Larry do you have any internal baffle plates in your tanks? I am also considering utilizing the now hollow D-box space for a tubular tank that will also be full span. This will practically eliminate any CG shift as fuel burns off.
Regards Dene Collett Avlec Projects cc Builders of award winning aircraft tel:27419560048 cell: 27845805003 Port Elizabeth South Africa Larry wrote: A long slender tank from root to tip, located immediately behind the forward spar helps to keep the CG shift to a minimum from full to empty on fuel. ns
