I have a couple of questions, did the "search" but can't find direct answers to them;

Just finished building my first glow plane, GP Big Stick .40 and now setting up my radio(9CHP). It uses two servos for the aileron how do I plug these servos to the receiver? Do I use a "Y" harness to connect the two and plug in one corresponding channel on the receiver? Or some other way.

And lastly, I know that I need to balance my propeller but can't find "how" to balance a propeller. I bought a Prop Balancer and one blade is lighter. How do I actually balance them? Trim one blade? Add weight? How?

Sorry for this simple/basic question but I'm a newbie with planes (RC Heli pilot). I can get some help in the field tomorrow but want to finish my set up tonite first before I bring my plane.

Thank you for your time...[8D]

The simplest way to connect two servos is using a Y harness plugged into the normal aileron socket on the Rx. Doing it this way will mean that you don't need to worry about getting the connections reversed (very bad, trust me) however you will need to ensure that the mechanical connection between the servo and the aileron is such that the ailerons move in opposite directions.

The alternative is to use separate channels and mixing. I assume a 9CHP is a computer radio so you should be able to do this, the advantage is that you will be able to use flaperons. All in all I would leave this until later.

Usual way to balance a prop is to carefully remove a little material from tip of the heavy blade. Never heard of anyone adding weight, getting it to stay attached would be a challenge[X(]

Regards


Terry

thanks for the reply, I think I have an idea now with the two servos on the ailerons using "Y" harness and that they need to move in opposite direction....I'll mess with the "flaperons" later.

with balancing the blades, with a heli main rotor blades we just add tracking tape to add weight to the lighter blade...FYI..

Use a standard "Y" harness on the aileron servos. Run the linkages as mirror images and the travel direction will be right.

Balancing the prop is VERY miportant. If it's a composite prop, it will probably be in balance, but check anyway. If it's OOB, take it back and exchange it. If it's a wood prop, definitely check it. I like to spray clear poly-u on the front of the light blade. If it takes more than a couple of coats, I scrap the prop. I don't like to sand the neavy blade, and DO NOT cut the end off to balance.

Dr.1

Hi!
Balancing propellers is easy.
You just sand the front side ( the curved side) of the propeller! That's it!
Use fine sandpaper 180-240.
Don't be afraid of doing this as it is so very easy to do. If you sand a wooden prop I would recommend to finally putting on Ca glue (thin variety) on it, spread out thin by using a finger(real messy), then sanding and polishing to a bright mirror shine. I do this with both my carbon and with my wooden propellers.
Plastic props (like APC) I only sand.
Never ever add any weights to your propeller or put on any plastic covering film like when covering heli blades. And do not balance a propeller by cutting the tip on just one side...that's dead penalty on doing this....
And don't be afraid to modify propellers by altering the the shape of the blade(s) and thinning the blades.
That way you learn more about how to get more performance from the prop. (you also learn what not to do).
But always be careful what you do, A spinning prop is mighty powerful and could do much harm to ones body.

Regards!
Jan K
Sweden


Regards!

JanK

Appreciate all the response, just balanced my APC prop by sanding some material away. With the aileron I'll get the "Y" harness and will study my radio manual for setting up flaperons. I was told that if I set this up it can help with some maneuvers.

Go ahead and read up but you are a long way from doing maneuvers that will require flaperons or any other mixing. Please learn basic flying first. The fancy stuff will be waiting for you when you are ready. You chose a good radio for all of this.

thank you for those words of encouragement Bruce...... but don't worry I'll go about this as slowly and safely as possible with the help of some of the experienced pilots at my field...........Peace!!!!!

Having two aileron servos on individual channels does NOT REQUIRE flapperon settings. That is just something it will enable as well as other things.

If you have at least 5 channels on your receiver, you can put the ailerons on separate channels. Now you can fine tune each aileron from the radio, reverse one servo, etc. I would set it up this way for convenience. And, in the future if you want to use some of the special features of the Futaba 9C ( I have the same radio) you will be good to go.

A Y cable, if you have a 5 channel receiver, is just an unneeded expense that adds weight and requires you to mount the servos in such a way that you won't have to reverse one.

Put them on separate channels. The manual tells you how to do this.

Saw you built a Big stick where did you run your rx antenna bought a used one and don't really see where he had ran one before thinkinking of drilling hole in bottom and run thru to the back thru fuel tubing

That's exactly what I did, connected the ailerons into 2 different channels which enables me to activate flaperons but left it INH for now. Don't you just love these computer radios?[8D] I'm learning more about this radio everyday especially the features in ACRO Mode. But I must confess I have to get a cheat sheet that I can use as quick reference for I have different switch assignments between HELI and ACRO modes, or else I'll mix them up.

knight,
I drilled a hole on the left side of the fuse(low) and ran it towards the tail, or you can do it towards the vertical stab but to me it will look tacky especially I have a white colored wire. I've seen one where it was ran at the bottom just like what you posted.

you should not generally sand the curved blade side as this can change the airfoil. the last inch or so of your prop does 90% of the work so its critical. the FLAT side of the blade is actually called the FACE of the blade.