| I am building an electric flier out of a wood dowel, scraps of pine, | and a replacement wing and tail from a production model. I have all | the radio gear and motors, props and such from a destroyed foamy. I | have pictures of it. Please have a gander. | |
formatting link
| | I think that I have a major issue with the center of gravity. I seems | to be too far to the rear. Most of the specs are listed on the site.
Your center of gravity is a few inches *behind* the wing? Yes, your CoG is *way* off. It should be 25% to 33% of the length (front to back) of your wing from the front of your main wing.
Move the wing back several inches, or your motor and battery forward several inches (making the nose longer.) Also, that thing to support the tail looks very heavy, and with it that far back, it'll throw your CoG way off. Make the part of the plane behind the wing shorter if you can't move the wing back far enough.
CoG is possibly the most important thing to get right when building or designing a plane. With yours as far back as it is, the plane would probably fly better backwards than forwards :)
| I was thinking of bringing the tail in a bit and bringing | the motor assembly farther out front, and lightening the tail. Oh, the | motor is a GWS EP-350. I know this seems silly, but Id appreciate any | helpful comments.
Not silly. Sounds like what you need to do -- but the needed changes are going to be quite drastic.
If you need more help, take more pictures, especially of everything hooked up and catch the whole plane, being sure to mark where the CoG is.