cg
 

Does anyone know what the cg is of the wildhare 85" gas sukhoi honda rc plane?

28 to 32 percent of the wing chord measured at the root is textbook balance range.

It will vary slightly depending on how you want to fly the airplane. I like a scale aerobat that is very predictable and has minimal control cross couple. This setup requires that the engine thrustline and stab are set to zero but the wing has 1/2 to 3/4 degree positive. Then adjust the CG so that no elevator trim is required.

3D setup is a bit different as it uses the typical 0-0-0 setup and you run the CG back enough that no elevator trim is required. Flying will be a higher pilot workload but the airplane will do post stall maneuvers easier. This setup will have a pronounced down pitch with rudder application unless mixed out with your TX that will never 100% be eliminated.

As stated above. 30% back from the wing LE at the root is a good starting point.