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Mass and balance

Load the aircraft and see whether mass and centre of gravity stay within the limits.

Datum1 m2 m3 m
160 kg
0 kg
10 kg
140 L · 101 kg
40 L · 29 kg
0.901.001.101.207008009001000110012001300Centre of gravity (m)Mass (kg)Max 1,150 kgLandingTake-off
  • Take-off: within the limits1,021 kg (max 1,150 kg) · centre of gravity 0.974 m · limits 0.957 m to 1.150 m
  • Landing: within the limits992 kg (max 1,150 kg) · centre of gravity 0.974 m · limits 0.947 m to 1.150 m

Take-off: within the limits. Landing: within the limits.

Burning 40 L moves the centre of gravity 1 mm aft: the tanks sit ahead of it.

Loading sheet
StationMasskgArmmMomentkg·m
Empty aircraft7500.97727.5
Front seats1600.92147.2
Rear seats01.750
Baggage area102.3523.5
Fuel, 140 L1010.9595.9
At take-off1,0210.974994.1
Burned, 40 L-290.95-27.5
At landing9920.974966.6

Moment is mass times arm. The centre of gravity is the total moment divided by the total mass; it sits with the totals in the arm column.

This is an example aircraft for learning. For a real flight, always use the flight manual of your own aircraft.

Lessons with this instrument