Servo flutter
09-11-2012, 03:49 PM
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Servo flutter
I am finishing setting up my Great Planes Cherokee and now I have some flutter in the ailerons. When I move the ailerons and move them back to neutral position sometimes one or both will flutter alittle for 1-10 seconds the stop. I dont know what is causing it. I have an extension plugged into the reciever so I can easily remove the wing. Let me know what your thoughts are thanks.
09-11-2012, 05:35 PM
#6
RE: Servo flutter
Unplug and then reseat all of the connections from the receiver to the servos a couple of times. That may fix the problem. If it does, you may have to do that again after a while-dirty/faulty connections. Happens to me on a couple of different planes from time to time. Turn on the xmitter and plane, then check aileron response before securing the wing to the fuselage each time you go the field to fly. Using two channels and mixing makes it a bit more complicated to trim the ailerons.
09-11-2012, 05:40 PM
#7
RE: Servo flutter
ORIGINAL: golf4two
Unplug and then reseat all of the connections from the receiver to the servos a couple of times. That may fix the problem. If it does, you may have to do that again after a while-dirty/faulty connections. Happens to me on a couple of different planes from time to time. Turn on the xmitter and plane, then check aileron response before securing the wing to the fuselage each time you go the field to fly. Using two channels and mixing makes it a bit more complicated to trim the ailerons.
Unplug and then reseat all of the connections from the receiver to the servos a couple of times. That may fix the problem. If it does, you may have to do that again after a while-dirty/faulty connections. Happens to me on a couple of different planes from time to time. Turn on the xmitter and plane, then check aileron response before securing the wing to the fuselage each time you go the field to fly. Using two channels and mixing makes it a bit more complicated to trim the ailerons.
How does using a mix make it more complicated to trim the ailerons? It's all done at the TX and is a 5 min job.
09-12-2012, 07:30 AM
#9
RE: Servo flutter
Technically it's not flutter, flutter happens while the plane is in flight.
Just being a wise guy. But I have has the same problem and traced it to a bad y. You could do as suggested an hook it up to seperate channels but you will have to label them left and right or you will be backwards if you plug them in wrong.
Just being a wise guy. But I have has the same problem and traced it to a bad y. You could do as suggested an hook it up to seperate channels but you will have to label them left and right or you will be backwards if you plug them in wrong.
09-12-2012, 09:02 AM
#10
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RE: Servo flutter
ORIGINAL: raptureboy
Technically it's not flutter, flutter happens while the plane is in flight.[img][/img] Just being a wise guy. But I have has the same problem and traced it to a bad y. You could do as suggested an hook it up to seperate channels but you will have to label them left and right or you will be backwards if you plug them in wrong.
Technically it's not flutter, flutter happens while the plane is in flight.[img][/img] Just being a wise guy. But I have has the same problem and traced it to a bad y. You could do as suggested an hook it up to seperate channels but you will have to label them left and right or you will be backwards if you plug them in wrong.
09-12-2012, 03:33 PM
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RE: Servo flutter
Could be a bad servo, reciever... just swap channel 1 and 4 and see what's fluttering now.
If it's still the ailerons, plug in one servo at a time, without the y cable.
Then you got it pretty much nailed down to a bad cable
If it's still the ailerons, plug in one servo at a time, without the y cable.
Then you got it pretty much nailed down to a bad cable
09-12-2012, 03:40 PM
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RE: Servo flutter
And using separate channels is also a good idea, not always necessary though.
On a computer radio it's very easy to do, takes a minute and the trim works exactly the same.
Most of my planes do a nice straight roll, but some don't - this is where you want separate channels and program some differential.
I use a Futaba 8FG and once you get familiar with the menus, it's very easy to program.
On a computer radio it's very easy to do, takes a minute and the trim works exactly the same.
Most of my planes do a nice straight roll, but some don't - this is where you want separate channels and program some differential.
I use a Futaba 8FG and once you get familiar with the menus, it's very easy to program.
09-12-2012, 04:52 PM
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RE: Servo flutter
ORIGINAL: OliverJacob
And using separate channels is also a good idea, not always necessary though.
On a computer radio it's very easy to do, takes a minute and the trim works exactly the same.
Most of my planes do a nice straight roll, but some don't - this is where you want separate channels and program some differential.
I use a Futaba 8FG and once you get familiar with the menus, it's very easy to program.
And using separate channels is also a good idea, not always necessary though.
On a computer radio it's very easy to do, takes a minute and the trim works exactly the same.
Most of my planes do a nice straight roll, but some don't - this is where you want separate channels and program some differential.
I use a Futaba 8FG and once you get familiar with the menus, it's very easy to program.
09-13-2012, 01:19 AM
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RE: Servo flutter
I took everyones advice and set the plane up for aileron mixing. It appears the problem was in the Y cable. I also swapped out the crystal I the crystal. No problems now except for having 3 servos I have to plug in on the wing. I used colored page tabs to label the ends so they are easy to connect.
09-13-2012, 08:03 AM
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RE: Servo flutter
ORIGINAL: devil505
I took everyones advice and set the plane up for aileron mixing. It appears the problem was in the Y cable. I also swapped out the crystal I the crystal. No problems now except for having 3 servos I have to plug in on the wing. I used colored page tabs to label the ends so they are easy to connect.
I took everyones advice and set the plane up for aileron mixing. It appears the problem was in the Y cable. I also swapped out the crystal I the crystal. No problems now except for having 3 servos I have to plug in on the wing. I used colored page tabs to label the ends so they are easy to connect.
The only servo leads I use are two {usually} short ones I leave in my RX for the ailerons so I'm not plugging in and out my aileron leads into the RX. The leads can also cause problems so I just cut and splice extension wire into my servos requiring an extension. By soldering in the extensions I never have a lead corrision problem. I'm really lazy and don't want to be pulling leads and cleaning them. Takes me a while to solder in the extensions but once done I can forget about them.
Glad that solved your problem. Pointing out the Y is easy, they tend to cause problems like that very often.
