Center Of Gravity - Diamond DA 40 Flight Manual

DA 40 AFM

2.8 CENTER OF GRAVITY

Datum Plane
The Datum Plane (DP) is a plane which is normal to the airplane's longitudinal axis and
in front of the airplane as seen from the direction of flight. The airplane's longitudinal axis
is parallel with the upper surface of a 600:31 wedge which is placed on top of the rear
fuselage in front of the vertical stabilizer. When the upper surface of the wedge is aligned
horizontally, the Datum Plane is vertical. The Datum Plane is located 2.194 meters
(86.38 in) forward of the most forward point of the root rib on the stub wing.
Center of Gravity Limitations
The center of gravity (CG) for flight conditions must lie between the following limits:
Most forward CG:
2.40 m (94.5 in) aft of DP from 780 kg to 980 kg (1720 lb to 2161 lb)
2.46 m (96.9 in) aft of DP at 1150 kg (2535 lb)
linear variation between these values
'
If MÄM 40-227 is carried out:
'
2.40 m (94.5 in) aft of DP from 780 kg to 980 kg (1720 lb to 2161 lb)
'
2.48 m (97.6 in) aft of DP at 1200 kg (2646 lb)
'
linear variation between these values
Most rearward CG:
a) Standard Tank
b) Long Range Tank
Exceeding the center of gravity limitations reduces the
controllability and stability of the airplane.
Doc. # 6.01.01-E
: 2.59 m (102.0 in) aft of DP
: 2.55 m (100.4 in) aft of DP
WARNING
Rev. 8 01-Dec-2010
Operating
Limitations
EASA
Page 2 - 13
approved