Transformers: Generation 1
The Aerialbots were created on Cybertron around the same time as the Stunticons as a countermeasure to the new Decepticon car team after the mainly land based Autobots proved woefully inadequate as a counter. To do this, Optimus Prime journeyed to Cybertron, with along with his troops rebuilding old planes and shuttles into Aerialbots by name, Silverbolt, Skydive, Slingshot, Fireflight, and Air Raid as a combiner team to form into Superion. In the Rebirth episodes the Aerialbots were all killed off by the Decepticon Sixshot who single handedly took down by himself.
War for Cybertron
The aerialbots in War for Cybertron are mostly former Decepticon seekers that joined the Autobots.