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Mikado Modellhubschrauber . GrandRC . CanoMod

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Radio - Futaba FASST > 12Z - throttle hold, atv and curve settings
 
 
RCfun
Senior Heliman
Location: Denmark

Using my 12Z the carb on my heli is fully closed and and opened with an ATVs(end points) of 128 128.

Whats the best way to set up


End points: Limit travel travel limit
Throttle hold idle: offset
Throttle hold cut: offset
Throttle curve: Start value (normal mode. should go to idle at low stick)
Trim: start value and type of trim (Norm, Ctrm, Alt - I assume alt)


Right now I use:

End points: 128 128 128 128
Throttle hold idle offset: 0%
Throttle hold cut: 0%
Throttle curve start: 0%
Trim: Set it to ATL and bumped it up from middle position to achieve an idle setting above fully closed carb. Trims are combined.


Is there a better way of setting these pamerters. Fx I could lower the low end end point travel and then center the trim.

Also I have looked at Jasons Krause's setup and he has set the throttle trim to be seperate in hold and idle condition - why not combined in all modes?

Any suggestions (hope the above makes any sense)?


Thanks
RCfun
05-01-2008 12:18 AM
 
 
Paul Susbauer
Senior Heliman
Location: Spokane Valley, WA

I would mechanically try to make it so everything is at 100% for both full and low throttle. Make sure both arms are parallel to each other. Then there is no need for offsets or anything. This will make things 10x better. From there you don't need to do anything tricky, just set your various idle settings for different modes. (I typically have my hold a hair higher than in normal should I need to abort an auto)

Remember the K.I.S.S. principle.

--Paul

Ineptitude - If you can't learn to do something well, learn to enjoy doing it poorly.
05-06-2008 04:14 AM
 
 
RCfun
Senior Heliman
Location: Denmark

Thank you for your comments

The reason I have the endpoints at 128 128 is that I was previously using a Multiplex radio where the end points was at 98 and 98. Since Multiplex and Futaba uses different ranges for enpoints I ended up with 128 and 128. It is set up with parallel arms and is mechanical sound.

Now with

trim at center
throttle curve staring at 0
and stick at buttom


the engine shuts off.

What I want to know is: How do I set it up so it:

1) Idles with throttle at low end
2) Trim at center (so I can fine tune idle up or down slightly depending on weather)
3) Cut engine with the "throttle hold cut" function
4) Idles with the "throttle hold idle" function

As far as I can tell I have two options

1) Leave end points at 128 128 and have the trottle curve first point start at a point above 0% that gives me a nice idle

2) Lower the low end point but keep the limit at 128. This would allow me to have the throttle curve start at 0%


Which way is best or is there a third option that I have overlooked that is better? Currently I prefer number 2 because it is simple to remember that the throttle curve can start in 0 in hold and normal mode.


Thanks
/Flemming
05-06-2008 08:31 AM
 
 
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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Radio - Futaba FASST > 12Z - throttle hold, atv and curve settings
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