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futaba 9c throttle cut

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Old 01-11-2004, 12:35 PM
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rsmokin
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Default futaba 9c throttle cut

I need help in steps to assign throttle cut function to Switch F (the spring return switch on the upper left bottom.
I don't see that as an option in the throttle cut menu, but I know folks on here have done it
thanks.
Old 01-11-2004, 01:06 PM
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Josey Wales
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Default RE: futaba 9c throttle cut

Hmmm..not sure where you are looking but under the throttle cut menu at the bottom you just assign the switch to f and then page down one more and change that to down..
Old 01-11-2004, 07:55 PM
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Geistware
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Default RE: futaba 9c throttle cut

I just checked and "F" is an option in the throttle cut menu.
If you don't have it then you have a bug in your software.
Old 01-12-2004, 07:54 AM
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dant-RCU
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Default RE: futaba 9c throttle cut

I use switch "F" for my throttle cut. Never had a problem assigning the switch as it appears in the switch list.

Not sure where your problem lies.

Dan
Old 01-12-2004, 09:35 AM
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glowplug
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Default RE: futaba 9c throttle cut

I use switch F also....like Redrum said, make sure it's set to move the right direction.
Old 01-13-2004, 12:12 AM
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3DFanatic
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Default RE: futaba 9c throttle cut

If you move the dial too fast it will skip selections... Try slowing down???
Old 01-13-2004, 08:05 PM
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kh6oo
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Default RE: futaba 9c throttle cut

Just wondering, why would you use a spring load switch for throttle cutting? I am a rookie and have been using switch A becouse it ergonomicly makes sence to me. Is there an advantage to using F?

Tom
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Old 01-13-2004, 08:07 PM
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Josey Wales
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Default RE: futaba 9c throttle cut

To me its just more convienient and you dont have to worry about it being on by accident. Just push it down to cut the throttle and then its automatically back off..
Old 01-13-2004, 09:57 PM
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glowplug
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Default RE: futaba 9c throttle cut

Same reason as Redrum stated, you don't have to worry about flipping it back off.
Old 01-13-2004, 10:23 PM
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Default RE: futaba 9c throttle cut

Doesn't anyone use Idle-Down? I put my engine on my G 3-position. Up is high idle, center is Idle Down, Down is kill.
Old 01-13-2004, 10:29 PM
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Josey Wales
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Default RE: futaba 9c throttle cut

Im glad you mentioned idle down...Ive been trying to see the advantage in this feature. If you set your idle speed with the elec trim to the lowest point so it wont quit, why do you need the idle down? If the trim is set correctly you can throttle back with the stick and not worry about it quitting. To me its just an extra step thats not needed.
Old 01-13-2004, 11:33 PM
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Ryans Rebel
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Default RE: futaba 9c throttle cut

I use the spring loaded switch for throttle cut also. I use the switch in front of "F" for idle-down. Idle down is used to keep the idle setting up on the engine that would normally be to high for landing. The reason for the high idle in flight is to help ensure that the engine remains running in low motor manouvers such as stallturns and tail slides. This really makes since when you consider the cost of some of todays larger models.

Ryan
Old 01-14-2004, 12:44 PM
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2fast4u
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Default RE: futaba 9c throttle cut

The reason for the high idle in flight is to help ensure that the engine remains running in low motor manouvers such as stallturns and tail slides. This really makes since when you consider the cost of some of todays larger models.
I never thought about that. I have never had that problem, but it makes sence too.
Old 01-14-2004, 12:51 PM
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MustangFan
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Default RE: futaba 9c throttle cut

I agree with "The Rebel".
I use idle down also as my "normal" idle .... then my normal idle is "high idle"....... works great and keeps the engine from stalling in the air.

Then I assign the engine cutoff to a separate switch that is "out of the way" when I fly.

So many choices .... so little time (experience).

These computer radios are great !!!!!
Old 01-14-2004, 01:44 PM
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Default RE: futaba 9c throttle cut

I use idle-down on my engines that require it, but some of my engines are very reliable at low RPM and don't need a flight idle. When I use idle-down I use the small switch in front of the spring-loaded "F" switch. I don't use the three position switch for idle-down and cutoff becuase I think it would dramatically increase the odds of me accidentally killing the engine in flight.
Old 01-15-2004, 12:48 AM
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Default RE: futaba 9c throttle cut

Ryan, good point. D'oh! You just jinxed me! I run a high idle on my 2-stroke glow engines cause they're kinda cranky in the winter until you run them for a few minutes and they warm up to a few hundred degrees. I'll probably just leave it on high for startup this summer and use Idle-Down the rest of the time.
Old 01-18-2004, 07:14 PM
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amcross
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Default RE: futaba 9c throttle cut

Ryan,
Remember, throttle cut won't kill your engine above a certain stick point, so its' not quite such a worry but, sa everyone has said, there are lots of choices in this radio to make it so the user can make things work just how s/he likes. There are VERY FEW features in this radio that can't be switch assigned to fit the users personal style.
Old 01-19-2004, 12:33 AM
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Default RE: futaba 9c throttle cut

But it will when you're setting up for a landing an click over to idle-down and OOPS go to far []
Old 01-19-2004, 07:57 AM
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Default RE: futaba 9c throttle cut

Another reason I use the spring loaded F switch is if your coming in for a landing and need to decrease speed you can just "blip" the swithch and the plane will slow down nicely. Works good.
Old 01-19-2004, 08:19 AM
  #20  
rajul
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Default RE: futaba 9c throttle cut

ORIGINAL: MustangFan

I agree with "The Rebel".
I use idle down also as my "normal" idle .... then my normal idle is "high idle"....... works great and keeps the engine from stalling in the air.

Then I assign the engine cutoff to a separate switch that is "out of the way" when I fly.

So many choices .... so little time (experience).

These computer radios are great !!!!!

How do you guys make adjustments to the hi and lo idles ? Uisng the dial knob as mentioned in the 9C manual ? I found that it is possible to adjust the lo and hi idles on the 9C using the throttle trim, and there's no need to go into the idle down menu (except to activate it and assign the switch). Just flip the switch to lo or hi and adjust the trim accordingly. This is not mentioned in the 9C manual, unless I have an outdated one. Very convenient in the field
Old 01-20-2004, 01:13 AM
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Default RE: futaba 9c throttle cut

Throttle trim only adjust the high idle. To adjust idle-down you have to go into the menu.
Old 01-20-2004, 01:16 AM
  #22  
rajul
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Default RE: futaba 9c throttle cut

ORIGINAL: 3DFanatic

Throttle trim only adjust the high idle. To adjust idle-down you have to go into the menu.
That's what I thought initially. Try this, set a idle-down value with your knob. Then get out of the menu, put your switch to idle-down, and use your trim. Then get into the menu again, the idle-down value will be changed based on you trim adjustment. I use this method at the field all the time, and IMO, the idle down or up function should be designed as such for convenience.

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