> I am going to re-run the calculations using the firewall datum and > see if they match.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Keep your datum forward of the nose wheel scale and don't forget to include the weight of the cowl, prop, and spinner. Just setting or hanging them in their proper location will do. Make sure you have an accurate distance from your datum to your target CG location. Larry Flesner
