DV 20 E AFM
Mass and Balance
Doc. No. 4.01.25-E
Rev. 2
22-Mar-2022
Page 6 - 3
NOTE
Refer to Section 1.6 - UNITS OF MEASUREMENT for
conversion of SI units to US units and vice versa.
6.2
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 1000:56 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 at the most forward
point of the root rib on the wing.
Summary of Contents for DV 20 E
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