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Century Radikal E640 - Swift 16 NX
› I feel like shooting myself in the face!!!
11-29-2005 06:00 AM  12 years agoPost 1
Dbl Heelix

rrNovice

Brooklyn, New York

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Hey guys,

Long time Lurker, haven't posted in ages. I have search to no end to get my Hummingbird cp to fly with no luck. Quick specs:

Hummingbird cp
Himax 4100
MS carbon wings
3s Lipo 11.4v 2000mah
CC phoenix 10
Trec tail esc with dd motor
GY-401
Futaba 6xhs transmitter

As you can see, I believe I have a decent seperates setup. I have everything hooked up and ready to go. servos respond, main blade spins clockwise the whole bit. the problem is the tail. I have read EVERYTHING possible on the 401 gyro. I have it to the point where when I plug my battery in both esc's start and the gyro even goes to solid red. My understand is to then give left rudder to arm the tail motor. My tail motor never begins to spin. When I spool of my cp begin to spin counter because the tail motor never engages to counteract it.

I have trying since thanksgiving just to get the tail to spin. I have read maybe a couple hundred posts on the Trec, 401, CC phoenix 10, and the 6xhs(not that many on this radio by the way). Please, Please, Please, Please help...my fiance is ready to throw the little guy in the garbage!!!

PS. When I plug the trec in the computer an move the control it runs just fine so I know the esc can see the motor and operate it.

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11-29-2005 06:20 AM  12 years agoPost 2
love2fly

rrApprentice

McMinnville Oregon USA

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you could try just plugging a servo into your RX ch4 to make Sher your getting a signal to it if so hook your gyro back up and the servo in to it to see if your gyro is sending out a signal.

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11-29-2005 06:51 AM  12 years agoPost 3
Dbl Heelix

rrNovice

Brooklyn, New York

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Well, I tried both your suggestions(thanks, and I'm still stumped) I connected a servo directly to ch4 on my rx and then adjusted the atv on my tx for channel 4 just to see if it would move.....it did, just fine. I then conected my gyro to channel 4 and then connected the same servo to my gyro....I adjusted the atv on channel 4 and same result, it moved. I should say that it did not move until the atv was under 50% on channel 4. I read somewhere that this needs to be between 0-50. I had it set to 30 in the tx. I changed it to 50, rehooked up everything and tried to spool up...still no tail. My gyro is connected to the trec so I know it is sending it signals now...but the darn rear motor just won't move!!!.....any thoughts?? anyone?????? HELP???!!!

PS thanks for the advice and suggestions Love

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11-29-2005 08:42 AM  12 years agoPost 4
Rob_T

rrElite Veteran

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Try right instead of left! It may just be you need to reverse the rudder channel!

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11-29-2005 08:47 AM  12 years agoPost 5
Dbl Heelix

rrNovice

Brooklyn, New York

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Well, I solved part of the problem. Apparently when you hook up your trec to the pc there is a check box in the setup software to control the esc(realy the tail motor) with the computer. You need to uncheck this box and save it to the eprom memory in the trec. Once I did this, when I plugged everything up, and moved my rudder to the left...the tail motor armed..YEAH BABY!!!! Now I need to work on the settings. Quick question, should the tail motor increase in speed as I throttle up or should the tail motor rpm be constant and I guess have the gyro make the neccesarry corrections? Also my main rotor spins clockwise but my heli is spinning counter??? When I spooled up the tail didn't spin any faster and I still have a counter clockwise spin as I increase throttle...any thoughts?

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11-29-2005 08:47 AM  12 years agoPost 6
Rob_T

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And also set the ATV on the rudder channel to 100% while you're testing. You can adjust it later once you've seen everything working.

And as the 401 has remote gain do you have the 401 hooked up correctly with the rudder and gain inputs going to the proper channels (I fly JR and Airtronics so I cant help with the channel numbers.. sorry!)

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11-29-2005 08:56 AM  12 years agoPost 7
Rob_T

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Depends on if you're using HH mode or not... In HH mode on the gyro there is no automatic increase in tail motor speed as you throttle up while the heli is on the ground, its only as the heli starts to yaw left that the gyro responds and corrects by increasing the tail RPM.

If you're not using HH mode, you need to program your radio to mix some rudder control with the left stick. This is usually called "revo" (revolution) mixing and most computer heli radios have a special mixing screen for setting this up.

Try setting the gyro gain quite high for first experiments. It sounds like you dont have enough input from the gyro. And use the training gear to avoid breakages until the tail is sorted (from bitter experience...)

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11-29-2005 11:12 AM  12 years agoPost 8
Dbl Heelix

rrNovice

Brooklyn, New York

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Rob,

Thanks for all the answers. I do have the gyro set up properly. I have the esc connected to the gyro and the gyro into ch 4 and the yellow gain wire going to channel 5. I am using HH and have a steady red light on the gyro...revo is turned off in the tx. I will bump up the atv's to see if it will hold. Thanks for all the answers...time for bed.

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Helicopter
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Century Radikal E640 - Swift 16 NX
› I feel like shooting myself in the face!!!
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