DOT MARKS THE SPOT

Electric Flight - - SHOPTIPS -

To mark the cen­ter-of-grav­ity bal­ance points on the wings of your model air­planes, first run a piece of 1-inch-wide low-tack tape along the wing where it meets the fuse­lage. Then mea­sure the pre­scribed dis­tance from the wing’s lead­ing edge and make a mark on the outer edge of the tape. At that mark, stick an ad­he­sive-backed door bumper to the wing and then re­move the tape. The bumper is easy to lo­cate by feel when check­ing the cen­ter of grav­ity, and be­cause it’s trans­par­ent, it can’t be seen. John Flem­ing, Nampa, ID

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