Fuel tanks anyone? :)

[StarJourney]

Hi all, I'd like to modify my Rans S-7 for a round-the-world sightseeing tour.  I'd like to put a 25 gal fuel tank in place of the rear seat, but seem to be unable to get the aircraft.cfg file to recognize a center tank.  Can someone help me out please?

thanks

[Felix/FFDS]

Are you calling it: center1?

[fuel]
center1 =  -4.1, 0, -.8, 27.0, 2.0   //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
LeftMain  = -4.1, -7.9, -0.8, 47.5, 3.0       //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
RightMain = -4.1,  7.9, -0.8, 47.5, 3.0       //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
fuel_type = 1                                 //Fuel type: 1 = Avgas, 2 = JetA
number_of_tank_selectors = 1                    
electric_pump=1

(Note - this is the Mooney fuel section from the aircraft.cfg (*FSX*) with the center1 tank added - no guarantee is made that such a combination does no affect the COG, etc. etc.

[StarJourney]

I'll give it a shot!  Thank you!