NOTE: this quick reference chart is NOT a substitute for the complete Weight and Balance information contained in the Builder’s Manual CAUTION: the Gross Weight is established by the builder, who is considered the manufacturer. Pilot & Front Seat Passenger 114.58” aft of datum Rear Seat Passenger(s) 151.26” aft of datum DETERMINING EMPTY CG Level the aircraft longitudinally and laterally using the longerons in the cabin area as the level reference. Weigh the airplane with doors closed, full oil and fuel tanks empty. Enter the weights and distances from the datum (arms) in the chart below. Multiply weight by arm to obtain moment. Divide the total moment by total weight to determine the empty CG.