Blackshape Prime - 6.2. Airplane Weighing

CF 300 – Flight Manual sect. 6 – Weight and Balance
BY BLACKSHAPE
Document n° BPU/FM003
Rev 3 dtd 03/06/2014 Page 60
-66
6.2. AIRPLANE WEIGHING
Pre-weighing conditions:
- equipment must be in accordance with the airplane equipment list
- brake fluid, lubricant, cooling liquid and
- unusable fuel, included
To determine the empty weight and the empty weight CG position, the airplane must be
positioned in the above mentioned pre-weighing condition, with the nose gear and each main
gear on a scale. Ensure that the aircraft is level longitudinally and laterally.
With the airplane correctly positioned, a plumb line is dropped from each side of the firewall; join
these two points to determine the reference datum (RD). Measure from this line the distances X
(nose gear), X
2 L H
(left main gear) and X
2 R H
(right main gear).
The fol
lowing formulas apply:
Find Empty – Center of gravity (X
C G
)
Empty W eight : G=G
1
+G
2 L H
+G
2 R H
lbs [kg]
Empty W eight CG Formul a :
X
CG
=
(G
1
x X
1
) + (G
2LH
x G
2LH
) + (G
2RH
x X
2RH
)
G
1
+ G
2LH
+ G
2RH
Find Empty Weight Moment:
Empty-Weight Moment M = Empty Weight (G) x CG (XCG)
UNCONTROLLED