Basic Empty Mass 3210
Pilot/Front pass 360
Passenger/BZ2 290
Passenger/BZ3 110
Baggage Z1 100
Baggage Z4 50
ZFM therefore equals 4120Lbs
Fuel 100 Us Gal at 6Lbs/Gal = 600Lbs
ZFM+Fuel = 4720Lbs