FF7 2.4/GV-1/R617 = not enough channels!!

[t-rex pedro]

Just got the FF7 today and found I didnt have enough channels for all 3 controls (Ele, Ail, Pitch), 2 for the 611 and 3 for the GV-1. I ended up not using the on/off lead on the GV-1 and using a Y lead for the battery and aux RPM function (S1,S2 and S3).

Two questions:

1. Is it safe to use a Y lead with the battery and aux RPM channel?

2. Can I use the 8 channel Fasst receiver with the FF7?

Thanks

[machasm]

I use a Y lead for my Revlock 10 as well and this is connected to the battery channel. Seems to work OK.
Why would you want an 8 channel receiver when you only have a 7 channel TX?
Good luck with it Pete.
Adrian.

[t-rex pedro]

I use a Y lead for my Revlock 10 as well and this is connected to the battery channel. Seems to work OK.
Why would you want an 8 channel receiver when you only have a 7 channel TX?
Good luck with it Pete.
Adrian.

Thanks Ade.
I just dont like using Y leads. Seems a bit messy! And I want to make use of the rest of the functions of the GV-1, 611 etc. Just wondered If I could run it safely and if not would it be possible to run the 8 channel rx from the 7 channel tx? Does the aux RPM count as another channel if assigned to the idle up switch?

[DemonJim]

Pete, I have the same setup, and also don't use the on/off lead of the GV-1 -- there is no need. You can still have an on/off switch AND three idle up RPM values without this lead (that lead is more for mixture control).

What you do is have off-min-max on the GV-1's RS1-RS2-RS3, and then use a mix to have an on/off override switch, and then your idle modes are 50-75-100. Textbook

I believe only the R606/607/617 RXs work with the FF7, and yes it is fine to use the Y-lead to get the power on any channel.

[t-rex pedro]

Pete, I have the same setup, and also don't use the on/off lead of the GV-1 -- there is no need. You can still have an on/off switch AND three idle up RPM values without this lead (that lead is more for mixture control).

What you do is have off-min-max on the GV-1's RS1-RS2-RS3, and then use a mix to have an on/off override switch, and then your idle modes are 50-75-100. Textbook

I believe only the R606/607/617 RXs work with the FF7, and yes it is fine to use the Y-lead to get the power on any channel.

Jim, I have to thank you for your assistance. I searched last night and found your inputs on the 9c and as much as I hated doing it I knew it had to go!! Also, your recommendations for the FF7 really helped me decide to change to 2.4. Thank you.

As for the GV-1, I wont miss the on/off function as I didnt use it anyway. I actually run norm (RS-1) at 1800rpm, Idle 1 (RS-2) 1950rpm and idle 2 (RS-3) at 2100rpm and this coincides with switch E for Idle up.

Do you use the aux RPM lead or a mix to get different head speeds? This is the one I am using the Y lead shared with the battery.

[DemonJim]

I use the governor screen for all RPM settings as normal, I only use a mix for the on-off override.

I should probably explain how to get the mix so a switch overrides the governor RPM - you actually need to use two offset p-mixes that drop CH7 down 100% for it to override all idle-up modes. If you only do it on one mix, you'll find it doesn't work for idle-2. Hope you see what I mean

[t-rex pedro]

I use the governor screen for all RPM settings as normal, I only use a mix for the on-off override.

Think I understand !!! Not sure if I would do this as I didnt use the on/off function on the 9C/149rx. Maybe useful for setting throttle curves etc but I just let the GV-1 take care of that!!

[t-rex pedro]

I use the governor screen for all RPM settings as normal.

Do you use a Y lead for this? I found I could either use the remote gyro gain or aux rpm but not both with 7 channels.

[machasm]

Think I understand !!! Not sure if I would do this as I didnt use the on/off function on the 9C/149rx. Maybe useful for setting throttle curves etc but I just let the GV-1 take care of that!!

I don't know that much yet Pete so I may be way off base here but I read somewhere that you should not wholly rely on the governor to give you your headspeed but should have a good throttle curve in case the Governor fails.
A magnet could get thrown or the sensor fail and then the GV would switch off and you would then be relying on your throttle curve.
Adrian.

[DemonJim]

To try to explain it better, this override mix method only works if you have RS-1 set to OFF. This is important, otherwise the switch would drop you down to 1800 (RS1) and not turn off the governor. ie you need RS1 to be OFF.

So instead of 0-50-100 for CH7 on the governor screen, you set it to 50-75-100, and you would still have 1800-1950-2100 as before on switch E for the idle modes, because you set OFF-1800-2100 on the RS1-RS2-RS3 respectively.

This is all no use if you don't want a governor on/off, but handy info if anyone else reading this wants to know how to do it.

Yep, I use a Y-lead to share the power from the 2-in-1 with the governor RPM control lead (ie both go into CH7 on the RX).

[t-rex pedro]

To try to explain it better, this override mix method only works if you have RS-1 set to OFF. This is important, otherwise the switch would drop you down to 1800 (RS1) and not turn off the governor. ie you need RS1 to be OFF.

So instead of 0-50-100 for CH7 on the governor screen, you set it to 50-75-100, and you would still have 1800-1950-2100 as before on switch E for the idle modes, because you set OFF-1800-2100 on the RS1-RS2-RS3 respectively.

This is all no use if you don't want a governor on/off, but handy info if anyone else reading this wants to know how to do it.

Yep, I use a Y-lead to share the power from the 2-in-1 with the governor RPM control lead.

I'm with you now!!!

[DemonJim]

As Adrian says, to avoid a nasty mid-air surprise ensure your throttle curves are sensible values in case the governor fails (usually down to a sensor problem or thrown magnets).

This is where the on-off override mixes come in handy as to disable it you just flip a switch rather than having to adjust the GV-1 itself. It's also good practice to learn collective management needed when you don't have a governor

[t-rex pedro]

I don't know that much yet Pete so I may be way off base here but I read somewhere that you should not wholly rely on the governor to give you your headspeed but should have a good throttle curve in case the Governor fails.
A magnet could get thrown or the sensor fail and then the GV would switch off and you would then be relying on your throttle curve.
Adrian.

I have back up throttle curves incase anything goes wrong on the governor mate. I just dont set them up to fly perfectly as the gov takes care of that.

[machasm]

I just dont set them up to fly perfectly as the gov takes care of that.

Wish I could fly perfectly. With or without a Gov!
Adrian.

[t-rex pedro]

Me too Adrian. We will get there though!!!!