How were planes used in WWI??

There were fighter aero planes , bombers aero planes , and attack aero planes.
There were many different ways they used the planes for.

There were many planes in WW1. They used in many ways to. There were fighter planes , bomber planes,fighters. Air crafts were used first in WW1. Someone also said that the planes were a little useless. At first they were crude and just boring and plain. Until the UPGRADEE!

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