpaper on a sanding block) until the tail pitch slider is in the middle of it's travel. Now, your tail is setup mechanically !

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