The 3DRCForums -Discuss Anything Thread-

[ryan_m]

I have heard it said by many that the ideal setup is to have your servo travel in the 130-140% range in each direction. Usually servos stop moving somewhere around the 140-150% range, so this gets them moving as much as they can move without trying to move past the point that they stop. That said, if the servo stops at say 138%, don't set your tx past that point, in fact come back down a few % to make sure you aren't trying to overdrive it.

Like 3dNater said, you want the travel as high as possible to maximize resolution, so you don't want a super long arm that makes your travel be only 90%, use a shorter arm, get that travel up in the 130-140% range and you will be set.

And on that Yak, HS-65's will be a dramatic improvement over HS-55's! Do it.

 

[alawson999]

[MENTION=33]ryan_m[/MENTION]

Thank You - HS 65s it will be - with the shortest possible servo arms

 

[dth7]

Great question Alan. I will make an attempt at answering it based on what I have read from others as well as what makes sense to me.

The short answer is: maximize servo travel and use the shortest arms you can get away with to achieve your desired throws.

By setting the travel as high as possible on your transmitter you are maximizing the useful resolution. This makes the movement on your stick map more accurately to what your servo does.

Long servo arm are often necessary to achieve desired throws even when you have the end points maxed out in your transmitter. When this happens you should still set it to the shortest hole that gets you the throws you want. Make only small adjustments on your end points to avoid binding etc.

One final point. The longer your servo arms are, the harder the servo has to work. If you go too long you will begin to have blow-back on the surfaces. This is the biggest reason we tend to use really beefy servos on our 3d planes compared to what you might use on a cub or warbird.

Hope this helps

Nate. Good explanation! And I like the short answer from Alan- "electronic is better than mechanical".
Max electronic to get max throw with min arm length to preserve max torque.

 

[3dmike]

Well said!

 

[clarkj]

Man I love sundays. Go to church then come home and nap. Doesnt get any better than that!!

 

[3dNater]

Happy Easter to all!

 

[3dmike]

Flew on 3 different flights on Wednesday and got the flu on Friday evening.... I hate flying comercial airlines because of all the sick people that get on a flight regardless oh how they feel! Aaaaaaah I feel terrible....

 

[Xpress]

Did some huckin' in the wind yesterday!! It was blowing 10+ the whole day. Wind doesn't really bother me though.

[video=youtube;moVR6f7kq0Q]https://www.youtube.com/watch?v=moVR6f7kq0Q[/video]

 

[alawson999]

[MENTION=2643]3DMIKE[/MENTION]

Sorry to hear you are under the weather.

I've heard that Jack Daniels is good for that

 

[clarkj]

I have to fever to fly only problem is I dont have any planes other than small stuff. I was hooing aeroworks would run another sale and i was going to buy a 50cc edge. I knew i shouldve ordered one the last sale they had. :facepalm: