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human
ELI5: What keeps the refueling boom attached to fighter jets?

Title says it all. When a fighter jet attaches to the boom, what keeps it from detaching? Also, how quickly does the fuel transfer from refueling plane to jet? 


TIA!!
gpt
Toggles inside the receivers receptacle latch onto the nozzle of the boom. Both tanker and receiver have disconnect switches to release the toggles when necessary. Fuel transfer rates are determined primarily by the receivers system. Basically, 1500-3000 pounds per minute for fighters and 3000-7000 ppm for heavies is a pretty general wag.