XtremeAIR XA41, Maintenance Manual, Page: 277 / 284

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POA-Nr.: DE.21G.0227
Control surfaces mass and balance
XA42
Form FO P-24 rev. 1 Dated 9.12.2013
Control surfaces mass and balance
Model: Serial Number (S/N): Registration:
XA41 / XA42
Refer to AMM chapter 51-60-01 and follow the procedure to determine the mass and balance of the
control surfaces.
Control surface
Mass (kg) Moment
Should be* Is
Balance
Mass (kg)
is
Distance (m)
measuring
point aft of
hinge line
Balance Mass (kg)
Should be
Left aileron with/without
spade & spade arm
6,4
– 9,4
0,286
0,8
– 1,4
Right aileron with/without
spade & spade arm
6,4
– 9,4
0,286
0,8
– 1,4
Elevator without flettner 10 - 13
0,560
0,3
– 1,8
Flettner 0,35
– 0,55
0,145
0,05
– 0,15
Rudder 5,2
– 6,2
0,870
0,7
– 1,5
Comments / Deviations:
To perform the moment measurements the control surface needs to be suspended by a frictionless
axis. The mass on the most rear point of the control surface on horizontal position is to be measured.
Crosscheck the arm of the measurement point to the axis with the distance indicated in the table.
Created: Signature:
________________________________
Place, Date
Checked: Signature CS:
________________________________
Place, Date