Know its probably a stupid question but here goes. I know you shoulnd't trust self adhesive on weights and epoxy them but should you take covering off where you will be putting them or will they glue to covering?

I have had good success with using the adhesive-backing on the weights. It sticks well to clean covering, or to a clean painted surface.

A little trick I have learned that will help adhesive to stick is to use a lighter and heat the adhesive before you stick it on. After you heat it immediately stick it where you want and then firmly press it on and wait for it to cool. You'll find that doing it this way will make it extremely difficult to come back off. Give it a try.

Hope this helps.

Ken

That's a neat trick Ken! [sm=thumbup.gif]

Before you start putting weights on your model, you may want to try moving your battery pack around to try to balance without adding weight. Most trainers with their long, heavy tails often require the battery to be placed up front with the fuel tank. If the plane is tail heavy with the battery up by the CG, you can take it out and use masking tape to position it on the fuselage while you check the CG. Once you determine where the battery pack needs to go, then you can mount it securely inside the fuselage. I have a few planes with an access hatch near the tail for the battery pack, this keeps the overall weight down and benefits your flight characteristics.

If I have to add weight, I usually drill a hole in the lead weight and fuselage, treat the fuselage hole with thin CA and then put the weight on with the two sided tape and a screw. Glow fuel has a tendency to creep under almost anything and loosen it over time, so the screw helps ensure the weight stays attached.

Actuakky it is nose heavy bought a used great planes big stick and after putting in the servos found out about it being nose heavy can't believe the guy flew it in this condition cause don't see where if any put weights. It came with engine alreay mounted also

dont glue weights in....ive torn one up that way already. lead weights with hollow centers and zip ties are working well for me

i would drill them and use screws,epoxy can crack from vibration.also if you decide to use a bigger engine they will mess up your wood trying to remove them if you use epoxy.try to get them to the tale as far as possible i drill and use ca on the balsa after i have tapped the hole with the screws I'm gonna use.try to put the weights on the bottom of the tale as far back as you can so you wont have to use as much....happy flying