Correct initial throttle setting
 

Ok, first of all, I'm very new to this sport. I have been flying a Super Cub for the past 3 months and feel like I can fly it in my sleep. I have also been attendnig the weekly training night of my local club and putting time in on their trainer planes. I also have been flying on my G4 sim. None of that can help me figure this out. I just purchased an Extra 300S. I plan on taking it to the club feild this week to have one of the insturctors trim it out and buddy up with me, but I want to get all the tuning done before then.

What is the proper way to set the throttle so that when I pull the throttle stick all the way down it idles without dieing? I could just adjust the push rod from the servo to the carb so that when the servo is all the way "back" the throttle is still a little bit open. But then, how would I kill the throttle once its on the ground?

Sorry for the 101 level question, but hey, we all have to learn.

Nate

RE: Correct initial throttle setting
 

Here we go...With throtlle all the way closed and trim all the way down as well..the carb opening should be closed completely...if not adjusted it mechanically... you want to have a a small cresent opening in the carb (about a 1/16 to a 1/8 in or so) with throttle trim set at 1/2 way..this will give you your idle...if it idles to slow or fast adjust the trim....now with the throttle all the way up, the carb opening should be full open....if not again adjust mechanically...yea you can get the balance between closed and open...you just gotta work on it
Good Luck and Good Flyin

RE: Correct initial throttle setting
 

What transmitter do you have?

My transmitter has mechanical trims. I pull the throttle all the way back, and the trim all the way back. Then I adjust the pushrod so the carb is fully closed. When the trim is moved forward the carb opens slightly and I can use it to adjust the idle.

If you have a computer radio with digital trims, look for a "throttle cut" function that is typically assigned to a switch. This function could have a dozen different names depending on the brand and model of your transmitter.

RE: Correct initial throttle setting
 

I use a DX6i. There is a "Throttle Cut" button. So there is a way to program this button so that it will take the throttle from "almost" closed to fully closed?

RE: Correct initial throttle setting
 

Basically, all the throttle cut button does is put the throttle servo to full down stick and full down trim. It obviously does not move the throttle lever, but it does this electronically.

So to set this up, you need to make it so that when you are idling, your trim setting is in the middle or upper end of the trim travel. Then just go to the programming menu and make sure the throttle cut function is active. Then when you push the throttle cut button, it will take the trim down to the lowest setting. When you release the button, then it will return the trim to where you had it earlier.

RE: Correct initial throttle setting
 

Follow JetMec50 reply and you have it right.

RE: Correct initial throttle setting
 

On page 3 of your manual it directs you to page 41 for throttle cut. Read pages 41 and 42 and enable the function. Then turn on the receiver and see what it does.

You'll need to enable the function each time you add a new model to the memory since the function is inhibited by default when you set up a new model.

RE: Correct initial throttle setting
 

Thanks guys for the help. Between barely setting the throttle to open and activating the throttle cut button, I've got is all working at it should be.

Nate