A pallet with a freight platform, has a total mass of 300 kg and measures 100 cm x 150 cm. The pallet is carried on two ground supports each measuring 20 cm x 100 cm. The cargo compartment has a maximum floor loading intensity of 800 kg/m2. Calculate how much mass may be added to, or must be off loaded from the pallet in order for the load intensity to match the cargo compartments's maximum permitted floor loading limit.
In this question, the size of the pallet is not relevant. You must only consider what surface area is in contact with the cargo compartment floor. The pallet is carried on two ground supports and it is this area that is relevant when considering floor loading.
This calculation is a 2 step process:
Step 1. Calculate the area of the ground supports in contact with the aircraft floor. It is suggested to work in m2 as the floor loading is given as 800 kg/m2.
0.2 m x 1 m = 0.2 m2 area per ground support.
Two ground supports = 0.4 m2 total area.
Step 2. Calculate the floor loading limit by the area available:
1 m2 = 800 kg.
0.4 m2 x 800 kg = 320 kg allowed.
The pallet and ground supports weigh 300 kg. With 320 kg allowed, this means that 20 kg may be added.
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Spain3
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Romania1
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