Mass & Balance
DA 40 AFM
Page 6 - 8
Rev. 8
01-Dec-2010
Doc. # 6.01.01-E
Moments
Multiply the individual masses by the moment arms quoted to obtain the moment for every
item of loading, and enter these moments in the appropriate boxes in Table 6.4.3 -
CALCULATION OF LOADING CONDITION.
Total Mass and CG
Add up the masses and moments in the respective columns. The CG position is calculated
by dividing the total moment by the total mass (using row 7 for the condition with empty
fuel tanks, and row 9 for the pre take-off condition). The resulting CG position must be
within the limits.
CAUTION
For airplanes equipped with the optional Long Range Tank,
a restricted range of permitted CG positions applies.
As an illustration the total mass and the CG position are entered on Diagram 6.4.4 -
PERMISSIBLE CENTER OF GRAVITY RANGE. This checks graphically that the current
configuration of the airplane is within the permissible range.
Graphical Method
Diagram 6.4.2 - LOADING DIAGRAM is used to determine the moments. The masses
and moments for the individual items of loading are added. Then Diagram 6.4.5 -
PERMISSIBLE MOMENT RANGE is used to check whether the total moment associated
with the total mass is in the admissible range.
The result found with the graphical method is however inaccurate. In doubtful cases the
result must be verified using the exact method given above.
Summary of Contents for DA 40
Page 1: ......
Page 37: ...DA 40 AFM General Doc 6 01 01 E Rev 8 01 Dec 2010 Page 1 21 1 7 THREE VIEW DRAWING ...
Page 182: ...Performance DA 40 AFM Page 5 12 Rev 8 01 Dec 2010 Doc 6 01 01 E ...
Page 184: ...Performance DA 40 AFM Page 5 14 Rev 8 01 Dec 2010 Doc 6 01 01 E ...
Page 186: ...Performance DA 40 AFM Page 5 16 Rev 8 01 Dec 2010 Doc 6 01 01 E ...
Page 190: ...Performance DA 40 AFM Page 5 20 Rev 8 01 Dec 2010 Doc 6 01 01 E ...
Page 288: ...Handling DA 40 AFM Page 8 6 Rev 8 01 Dec 2010 Doc 6 01 01 E ...