COZY III - Page 48

Cozy III
Pilot’s Operating Handbook Page 48
forward. Empty weight is the total of all weights measured on
the scales, less ballast and/or tares (boards or shims placed
below wheels on scales).
Each net weight times its F.S. position gives its moment, and the
sum of the moments divided by the net weight gives the c.g.
location.
SAMPLE DATA AND CALCULATION:
ITEM
GROSS
TARE
NET
ARM
MOMENT
Scale R. Main
447.6
0.0
447.6
109.5
49012
Scale L. Main
450.0
-0.5
449.5
109.5
49220
Scale Nosewheel
4.5
-1.0
3.0
18.5
55
Ballast (minus)
-10.0
0.0
-10.0
8.0
-80
TOTAL
890.1
110.3
98208
3.110
1.890
98208
.. ===
Netweight
tTotalMomen
gcEmpty
NOTE: Be sure to subtract both the weight and the moment of
the ballast.
Figure 7: Your Aircraft Data and Calculation
ITEM
GROSS
TARE
NET
ARM
MOMENT
Scale R. Main
Scale L. Main
Scale Nose Wheel
Ballast (minus)
TOTAL
Now, record the empty weight and moment for your aircraft on
the table above. Determine by trial and error the maximum front
seat weight with zero fuel and no back seat baggage or