I hate placing the CG where I thinik it should be acording to the plans, taking the plane to the field, flying it and noteing where my next adjustment should be when I fly it next time whenever that is going to be. Does anyone have an easy way or technique they use so you can just stay at the field and test all day long?

You can use split sinkers and tape them on where you think they should be. You can move the tape in or out, add or take-away. When you get it where you want it then you can make the final adjustment back at the shop.

I do that all of the time with a new plane. As you are installing the equipment keep in mind that you may have to change the CG. Before you anchor anything down decide if that is an item you may want to move later for CG anjustment. The ideal item is the battery. Can you place it at or near the CG and still be able to move it forward or backward. I once provided for two locations for the wing in order to shift the CG. What all this boils down to is planning. Have the CG in mind during all the steps of building. As an example, it took me many planes to realize that the majority of the weight of the covering you put on the plane will be behind the CG. If you balance the plane perfectly before you cover it, it will be tail heavy. Planning, that is the secret.

Self-adhesive stick on lead weights. Once you are happy, remove some covering and epoxy them on.

yes stick on weights are the easiest thing, or you can get an extension and just move your battery, that is if you haven't already moved it as far as possible.. the plane already has to fly with the weight of the battery though, why not utilize that weight instead of adding more weight!?

stick on weights would be th best, and they come in many different weights. If one weighs too much, the lead is soft enough to cut with a pair of shears.

Thanks, it would be neet to mount a servo in the fuselage, put a long arm on the servo and attach a weight to it. Balance the airplane, then with the servo on a spare channel and assigned to a knob, just move the knob which would reposition the weight fore or aft moving the CG. Once the airplane has the right feel, check to see where the balance point is and remove the servo and weight. Then reposition the battery and such to balance in the same spot. I know, it sounds like a radical idea. It's just something I have always thought about trying.

Good in theory but not very practical.

I know, just a thought.

easist place to get stick on weights is tyre balancing place ,weights they use on Mag wheels are stuck on just peel and stick

I use something called, plumbers putty to adjust the cg when I get it where I want it to be and am happy with the way the plane fly’s then I make a more permanent adjustment like was said here stick on weight or drill and use screws to attach weights. the plumbers putty is sticky enough to stay put to test an airplane, it however doesn’t work well in cold temperatures as far as staying put. you can stick it in some pretty tight places though.

i saw a guy on rcu about 2 months ago who had made a balsa wood sleeve that his battery slipped into and it was on a balsa track (all homemade) and he did exactly what you are talking about, except with his battery! i tried hard to think of a use for that and i guess 3d flight would be the only reason i could think of that you might need your cg to be adjustable like that all the time, unless your battery needed to be back in the fuse where you can't reach and so you use a servo to place it? but it looked really neat, as he had spent a lot of time on it obviously!

Now that's an idea!