system
Given the following post, respond as if you're commenting on Reddit:
human
[Pacific Rim] Why were the Jaegers constantly surrounded by a swarm of helicopters during a battle with the Kaiju?

It's shown time and again in the documentaries of the Kaiju War that whenever a battle between a Jaeger and Kaiju is going on there seems to be several large helicopters just kind of flying around shining spotlights on the fight. Are they the ones filming? Just watching? Running some kind of interference? It seems like a mighty dangerous place to be flying around without a good reason...
gpt
There are a variety of tasks the helicopters could assist in.  For example, during the battle against Otachi, when the Kaiju was hiding among the skyscrapers, Gipsy's pilots called upon the helicopters to help search for the monster.  

Other possibilities include rapid evacuation of the Jaeger pilots in the event that the Jaeger is disabled, aerial transport of the Jaeger over terrain that the Jaeger itself can't navigate, collection of video and other data from the battle for later analysis, etc.