There seems to be some good discussion regarding trimming of the airplane and thrust effects. I suggest that you go to your local hobby shop and purchase the November 2002 issue of FLYING MODELS and read Dean Pappas article starting on page 40. Most of your questions will be answered.
Hope this info will help.
George Frazier


You can reach Dean Pappas @ Flying Models
PO Box 700,
Newton, New Jersy
07860