At 05:50 PM 8/31/2006, you wrote: >The nice thing >about the firewall as the Datum line is that in most cases it will not move >or change. ___________________________________________________________
If the firewall is used, won't that necessitate negative numbers on a tri-gear? As the KR manual gives the required CG as a distance aft of the lead edge of the wing you can pick any point forward of the three wheels (axle line) on the scales and keep the numbers positive. I used my prop flange and my aircraft records state that. If anything forward of my firewall ever changes a new point can be picked and that referenced back to the lead edge of the wing for any calculations. Determining the CG location of your aircraft is not rocket science but CRITICAL TO FLIGHT. If you don't FULLY understand what you are doing, find a flying buddy or mechanic that does and get them to help you out. If we have several people at the Gathering that don't fully understand W&B we can cover it in the airframe forum or a separate forum altogether. Larry Flesner
