16 • Performance / Weight & Balance
Plot Zero Fuel CG and Takeoff CG on the CG Envelope Graph below.
Answers: (1) 2,140 lbs. (2) 90.95 (3) 2,420 lbs. (4) 91.45 (5) Forward
Formulas
•
Weight × Arm = Moment
•
Total Moment ÷ Total Weight = CG
•
Max Ramp Weight – Zero Fuel Weight = Usable Fuel Weight
•
Fuel Weight ÷ 6 = Fuel Gallons
•
100 LL (Blue) Fuel weighs 6 lbs./gal.; Oil weighs 7.5 lbs./gal.
•
2 Gallons of unusable fuel and oil at full capacity are included in Basic
Empty Weight
CG Envelope Graph
Archer
2500
2400
2300
2200
2100
2000
1900
1800
1700
1600
1500
1400
1300
1200
UTILITY CATEGORY
82 83 84 85 86 87 88 89 90 91 92 93
82
83
84
85
86
87
88
89 90 91 92 93
A
ir
cr
af
t W
eig
ht -Lb
s.
Содержание Piper Archer
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