The night skies over eastern England will be a bit louder for the next month as the Air Force’s 48th Fighter Wing conducts night training.

Flying the wing’s F-15 Eagles and F-15E Strike Eagles at night allows crews to maintain proficiency using night-vision equipment, which they could not do during daytime hours, according to an Air Force release.

The night training will continue until mid-November.

“Due to the limited hours of darkness in the summer here, most of the 48 Fighter Wing’s night operations occur between the months of October and March,” wing spokeswoman 1st Lt. Ashley Skillman said in an email. “The extended hours of darkness are optimal for training.”

The 493rd Fighter Squadron, which returned from a deployment this week, will not be taking place in this round of night operations, Skillman said.