Futaba 8FG and GY401 set up
08-24-2010, 06:58 AM
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Futaba 8FG and GY401 set up
I have a Futaba T8FG tx, 7 channel rx, with a Futaba GY401 gyro plus Digital Servo installed in a Raptor 50.
My radio set up is this: I have a toggle switch SF set to change between HH and rate mode. I have the Gyro program set to: Cond : Normal, Idle up 1, "Type" set to GY AVCS. The installation instructions for the GY401 seems to contradict the set up instructions in the FUtaba 8FG manual. Normally I would expect to set the Gyro gain by the HH/Rate end point. When I try to do this it is overridden by the rate settings in the Gyro program. EG Lowering the rate in either has no effect on the Gyro performance, it is way too sensative. I cannot get the gain down in either and this is resulting in an uncontrollable hunting by the tail especially in fast forward flight. The instructions in the TX manual state that "if the gyro is anything other than a Futaba GYA type then set the "Type" to Norm. Is the GY401 a GYA type or not? If I do this then the AVCS disappears and the rate defaults to 90% in normal curve and 75% in Idle up1. What the hell is going on!!!
What does the % rate refer to anyway? I have contacted my retailer who put me in touch with Futaba UK. Futaba UK have no idea on how to program the 8FG with the GY401. There suggestion was to inhibit the gyro setting completely and use the End Point in channel 5 to reduce increase gain. When I asked how to do this they did not know. If I could do this how would I increase the gain for higher head speeds needed for 3d or when sitching to Idle up 1?
Anyone got any ideas or work through that they have used or set ups that work?
Thanks in advance
PS I had no problems with my 8UP!!! And the software on the 12 channel is different again./
My radio set up is this: I have a toggle switch SF set to change between HH and rate mode. I have the Gyro program set to: Cond : Normal, Idle up 1, "Type" set to GY AVCS. The installation instructions for the GY401 seems to contradict the set up instructions in the FUtaba 8FG manual. Normally I would expect to set the Gyro gain by the HH/Rate end point. When I try to do this it is overridden by the rate settings in the Gyro program. EG Lowering the rate in either has no effect on the Gyro performance, it is way too sensative. I cannot get the gain down in either and this is resulting in an uncontrollable hunting by the tail especially in fast forward flight. The instructions in the TX manual state that "if the gyro is anything other than a Futaba GYA type then set the "Type" to Norm. Is the GY401 a GYA type or not? If I do this then the AVCS disappears and the rate defaults to 90% in normal curve and 75% in Idle up1. What the hell is going on!!!
What does the % rate refer to anyway? I have contacted my retailer who put me in touch with Futaba UK. Futaba UK have no idea on how to program the 8FG with the GY401. There suggestion was to inhibit the gyro setting completely and use the End Point in channel 5 to reduce increase gain. When I asked how to do this they did not know. If I could do this how would I increase the gain for higher head speeds needed for 3d or when sitching to Idle up 1?
Anyone got any ideas or work through that they have used or set ups that work?
Thanks in advance
PS I had no problems with my 8UP!!! And the software on the 12 channel is different again./
08-24-2010, 07:20 AM
#2
RE: Futaba 8FG and GY401 set up
No worries it's easy.
Set type to GY for any heading hold gyro.
Sounds like you're using your flight mode or flight condition switch COND so you can set your gain per flight mode. Unless you're flying F3C or something thats a bit over kill, I'd just pick a free toggle switch but in any case the setup is the same.
RATE is the amount of gain. AVC 50 is 50 percent gain in heading hold mode and thats where I would start in all modes.
Next make sure the end points on the gyro gain channel are set to 100/100
I'd start with AVC 50 to 65
Set type to GY for any heading hold gyro.
Sounds like you're using your flight mode or flight condition switch COND so you can set your gain per flight mode. Unless you're flying F3C or something thats a bit over kill, I'd just pick a free toggle switch but in any case the setup is the same.
RATE is the amount of gain. AVC 50 is 50 percent gain in heading hold mode and thats where I would start in all modes.
Next make sure the end points on the gyro gain channel are set to 100/100
I'd start with AVC 50 to 65
08-24-2010, 09:06 AM
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RE: Futaba 8FG and GY401 set up
ORIGINAL: BarracudaHockey
No worries it's easy.
Set type to GY for any heading hold gyro.
Sounds like you're using your flight mode or flight condition switch COND so you can set your gain per flight mode. Unless you're flying F3C or something thats a bit over kill, I'd just pick a free toggle switch but in any case the setup is the same.
RATE is the amount of gain. AVC 50 is 50 percent gain in heading hold mode and thats where I would start in all modes.
Next make sure the end points on the gyro gain channel are set to 100/100
I'd start with AVC 50 to 65
No worries it's easy.
Set type to GY for any heading hold gyro.
Sounds like you're using your flight mode or flight condition switch COND so you can set your gain per flight mode. Unless you're flying F3C or something thats a bit over kill, I'd just pick a free toggle switch but in any case the setup is the same.
RATE is the amount of gain. AVC 50 is 50 percent gain in heading hold mode and thats where I would start in all modes.
Next make sure the end points on the gyro gain channel are set to 100/100
I'd start with AVC 50 to 65
Thanks for the reply. You make it sound so easy so can I ask for some clarification please?
1). In the Gyro screen what does COND and SW mean in the Gyro and Dual Rate programmes?
2). Is the GY401 a GYA Gyro or not? If it is not a GYA gyro does that mean I set the Gyro Type to Normal in Gyro Programme?
Thanks again for your help.
Tim
08-25-2010, 09:55 PM
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RE: Futaba 8FG and GY401 set up
1). In the Gyro screen what does COND and SW mean in the Gyro and Dual Rate programmes?
this is asking you what type and name of switch you want to use,
2). Is the GY401 a GYA Gyro or not? If it is not a GYA gyro does that mean I set the Gyro Type to Normal in Gyro Programme?
I would use GY,
your use of end points for the gain is very wrong, what you call gain futaba call RATE,
if I under stand you right first you want to adjust the gain and also you would like to select for example HH on IDLE1 with a gain of 40% but want IDLE2 to run NORMAL and 20%, ect
first go to the ADVANCE MENU then go GYRO-SENSE, then make the screen say MIX>ACT MODE>GY SW>Cond then your see RATE-NORM> this is asking you what you want in normal mode, if you want heading hold then select AVC and say 40% to start with, this gives you HH & gain 40% then do IDL1 >AVC 40%
IDL2> NOR 20%
ect
to check it's working go to SERVO's and watch servo 5 when you switch from IDLE1 to ILDE2,
I hope this helps
this is asking you what type and name of switch you want to use,
2). Is the GY401 a GYA Gyro or not? If it is not a GYA gyro does that mean I set the Gyro Type to Normal in Gyro Programme?
I would use GY,
your use of end points for the gain is very wrong, what you call gain futaba call RATE,
if I under stand you right first you want to adjust the gain and also you would like to select for example HH on IDLE1 with a gain of 40% but want IDLE2 to run NORMAL and 20%, ect
first go to the ADVANCE MENU then go GYRO-SENSE, then make the screen say MIX>ACT MODE>GY SW>Cond then your see RATE-NORM> this is asking you what you want in normal mode, if you want heading hold then select AVC and say 40% to start with, this gives you HH & gain 40% then do IDL1 >AVC 40%
IDL2> NOR 20%
ect
to check it's working go to SERVO's and watch servo 5 when you switch from IDLE1 to ILDE2,
I hope this helps
08-26-2010, 03:22 AM
#5
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RE: Futaba 8FG and GY401 set up
ORIGINAL: bikemad
1). In the Gyro screen what does COND and SW mean in the Gyro and Dual Rate programmes?
this is asking you what type and name of switch you want to use,
2). Is the GY401 a GYA Gyro or not? If it is not a GYA gyro does that mean I set the Gyro Type to Normal in Gyro Programme?
I would use GY,
your use of end points for the gain is very wrong, what you call gain futaba call RATE,
if I under stand you right first you want to adjust the gain and also you would like to select for example HH on IDLE1 with a gain of 40% but want IDLE2 to run NORMAL and 20%, ect
first go to the ADVANCE MENU then go GYRO-SENSE, then make the screen say MIX>ACT MODE>GY SW>Cond then your see RATE-NORM> this is asking you what you want in normal mode, if you want heading hold then select AVC and say 40% to start with, this gives you HH & gain 40% then do IDL1 >AVC 40%
IDL2> NOR 20%
ect
to check it's working go to SERVO's and watch servo 5 when you switch from IDLE1 to ILDE2,
I hope this helps
1). In the Gyro screen what does COND and SW mean in the Gyro and Dual Rate programmes?
this is asking you what type and name of switch you want to use,
2). Is the GY401 a GYA Gyro or not? If it is not a GYA gyro does that mean I set the Gyro Type to Normal in Gyro Programme?
I would use GY,
your use of end points for the gain is very wrong, what you call gain futaba call RATE,
if I under stand you right first you want to adjust the gain and also you would like to select for example HH on IDLE1 with a gain of 40% but want IDLE2 to run NORMAL and 20%, ect
first go to the ADVANCE MENU then go GYRO-SENSE, then make the screen say MIX>ACT MODE>GY SW>Cond then your see RATE-NORM> this is asking you what you want in normal mode, if you want heading hold then select AVC and say 40% to start with, this gives you HH & gain 40% then do IDL1 >AVC 40%
IDL2> NOR 20%
ect
to check it's working go to SERVO's and watch servo 5 when you switch from IDLE1 to ILDE2,
I hope this helps
You have just illustrated the confusion that exists due to the poorly written manual and out of date instructions for the GY401when used with the T8FG. Which is ridiculous when you consider how many 401's are out there.
08-26-2010, 08:41 AM
#6
RE: Futaba 8FG and GY401 set up
Not sure what put you under the impression that there's no mixes or gyro programming in the 8FG
All of Hobbico's web sites are down right this minute but I'll download and take a look at the manual when they come up.
COND = condition or flight condition. You can assign the gyro to a switch or if you set it to COND you can assign a value to each flight mode.
For the 401 its a GY gyro so make sure type is GY or GYA, not NOR
All of Hobbico's web sites are down right this minute but I'll download and take a look at the manual when they come up.
COND = condition or flight condition. You can assign the gyro to a switch or if you set it to COND you can assign a value to each flight mode.
For the 401 its a GY gyro so make sure type is GY or GYA, not NOR
08-27-2010, 03:41 AM
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RE: Futaba 8FG and GY401 set up
ORIGINAL: BarracudaHockey
Not sure what put you under the impression that there's no mixes or gyro programming in the 8FG
All of Hobbico's web sites are down right this minute but I'll download and take a look at the manual when they come up.
COND = condition or flight condition. You can assign the gyro to a switch or if you set it to COND you can assign a value to each flight mode.
For the 401 its a GY gyro so make sure type is GY or GYA, not NOR
Not sure what put you under the impression that there's no mixes or gyro programming in the 8FG
All of Hobbico's web sites are down right this minute but I'll download and take a look at the manual when they come up.
COND = condition or flight condition. You can assign the gyro to a switch or if you set it to COND you can assign a value to each flight mode.
For the 401 its a GY gyro so make sure type is GY or GYA, not NOR
In my old FF8 it was simple. All you did was switch between HH and Rate depending what flight mode you where in. So if you where in circuit and got disorientated you could get into a tail in hover, switch to HH and reverse into a comfortable hover in front. I guess that is what I want to do but it seems that the Gyro prog in the 8FG cannot be INH.
Tim
08-27-2010, 08:31 AM
#9
RE: Futaba 8FG and GY401 set up
You can assign the gyro to a toggle and not the flight mode.
You're giving away your age though
nobody flys in rate mode anymore 
There's plenty of P-Mixes available on the 8 in Heli mode. Maybe you're not accessing the advanced menu.
You're giving away your age though
nobody flys in rate mode anymore There's plenty of P-Mixes available on the 8 in Heli mode. Maybe you're not accessing the advanced menu.
08-28-2010, 02:23 AM
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RE: Futaba 8FG and GY401 set up
Well it may be an age thing, but its the way I was taught. I cannot find any P mixes and I have got into the advanced menu. Think I will return this TX to Futaba. There may be a software issue.
