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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › Just not understanding throttle jockey
04-21-2011 03:31 AM  7 years agoPost 1
wifeorheli

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reno, nevada usa

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Is this basically the same as the align setup as far as the tx setup and flight mixing? Also does the throttle trim have to set all the way down for setup or can i just center it. If not how do i setup the linkage wouldnt the atv on the low side of the throttle not even be close to 100. I have myself so confused someone please straighten me out. I have the align installed but want to try the tj. I have read everything on there site for my tx. Also in main menu aux=aux not aux=inh like align? thanx

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04-21-2011 04:24 AM  7 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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Make your throttle linkage so that the carb barrel fully opens, and fully closes (with the throttle trim set to low), without binding at either end, and with the throttle endpoints as close to 100% as possible. A few percent either way won't kill you but the better your initial mechanical setup is, the better the TJ will work. Odd how with helis, the better the mechanical setup is in general, the better everything else works.

If you are smart, you will realize that adjustable endpoints aren't the only way to achieve the desired mechanical setup. Play with the length of the servo arm and the length of the throttle arm (distance from center of rotation to ball-links), and throttle servo arm to throttle arm geometry can be your friend here. It takes a few more minutes, but again, the extra work is worth the effort.

Simple mechanical installation and setup of the throttle linkage.

With the throttle trim one more time at full low, go through the calibration sequence. It takes only a few seconds to perform.

Set your TX governor control channel to the values that you calculate from the on-line calculator at the Model Avionics site to set the target RPM. If you have a friend with a tach, you can fine tune the RPM using that.

What radio are you using? Your last sentence doesn't make a lot of sense...

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-21-2011 04:33 AM  7 years agoPost 3
wifeorheli

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reno, nevada usa

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thank you for your informative answer i have no problem taking extra time with whatever is neccesary due to thats the nature of helicopters patience! So i have a dx7. Now with throttle linkage off adjust trim all the way down and endpoints -100/100 (if at any point i got here im wrong let im know) now goto center stick adjust linkage so carb is half throttle, Then adjust endpoints for desired travel. What i meant for the aux=aux stuff is on the align you set set the aux=inh instead of aux=aux to mix with flight mode switch my intention is to use aux switch to turn on and off gov not to set rpm.

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04-22-2011 01:56 AM  7 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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If you get the servo/linkage/geometry set right for both ends, the mid range will take care of itself.

How do you plan to set the RPM?

Set endpoints on throttle to 100%.

Set trim to low.

Make linkage for carb barrel closed at low stick, no stalling of servo. Carb barrel full open at full stick, no stalling of servo. End up with endpoints close to 100%, may not be perfect 100%, but be close. Let mid range take care of itself.

I guess you're going to plug the AUX input channel of the TJ into channel 7 of your receiver, and I'll guess that you've mapped channel 5 to the gyro control and are using the flight mode switch to control it. That would leave you with a switch somewhere controlling channel 7 and your governor. So I'd then guess you're going to set the endpoint for one switch position so that the TJ is disengaged, and the other endpoint to set RPM. Is that right?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-22-2011 01:58 AM  7 years agoPost 5
Mike Fortin

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USA

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There is lots of info and videos [url=http://www.modelavionics.com/]

If you need help you can always call Kurt and he will walk you through it.

Have Rotors, Will Fly!

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04-22-2011 02:23 AM  7 years agoPost 6
wifeorheli

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reno, nevada usa

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no i want two rpms linked to flight mode switch. The aux switch i want to only turn it off and on. Whos kurt

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04-22-2011 02:37 AM  7 years agoPost 7
Mike Fortin

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USA

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Kurt is the Owner of Model Avionics. You can call them tomorrow and he will help you out.

Have Rotors, Will Fly!

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04-22-2011 02:38 AM  7 years agoPost 8
wifeorheli

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reno, nevada usa

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cool cool

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