Datum was established as per FFP instruction sheet “Celebrity CG Calculations”,
Copy herewith attached. The Datum is located 1.4 inches aft of the centerline of
the main landing gear axle and is therefore a negative value for the purpose of
these calculations.
The following values were obtained:
Empty Weight, Zero Fuel
792 Lbs
Gross Weight 1,230 Lbs
Usable Weight 438 Lbs
Acceptable CG Limits: Most Forward 22% MAC Most Aft 31% MAC
Pilot in Place (205
Lbs), No Fuel.
Zero Fuel in Wing
Tanks
Main gear weight:
904.3 Lbs
Tail Wheel 92.0 Lbs
Datum -1.4 Inches
Total Weight 996.0 Lbs
Main – Tail wheel 156.75 Inches
Cord 48
92 X 156.75/996=14.47-1.4=13.07/48 X 100=
27.2% (OK)
Pilot in Place (205
Lbs), Full Fuel in Main Tank.
Zero Fuel in Wing
Tanks
Main gear weight:
981.2 Lbs
Tail Wheel 89.9 Lbs
Datum -1.4 Inches
Total Weight 1071.1 Lbs
Main – Tail wheel
156.75 Inches
Cord 48
89.9 X 156.75/1071.1=13.16-1.4=11.76/48 X 100=
24.5% (OK)
Pilot in Place (204
Lbs), Full Fuel in Main Tank, 159 Lb Passenger.
Zero Fuel in Wing
Tanks
Main gear weight:
1125 Lbs
Tail Wheel 105 Lbs
Datum -1.4 Inches
Total Weight 1230 Lbs
Main – Tail wheel
156.75 Inches
Cord 48
105 X 156.75/1230=13.38-1.4=11.98/48 X 100=
24.9% (OK)
