dean van winkle wrote:

Sorry Paul, I had not picked up from the earlier posts that we were talking about a pusher installation on John's aircraft. Certainly the 13B CG would need to go aft in that case.  Otherwise, my comments regarding using the firewall as a datum point and calculation approach still apply. Using the firewall as a datum point for this particular case avoids getting into plus and minus moments especially if the aircraft datum is something other than the firewall.

Best Regards
Dean
RV-9A

 
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