If you can't find a manual, see the RCU Magazine section up top. There was a January 2003 build review of this plane that should get you most of the way through the build. Unfortunately Page 2 is missing which probably had the CG and throws information. However, you probably won't go wrong with balancing on the main spar and using the throws from just about any other .40 sized trainer that you can find a manual for as a starting point.