Do anyone know if there is a maker of such an item. A servo extension that will allow you to plug 4 aileron servos into one line and then into a JR radio. I could go nuts trying to figure out the mixing and I have enough channels (8103 PCM)



Thanks!

None that I am aware of. Looks like you either use a bunch of Y connectors or make your own. Making your own wouldn't be that hard provided you can solder and have a large capacity battery to power everything (Cheaper than buying all the Ys ).

I just wrote to servo city, asked them if they could provide a quad Y connector. Building one would not be hard if you have the tool for the plugs and I feel a 6 volt 2100maH would do it but may shorten the life a bit although you are still powering the same servos and if you increas the wire size there may not be any difference at all. I can just see all of those Y's now......[:@]

Why not just use a multi-box, then you will be able to adjust all the servos, and run an other bat just for them.

Cheers

Get 2 y harnesses and in the radio go to wing type and put flaperon (flaperon wont work unless you set it in the programming but this allows you to use two channels for ailerons) put both right servos in one harness and both left in the other, Channel 2 and 6 are what you will plug the Y harnesses into this way you can adjust both ailerons on one side together with subtrim if needed.

Dauntae

jr used to make a multi box,don't know if it still available though.

Dauntae, I will try that and see what happens, I should be able to trim things up that way.



Thanks guys

you know it only takes 3 y's to connect 4 servo's 1 y from the recvr to the LT and RT side. on the LT side 1 y to both servos on the RT side 1 y to both servos just make sure that both servos on one side are facing the same (either pointing inboard or out ) and the other side is opposite.

I had the same problem with a WM Ultimate. I bought a Smart - Fly power expander and solved the problem, very neat, if you've never seen one go to www.smart-fly.com

They also have an item called an Equalizer 3D which maybe what your looking for, I wanted more than just plugging 4 servos into 1 channel so I went with the Power Expander.

No problem, for 14 bucks you can buy four 6" extensions and make it yourself

I'm no electronics expert but the power drop thru 1 connector to 4 servos ( in my case 4 high torque digitals ) would be a problem.

I've never split digitals 4-ways, but I've run 4 analog servos this way many times with no problem.

In fact, this is better than using 3 "Y" cords due to the lack of connections

Mike, as far as trimming goes...are you better running the 4 servos into Aileron and Flaperon or making the 4 way splitter?

You can use a JR Matchbox. It will handle 4 servos. Adjust endpoints and neutral points for each servo. Adjust travel for all the servos. Even reverse direction for any that may need it. $70 apiece. It'll work perfect.


You can use the 8103 to mix them, but you'll have to use 2 Y-harness'. One Y on the top wing and another Y on the bottom wing.

Top wing servos go into Y and plug that into Aileron.
Bottom wing servos go into Y and plug that into Gear.

Use PMIX #5 or PMIX #6. Either one will work. These 2 mixes will have automatic trim included in the mix. So, when you trim the ailerons on the TX--all them will respond.

PMIX 5:
Plug top wing into Ailerons
Plug bottom wing into Gear.

Set mix for Ail as the master and Gear as the slave.
Set your mix rate to 100% with the aileorn stick in both left and right positions.

Go to GEAR travel adjustment and set the travel to 0% with your gear switch in BOTH positions. This will deactivate the gear switch so that in case you accidentally flip it during flight--the plane won't corkscrew out of control as the bottom wing ailerons deflect to full throw. [X(][sm=drowning.gif]

You'll have to use GEAR Sub Trim to adjust the sub trims on the bottom wing. Use aileron sub trim to adjust ailerons.

This will work. Gauranteed. If you need more help--PM or Email me.

Buteos, If you plan to use Flapperons, you will have to use two receiver channels, so you will need two "Y" cords

MinnFlyer,
I am going to use the two Y's with two channels, I think it will work fine and I will have the ability to fine tune as needed. Thanks to all!!

Dauntae hit the nail right on the head. It's a built in dedicated flaperon function in the XP8103. Gives the most control using up the least resources on the Tx unlike using 2 channels to get a single channel result.

I disagree with using flaperons on a bipe.

Bipes are draggy anyway, and they need power to land. I wouldn't add more drag to the equation by using flaperons.

You use the channel for flaperons to run the other set of Ailerons, you have full control of trimming and mixing without having to tie up your gear switch. It will work fine without a problem....

I used channel 1 and 6 (Futaba) to hook up the ailerons on my ultimate Pitts, then y'd the upper right lower right and y'd the upper left lower left. It works for me. I plan on mixing flaperons this summer, I don't know why I keep hearing bipes need power on landing because they are draggy. I have two bipes and both come in very fast on landing.

This question was posted because I am finishing up a Kangke Waco with a Brison 3.2 for power, it will be everything but "Draggy"

Remember, just because you use the flaperon function doesn't mean you have to use flaps. Just dial the flaps out and don't setup the landing switch with any flap amount. But the flaperon function gives you complete control for tweaking and trimming your ailerons. Just mixing the Y'd top to the Y'd bottom eliminates a lot of control, like seperate travel and end point tuning and even differential if needed.

There is a great guy at our club whom I trust and he will be making the set up on the plane. He knows a great deal about the 8103 JR radio's and is very knowledgeable when it comes to programming them. He was on the buddy box when I first flew so if not for him I wouldn't be flying anything...... Thanks for the input!

You got me Alan.........[X(]